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A catalyst composition containing cobalt manganese oxide which is modified with silicon in the form of a hydrophilic silica, the catalyst also containing at least one of lanthanum, phosphorus, Fe, Zr, and Zn, and optionally one or more basic elements selected from the group of alkali metal, alkaline earth metal, and transition metals. Also, methods for preparing and using the catalyst composition for producing aliphatic and aromatic hydrocarbons using the catalyst composition.

Claims which contain your search:

1. A catalyst composition comprising cobalt; manganese; hydrophilic silica; and at least one element selected from the group of lanthanum, phosphorus, Fe, Zr, and Zn, wherein the relative molar ratios of the elements comprised in the composition are represented by the formula CoMn_(a)Si_(b)XcM_(d)O_(y )

4. The catalyst composition according to claim 1, wherein X is two elements, wherein the elements are lanthanum and phosphorus, and wherein c for each of lanthanum and phosphorus is from greater than 0 to about 0.005.

6. The catalyst composition according to claim 1, wherein the hydrophilic silica has a pH of 3.7-4.7.

7. The catalyst composition according to claim 1, wherein the hydrophilic silica has a specific surface area of 200 m ^(2)/g to 400 m ^(2)/g.

8. The catalyst composition according to claim 1, wherein X is one element and wherein the element is selected from the group consisting of Fe, Zr, and Zn.

10. The catalyst composition according to claim 1, wherein the catalyst has at least one of lower methane formation, lower carbon dioxide formation, higher activity, higher conversion of syngas, or higher total olefins formation as compared to the same catalyst without the Si _(b )component.

11. A method of producing olefins comprising contacting syngas with the catalyst composition of claim 1.

12. A method for preparing the catalyst composition of claim 1, comprising the steps: (a) preparing a solution of cobalt- and manganese-comprising salts to form a cobalt-manganese-solution; (b) admixing an alkaline solution to the cobalt-manganese-solution to form a precipitate; (c) admixing a hydrophilic silica and a solution of at least one of a lanthanum, phosphorus, Fe, Zr, and Zn salt; and/or a solution of a phosphorus-comprising salt; evaporating any water present therein and drying, and then adding the resulting solid to the solution comprising the precipitate to form a modified precipitate; (d) separating the modified precipitate, washing and drying the modified precipitate to form a dried precipitate; (e) calcining the dried precipitate in air to form a calcined catalyst precursor; and (f) contacting the calcined catalyst precursor with a reducing agent.

14. A process for producing a product stream comprising a mixture of aliphatic and aromatic hydrocarbons, the process comprising contacting the catalyst composition of claim 1 with a syngas mixture.

16. The process according to claim 14, wherein the catalyst composition is in a fixed bed reactor or fluidized bed reactor.

20. A process for producing ethylene and propylene from syngas, the process comprising the steps of a) contacting a syngas with a first catalyst composition to obtain a first product stream comprising ethylene, propylene, and aliphatic hydrocarbons having 4 or more carbon atoms, b) splitting the first product stream into a second product stream comprising at least 90% of the aliphatic hydrocarbons having 4 or more carbon atoms and a third product stream comprising ethylene and propylene, c) separating ethylene and propylene in the third product stream so as to form a first ethylene stream and a first propylene stream, and d) converting the second product stream into a fourth product stream comprising ethylene and/or propylene.

36. The catalyst composition of claim 1, wherein the hydrophilic silica comprises a pyrogenic silica.

26. The process according to claim 20, wherein the first catalyst composition is unsupported and comprises cobalt, manganese, and at least one element selected from the group of lanthanum and phosphorus, wherein the relative molar ratios of the elements in the composition are represented by the formula CoMn_(a)La_(b)P_(c)M_(d)Ox

27. The process according to claim 20, wherein the first catalyst composition comprises cobalt, manganese, hydrophilic silica, and at least one element selected from the group of lanthanum, phosphorus, Fe, Zr, and Zn, wherein the relative molar ratios of the elements in the composition are represented by the formula CoMn_(a)Si_(b)XcM_(d)Oy

...

Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: LCE-08-2016-2017 | Award Amount: 5.56M | Year: 2016

The FLEDGED project will deliver a process for Bio-based dimethyl Ether (DME) production from biomass. The FLEDGED project will combine a flexible sorption enhanced gasification (SEG) process and a novel sorption enhanced DME synthesis (SEDMES) process to produce DME from biomass with an efficient and low cost process. The primary aim of FLEDGED project is to develop a highly intensified and flexible process for DME production from biomass and validate it in industrially relevant environments. This objective will be accomplished by: - Experimental validation of the flexible SEG process at TRL5; - Experimental validation of the flexible SEDMES process at TRL5; - Evaluation of the full biofuel production chain from energy, environmental, economic, socio-economic and risk point of view; - Preparation of the ground for future exploitation of the results of the project beyond FLEDGED, by including in the consortium industrial partners along the whole biofuel production chain. By combining the SEG and the SEDMES processes, the FLEDGED project will validate a plant concept that: - is characterized by a tremendous process intensification: sorption of CO2 in the gasifier and of water in the DME reactor allows designing an overall process for DME production with only two fundamental steps and with reduced units for syngas conditioning - allows operating with a wide range of biomass feedstocks - will be more efficient than competitive processes and expected to have a lower cost, thanks to the reduced number of components, the avoidance or significant reduction of recycles and the avoidance of energy consuming and costly air separation and CO2 separation units - is capable of producing syngas with tailored composition by adapting the SEG process parameters, which allows coupling with an electrolysis system for converting excess intermittent renewable electricity into a high value liquid fuel

...
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Name Score Publications Conferences Grants Patents Trademarks News Webs
37.9 10 10 10 10 10 10 10
32.1 10 10 10 10 10 10 10
31.9 10 10 10 10 10 10 10
30.9 10 10 10 10 10 10 10
25.2 10 10 10 10 10 10 10
24.8 10 10 10 10 10 10 10
23.7 10 10 10 10 10 10 10
23.0 10 10 10 10 10 10 10
22.9 10 10 10 10 10 10 10
22.3 10 10 10 10 10 10 10
22.3 10 10 10 10 10 10 10
21.9 10 10 10 10 10 10 10
21.6 10 10 10 10 10 10 10
20.8 10 10 10 10 10 10 10
20.8 10 10 10 10 10 10 10
20.8 10 10 10 10 10 10 10
20.5 10 10 10 10 10 10 10
20.5 10 10 10 10 10 10 10
19.5 10 10 10 10 10 10 10
19.4 10 10 10 10 10 10 10
18.5 10 10 10 10 10 10 10
17.8 10 10 10 10 10 10 10
17.7 10 10 10 10 10 10 10
17.2 10 10 10 10 10 10 10
16.9 10 10 10 10 10 10 10
16.9 10 10 10 10 10 10 10
16.9 10 10 10 10 10 10 10
16.3 10 10 10 10 10 10 10
16.1 10 10 10 10 10 10 10
16.0 10 10 10 10 10 10 10
15.9 10 10 10 10 10 10 10
15.6 10 10 10 10 10 10 10
15.5 10 10 10 10 10 10 10
14.4 10 10 10 10 10 10 10
14.3 10 10 10 10 10 10 10
12.1 10 10 10 10 10 10 10
12.1 10 10 10 10 10 10 10
12.0 10 10 10 10 10 10 10
11.9 10 10 10 10 10 10 10
11.8 10 10 10 10 10 10 10
11.0 10 10 10 10 10 10 10
10.9 10 10 10 10 10 10 10
10.8 10 10 10 10 10 10 10
10.7 10 10 10 10 10 10 10
10.6 10 10 10 10 10 10 10
10.3 10 10 10 10 10 10 10
10.1 10 10 10 10 10 10 10
10.0 10 10 10 10 10 10 10
9.9 10 10 10 10 10 10 10
9.8 10 10 10 10 10 10 10
9.8 10 10 10 10 10 10 10
9.7 10 10 10 10 10 10 10
9.6 10 10 10 10 10 10 10
9.6 10 10 10 10 10 10 10
9.5 10 10 10 10 10 10 10
8.8 10 10 10 10 10 10 10
8.8 10 10 10 10 10 10 10
8.8 10 10 10 10 10 10 10
8.6 10 10 10 10 10 10 10
8.6 10 10 10 10 10 10 10
Curtin University Australia
8.6 4 - - 10 10 10 10
French National Center for Scientific Research
8.4 8 2 - 10 10 10 10
University of Tenaga Nasional
8.4 1 3 - 10 10 10 10
University of Stuttgart
8.3 1 - 1 10 10 10 10
University of Colorado at Boulder
8.3 3 - - 10 10 10 10
Washington State University
8.3 5 1 - 10 10 10 10
Central Queensland University
8.2 2 2 - 10 10 10 10
Marche Polytechnic University
8.1 1 4 - 10 10 10 10
University of Engineering and Technology Lahore
8.0 2 1 - 10 10 10 10
Okayama University
8.0 2 - - 10 10 10 10
Parthenope University of Naples
7.9 6 1 - 10 10 10 10
CSIRO
7.8 2 2 - 10 10 10 10
Carnegie Mellon University
7.8 5 4 - 10 10 10 10
Université de Sherbrooke
7.7 4 1 - 10 10 10 10
University Utrecht
7.7 1 - - 10 10 10 10
Indian Institute of Technology Madras
7.6 3 2 - 10 10 10 10
University of Cassino and Southern Lazio
7.5 3 - - 10 10 10 10
CSIC - Institute of Carbochemistry
7.4 2 - - 10 10 10 10
Huazhong University of Science and Technology
7.4 3 - - 10 10 10 10
Kansas State University
7.3 3 - - 10 10 10 10
Lund University
7.3 5 1 - 10 10 10 10
Harbin Institute of Technology
7.3 1 1 - 10 10 10 10
Karlsruhe Institute of Technology
7.2 5 1 - 10 10 10 10
Polytechnic Institute of Portalegre
7.2 6 2 - 10 10 10 10
University of Washington
7.1 - - 1 10 10 10 10
Indian Institute of Technology Guwahati
7.0 2 - - 10 10 10 10
CSIC - National Coal Institute
7.0 1 - - 10 10 10 10
China Agricultural University
7.0 3 - - 10 10 10 10
Amec Foster Wheeler
6.9 - 1 1 10 10 10 10
Cooperative Research Center for Greenhouse Gas Technologies
6.9 1 - - 10 10 10 10
École de Technologie Supérieure of Montreal
6.8 1 - - 10 10 10 10
Korea Research Institute of Chemical Technology
6.8 7 - - 10 10 10 10
University of Ulster
6.8 2 - - 10 10 10 10
Agencia Estatal Consejo Superior Deinvestigaciones Cientificas
6.8 - - 1 10 10 10 10
CAS Shanghai Institute of Applied Physics
6.7 1 - - 10 10 10 10
University of Campinas
6.7 8 1 - 10 10 10 10
Lappeenranta University of Technology
6.7 - - 1 10 10 10 10
Colorado School of Mines
6.7 3 - - 10 10 10 10
University of New South Wales
6.7 1 - - 10 10 10 10
Kiverdi Inc.
6.6 - - - 10 10 10 10

A catalyst composition containing cobalt manganese oxide which is modified with silicon in the form of a hydrophilic silica, the catalyst also containing at least one of lanthanum, phosphorus, Fe, Zr, and Zn, and optionally one or more basic elements selected from the group of alkali metal, alkaline earth metal, and transition metals. Also, methods for preparing and using the catalyst composition for producing aliphatic and aromatic hydrocarbons using the catalyst composition.

Claims which contain your search:

1. A catalyst composition comprising cobalt; manganese; hydrophilic silica; and at least one element selected from the group of lanthanum, phosphorus, Fe, Zr, and Zn, wherein the relative molar ratios of the elements comprised in the composition are represented by the formula CoMn_(a)Si_(b)XcM_(d)O_(y )

4. The catalyst composition according to claim 1, wherein X is two elements, wherein the elements are lanthanum and phosphorus, and wherein c for each of lanthanum and phosphorus is from greater than 0 to about 0.005.

6. The catalyst composition according to claim 1, wherein the hydrophilic silica has a pH of 3.7-4.7.

7. The catalyst composition according to claim 1, wherein the hydrophilic silica has a specific surface area of 200 m ^(2)/g to 400 m ^(2)/g.

8. The catalyst composition according to claim 1, wherein X is one element and wherein the element is selected from the group consisting of Fe, Zr, and Zn.

10. The catalyst composition according to claim 1, wherein the catalyst has at least one of lower methane formation, lower carbon dioxide formation, higher activity, higher conversion of syngas, or higher total olefins formation as compared to the same catalyst without the Si _(b )component.

11. A method of producing olefins comprising contacting syngas with the catalyst composition of claim 1.

12. A method for preparing the catalyst composition of claim 1, comprising the steps: (a) preparing a solution of cobalt- and manganese-comprising salts to form a cobalt-manganese-solution; (b) admixing an alkaline solution to the cobalt-manganese-solution to form a precipitate; (c) admixing a hydrophilic silica and a solution of at least one of a lanthanum, phosphorus, Fe, Zr, and Zn salt; and/or a solution of a phosphorus-comprising salt; evaporating any water present therein and drying, and then adding the resulting solid to the solution comprising the precipitate to form a modified precipitate; (d) separating the modified precipitate, washing and drying the modified precipitate to form a dried precipitate; (e) calcining the dried precipitate in air to form a calcined catalyst precursor; and (f) contacting the calcined catalyst precursor with a reducing agent.

14. A process for producing a product stream comprising a mixture of aliphatic and aromatic hydrocarbons, the process comprising contacting the catalyst composition of claim 1 with a syngas mixture.

16. The process according to claim 14, wherein the catalyst composition is in a fixed bed reactor or fluidized bed reactor.

20. A process for producing ethylene and propylene from syngas, the process comprising the steps of a) contacting a syngas with a first catalyst composition to obtain a first product stream comprising ethylene, propylene, and aliphatic hydrocarbons having 4 or more carbon atoms, b) splitting the first product stream into a second product stream comprising at least 90% of the aliphatic hydrocarbons having 4 or more carbon atoms and a third product stream comprising ethylene and propylene, c) separating ethylene and propylene in the third product stream so as to form a first ethylene stream and a first propylene stream, and d) converting the second product stream into a fourth product stream comprising ethylene and/or propylene.

36. The catalyst composition of claim 1, wherein the hydrophilic silica comprises a pyrogenic silica.

26. The process according to claim 20, wherein the first catalyst composition is unsupported and comprises cobalt, manganese, and at least one element selected from the group of lanthanum and phosphorus, wherein the relative molar ratios of the elements in the composition are represented by the formula CoMn_(a)La_(b)P_(c)M_(d)Ox

27. The process according to claim 20, wherein the first catalyst composition comprises cobalt, manganese, hydrophilic silica, and at least one element selected from the group of lanthanum, phosphorus, Fe, Zr, and Zn, wherein the relative molar ratios of the elements in the composition are represented by the formula CoMn_(a)Si_(b)XcM_(d)Oy


Grant
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: LCE-08-2016-2017 | Award Amount: 5.56M | Year: 2016

The FLEDGED project will deliver a process for Bio-based dimethyl Ether (DME) production from biomass. The FLEDGED project will combine a flexible sorption enhanced gasification (SEG) process and a novel sorption enhanced DME synthesis (SEDMES) process to produce DME from biomass with an efficient and low cost process. The primary aim of FLEDGED project is to develop a highly intensified and flexible process for DME production from biomass and validate it in industrially relevant environments. This objective will be accomplished by: - Experimental validation of the flexible SEG process at TRL5; - Experimental validation of the flexible SEDMES process at TRL5; - Evaluation of the full biofuel production chain from energy, environmental, economic, socio-economic and risk point of view; - Preparation of the ground for future exploitation of the results of the project beyond FLEDGED, by including in the consortium industrial partners along the whole biofuel production chain. By combining the SEG and the SEDMES processes, the FLEDGED project will validate a plant concept that: - is characterized by a tremendous process intensification: sorption of CO2 in the gasifier and of water in the DME reactor allows designing an overall process for DME production with only two fundamental steps and with reduced units for syngas conditioning - allows operating with a wide range of biomass feedstocks - will be more efficient than competitive processes and expected to have a lower cost, thanks to the reduced number of components, the avoidance or significant reduction of recycles and the avoidance of energy consuming and costly air separation and CO2 separation units - is capable of producing syngas with tailored composition by adapting the SEG process parameters, which allows coupling with an electrolysis system for converting excess intermittent renewable electricity into a high value liquid fuel


Patent
Neste Oil | Date: 2013-04-24

A method of producing a syngas composition. The method comprises providing a biomass raw-material; feeding the raw-material into a gasification zone, wherein it is gasified by oxygen-blown gasification to produce a syngas composition containing carbon monoxide, carbon dioxide, hydrogen and hydrocarbons along with carbon solids entrained therein; and withdrawing the syngas composition from the gasification zone. According to the invention, the syngas composition withdrawn from the gasification zone is fed into a carbon bed reaction zone; and at least a part of the carbon dioxide is converted into carbon monoxide by a Boudourd reaction. The carbon solids entrained in the syngas can be used as a part of the carbon of the carbon bed where they will take part in the reaction to further increase the conversion of carbon dioxide.

Claims which contain your search:

1. A method of producing a syngas composition, comprising the steps of- providing a biomass raw-material;- feeding the raw-material into a gasification zone, wherein it is gasified by oxygen-blown gasification to produce a syngas composition containing carbon monoxide, carbon dioxide, hydrogen and hydrocarbons along with carbon solids entrained therein; and- withdrawing the syngas composition from the gasification zone;characterized by- feeding the syngas composition withdrawn from the gasification zone into a carbon bed reaction zone; and- converting at least a part of the carbon dioxide of the syngas composition into carbon monoxide.

2. The method according to claim 1, comprising reforming the syngas composition in order to decompose organic impurities contained therein before feeding it into a carbon bed reaction zone, said reforming preferably being carried out thermally or catalytically or by a combination thereof.

3. The method according to claim 2, wherein the feed comprises the gaseous effluent of a reforming step combined with a stream primarily containing carbon dioxide, produced by a process associated with or carried out in conjunction with the process chain for producing and treating syngas.

6. The method according to any of claims 1 to 4, comprising increasing the temperature of the carbon dioxide containing gas to about 1400 to 1600 C, for example by oxygen combustion, in order to achieve thermal reforming of the gas composition before feeding it into the carbon bed reaction zone, and optionally withdrawing carbon monoxide containing gas from the carbon bed reaction zone at a temperature of about 750 to 900 C.

10. The method according to claim 9 or 10, wherein at least a part of the carbon of the carbon bed reaction zone is derived from the carbon solids entrained in the syngas withdrawn from the gasifier, and optionally- the carbon solids entrained in the syngas are fed into the carbon bed reaction zone together with the syngas, or- the carbon solids being separated from the syngas after the gasifier and fed separately into the carbon bed reaction zone.

12. The method according to any of the preceding claims, comprising- converting at least 10 vol-%, preferably 15 to 100 vol-%, of the carbon dioxide of the syngas to carbon monoxide; and/or- reducing the carbon dioxide content of the gas fed into the carbon bed reaction zone by at least 5 %, preferably by at least 7 %, in particular by 10 % by volume or more.

16. The method according to claim 14 or 15, comprising- increasing the hydrogen-to-carbon monoxide molar ratio of the syngas to about 2; feeding the gas thus obtained into a Fischer-Tropsch reaction zone; and converting in the Fischer-Tropsch reactor at least a significant part of the carbon monoxide and hydrogen contained in the syngas into a hydrocarbon composition containing C_(4)-C_(90) hydrocarbons; or- utilizing the gas, which has been subjected to a reduction of carbon dioxide concentration in a carbon bed reaction zone, to methanol synthesis or hydroformulation.

17. The method according to any of the preceding claims, wherein the feed of the carbon bed reaction zone is selected from the group of syngas obtained directly from gasification; syngas which has been reformed; and a combined gas stream comprising syngas and an industrial gas stream formed by carbon dioxide, in particular a carbon dioxide containing stream produced by a process associated with or carried out in conjunction with the process chain for producing and treating syngas.


Grant
Agency: Department of Defense | Branch: Air Force | Program: STTR | Phase: Phase I | Award Amount: 99.96K | Year: 2012

ABSTRACT: As security of fossil fuel sources is diminishing, the generation of synthetic fuels may constitute a significant strategic capability for the USAF. GES and the INL propose novel catalysts and electrochemical cell components for the electroreduction of carbon dioxide to syngas. Catalyst composition will be formulated to optimize both product selectivity and cell efficiency. A preliminary design for a system yielding syngas at a hydrogen-carbon monoxide ratio of 3:1 will be produced. BENEFIT: The efficient electroreduction of carbon dioxide is a potentially critical emissions abatement technology for the future. Carbon dioxide generated from fossil fuels could be captured and utilized in the manufacture of valuable hydrocarbon products, with carbon dioxide capture-credits (or the like) playing significantly into the economics. Our engineered solutions will advance this carbon dioxide utilization technology toward an integrated jet fuel synthesis system for which there is an emerging need in the military arena.


Furler P.,ETH Zurich | Scheffe J.R.,ETH Zurich | Steinfeld A.,ETH Zurich | Steinfeld A.,Paul Scherrer Institute
Energy and Environmental Science | Year: 2012

Solar syngas production from H 2O and CO 2 is experimentally investigated using a two-step thermochemical cycle based on cerium oxide redox reactions. A solar cavity-receiver containing porous ceria felt is directly exposed to concentrated thermal radiation at a mean solar concentration ratio of 2865 suns. In the first endothermic step at 1800 K, ceria is thermally reduced to an oxygen deficient state. In the second exothermic step at 1100 K, syngas is produced by re-oxidizing ceria with a gas mixture of H 2O and CO 2. The syngas composition is experimentally determined as a function of the molar co-feeding ratio H 2O:CO 2 in the range of 0.8 to 7.7, yielding syngas with H 2:CO molar ratios from 0.25 to 2.34. Ten consecutive H 2O/CO 2-splitting cycles performed over an 8 hour solar experimental run are presented. © 2012 The Royal Society of Chemistry.

Document Keywords (matching the query): chemical composition, syngas production, syngas composition.


Grant
Agency: Department of Defense | Branch: Defense Logistics Agency | Program: SBIR | Phase: Phase I | Award Amount: 96.24K | Year: 2015

Sierra Energy proposes to demonstrate the production of low-cost hydrogen from waste-derived syngas. Sierra is currently partnered with the DOD ESTCP Program, and the California Energy Commission (CEC) to build a pilot-scale gasification facility at the garrison at Fort Hunter Liggett (FHL) Syngas is a mixture of H2 and CO and can be used directly for the generation of electricity via a generator. This is the baseline plan for the installation at FHL. However, if the Hydrogen fraction of the syngas is removed and used for higher-value purposes, the revenue potential of the project doubles. This separation of Hydrogen from syngas is possible via several existing technologies. However, it is uncertain which system or combination of systems best suited to this application. Phase I of this proposal seeks to accomplish the preliminary testing of candidate processes for our particular syngas composition, as well as the planning, partnerships and design of the pilot-scale facility to be constructed at FHL in phase II. This addition of hydrogen generation pathway to this demonstration facility significantly leverages the benefit of the existing project. And enables the project to demonstrate that FastOX can produce hydrogen at a significantly lower cost than current alternatives.


Patent
Saudi Basic Industries Corporation | Date: 2011-10-25

The present invention relates to a catalyst composition useful in a process for producing lower olefins from a oxygenate feedstream, a process for producing said catalyst composition and a process for producing lower olefins comprising contacting a oxygenate feedstream with the catalyst composition M_(1)-M_(2)-P/ZSM-5 with an oxygenate-comprising feedstream, wherein M_(1 )is one or more basic species, M_(2 )is one or more redox elements selected from Groups 6-8 of the Periodic Table of Elements and Sn and P is phosphorus, wherein said basic species is a molecular entity forming a weak Lewis base and/or a weak Bronsted base in the catalyst composition. In addition thereto, the present invention relates to an integrated process for producing lower olefins from a feedstream comprising hydrocarbons.

Claims which contain your search:

8. The process according to claim 1, wherein the oxygenate-comprising feedstream is produced by a process comprising: (i) a syngas producing step, wherein a syngas composition is produced by contacting a syngas producing catalyst with a hydrocarbon feedstream comprising hydrocarbons (HC), oxygen (O_(2)) and carbon-dioxide (CO_(2)); and (ii) an oxygenate synthesis step, wherein dimethyl ether (DME), methanol (MeOH) or a mixture thereof is produced by contacting an oxygenate synthesis catalyst with the syngas composition of step (i).

9. The process according to claim 8, wherein the process is an integrated process wherein: the CO_(2 )comprised in the syngas composition produced in step (i) and the CO_(2 )comprised in the oxygenate stream produced in step (ii) is separated and recycled to the hydrocarbon feedstream; the carbon-monoxide (CO) and hydrogen (H_(2)) comprised in the product stream produced in the olefin synthesis step are separated and recycled to the oxygenate synthesis feedstream; and the reaction products other than the lower olefins, carbon-monoxide (CO) and hydrogen (H_(2)) comprised in the product stream produced in the olefin synthesis step are separated and are recycled to the hydrocarbon feedstream.

10. The process according to claim 8, wherein the syngas producing catalyst is a Ni-comprising supported catalyst, preferably selected from the group consisting of Ni/Al _(2)O _(3)-comprising catalyst; Ni/La _(2)O _(2)-comprising catalyst; Ni-/CeO _(2)-comprising catalyst; Ni/ZrO _(2)-comprising catalyst; or a catalyst selected from the group consisting of LaNi/Al _(2)O _(3)-comprising catalyst; CeNi/Al _(2)O _(3)-comprising catalyst; La/Al _(2)O _(3)-comprising catalyst; NiCeZrO _(2)-comprising catalyst; NiZrO _(2)CeO _(2)TiO _(2)-comprising catalyst; and RhCeO _(2)/ZrO _(2)-comprising catalyst.

12. The process according to claim 1, wherein the catalyst composition is prepared by: i) contacting ZSM-5 zeolite with one or more solutions comprising soluble salts of M_(1), soluble salts of M_(2 )and phosphoric acid to modify said ZSM-5 with M_(1), M_(2 )and P; and (ii) drying and calcining the modified ZSM-5 zeolite in an oxygen-comprising atmosphere prior to contacting with an oxygenate-comprising feedstream.

1. A process for producing lower olefin, Comprising: contacting a catalyst composition with an oxygenate-comprising feedstream to produce the lower olefin, wherein the catalyst composition comprises


Patent
Saudi Basic Industries Corporation | Date: 2014-12-10

The invention is directed to a catalyst composition comprising a mesoporous catalyst support and oxides of nickel (Ni), cobalt (Co) and magnesium (Mg).to a process for the production of the catalyst composition and to the use of the catalyst composition for the production of a syngas.

Claims which contain your search:

1. Catalyst composition comprising a mesoporous catalyst support and oxides of nickel (Ni), cobalt (Co) and magnesium (Mg).

2. Catalyst composition according to claim 1, wherein the catalyst support comprisesalumina.

3. Catalyst composition according to claim 1 or 2, wherein the amount of Ni is between 0.01 and 2 mol% relative to the catalyst composition..

4. Catalyst composition according to any one of claims 1-3, wherein the amount of Co is between 0.01 and 2 mol% relative to the catalyst composition..

5. Catalyst composition according to any one of claims 1-4, wherein the amount of Mg is between 0.05 and2.5 mol% relative to the catalyst composition..

6. Catalyst composition according to any one of claims 1-5, wherein lanthanum (La) and/or cerium (Ce) are present in an amount lower than 0.5 mol%.

7. Process for the production of a catalyst composition according to any one of claims 1-6, wherein a solution comprising salts of Ni, Co and Mg is added to a solution comprising) a salt of at least one element from the group consisting of aluminum, silicon, niobium, tantalum, titanium, zirconium, cerium and tin,and a micelle-forming polymer, followed by mixing, heating, drying and calcining at a temperature above 500 C.

11. Use of a catalyst composition according to any one of claims 1-6 in a process for the production of a syngas.

12. Use of a catalyst composition according to claim 11, wherein the process for the production of a syngas is catalytic carbon dioxide reforming of methane (CRM).

13. Use of a catalyst composition according to claim 11 or 12, wherein the gas hourly space velocity is between 1000 to 50,000 cm^(3)g-1^(-1)h^(-1) at a temperature between 500 and 1000 C.


Grant
Agency: NSF | Branch: Standard Grant | Program: | Phase: PROCESS & REACTION ENGINEERING | Award Amount: 150.00K | Year: 2014

Collaborative Research: Use of 13C-labeling and flux modeling to analyze metabolic reactions and gas-liquid mass transfer during syngas fermentations

PI: Ziyou Wen (Iowa State University)

Yinjie Tang (Washington University at St. Louis)

Proposal IDs: 1438042 (Wen), 1438125 (Tang)

Abstract

Sugar-based feedstocks or oil-rich crops are primarily used in today?s biofuel industry. These biofuel production approaches pose a threat to the global food supply. As an alternative, this research will use inexpensive lignocellulosic biomass (e.g., corn stover or switchgrass) as a feedstock for producing biofuel. The conversion process proposed is based on the gasification of the biomass into syngas (mainly CO, CO2 and H2), and the subsequent fermentation of those gaseous molecules into fuels (such as ethanol). The objectives of this project aim to address two important fundamental issues in syngas fermentations: 1. the mass transfer limitations of transporting gaseous substrates (CO, CO2 and H2) into microbes; 2. the bottleneck enzymes in microbes to convert syngas into biofuels. This study will advance the current research on syngas fermentation using methods in systems biology. By linking macroscopic syngas mass transfer conditions to intracellular enzyme reaction rates in biofuel producing microbes, a holistic view of syngas fermentation will be provided. Ultimately, this project will also produce guidelines for developing other gas-to-liquid biorefineries.

Transient 13C techniques and metabolic models will be used to examine syngas mass transfer and biological utilization by Clostridium carboxidivorans. The first task will incorporate 13C tracing to accurately determine gas-liquid mass transfer parameters and analyze their influence on cellular carbon assimilation. The second task will be to develop a flux balance model to predict microbial growth and ethanol production in response to bioreactor control parameters, such as gas flow rate and mixing. The third task will include pilot scale syngas fermentation at the flux-model-predicted conditions. This project will determine the mass transfer coefficient (KLa) of different syngas composition under complex fermentation conditions, and improve the understandings of the bioavailability of gaseous substrates under various bioreactor operations. Meanwhile, 13C-assisted flux balance analysis will also reveal key enzymatic reactions, which control syngas bioconversion into ethanol. The combination of a metabolic flux model with gas-liquid mass transfer dynamics will offer rational approaches for further work in syngas fermentation development. This research is a partnership between Iowa State University and Washington University in St. Louis. The PIs, with their complementary skills, will provide excellent training and interdisciplinary educational opportunities (including summer research, workshop, international studies, etc.) for students to study reaction engineering, bioprocessing, analytical chemistry, and metabolic modeling.


Processes are disclosed for the conversion of biomass to oxygenated organic compound using a simplified syngas cleanup operation that is cost effective and protects the fermentation operation. The processes of this invention treat the crude syngas from the gasifier by non-catalytic partial oxidation. The partial oxidation reduces the hydrocarbon content of the syngas such as methane, ethylene and acetylene to provide advantageous gas feeds for anaerobic fermentations to produce oxygenated organic compounds such as ethanol, propanol and butanol. Additionally, the partial oxidation facilitates any additional cleanup of the syngas as may be required for the anaerobic fermentation. Producer gases and partial oxidation processes are also disclosed.

Claims which contain your search:

1. A partially-oxidized syngas having a Component Composition comprising: (a) hydrogen and carbon monoxide wherein the mole ratio of hydrogen to carbon monoxide is between about 0.4:1 to 1.5:1 and wherein hydrogen and carbon monoxide comprise at least about 70 mole percent of the syngas composition; (b) between about 0.1 and 1.0 mole percent ethane; (c) between about 1 and 50 ppm (mole) acetylene (d) between about 10 and 100 ppm (mole) ethylene; (e) between about 0.1 and 50 ppm (mole) hydrogen cyanide; and (f) between about 3 and 30 mole percent carbon dioxide.

2. The syngas composition of claim 1 in which the mole ratio of hydrogen to carbon monoxide is between about 0.8:1 and 1.3:1.

3. The syngas composition of claim 1 in which hydrogen and carbon monoxide comprise at least about 80 mole percent of the syngas composition on a Component Composition basis.

4. The syngas composition of claim 1 containing between about 10 and 70 ppm (mole) ethylene on a Component Composition basis.

5. The syngas composition of claim 1 in which carbon dioxide comprises on a Component Composition basis at least one of between about 5 and 20 mole % and between about 5 and 15 mole %.

6. The syngas composition of claim 1 containing at least one of at least about 20 ppm (mole) hydrogen sulfide and between about 80 ppm (mole) and 300 ppm (mole) hydrogen sulfide on a Component Composition basis.

7. The syngas composition of claim 1 containing on a Component Composition basis at least one of between about 2 and 100 ppm (mole) benzene and between about 3 and 30 ppm (mole) benzene.

8. The syngas composition of claim 1 containing on a Component Composition basis at least one of between 25 to 65 mole % carbon monoxide and between 35 to 60 mole % carbon monoxide.

9. The syngas composition of claim 1 containing on a Component Composition basis at least one of between 25 to 65 mole % hydrogen and between 35 to 60 mole % hydrogen on a Component Composition basis.

11. The syngas composition of claim 1 containing on a Component Composition basis at least one of between to 1000 ppm (mole) nitric oxide and 0.5 to 50 ppm (mole) nitric oxide.

12. The syngas composition of claim 1 containing on a Component Composition basis at least one of between 0.1 and 15 mole % nitrogen and between 0.2 and 5 mole % nitrogen.

13. The syngas composition of claim 1 containing on a Component Composition basis at least one of between 1 to 500 ppm (mole) of at least one of tars and naphthalene and between 1 to 500 ppm (mole) of at least one of tars and naphthalene.

14. The syngas composition of claim 1 containing on a Component Composition basis at least one of between 0.1 to 25 ppm (mole) carbonyl sulfide and between 0.5 to 20 ppm (mole) carbonyl sulfide.

15. The syngas composition of claim 1 containing on a Component Composition basis at least one of between 10 to 10,000 ppm (mole) ammonia and between 10 to 7,500 ppm (mole) ammonia.

16. The syngas composition of claim 1 containing on a Component Composition basis between 25 to 65 ppm (mole) ammonia 10 to 10,000 ppm (mole) ammonia.

17. The syngas composition of claim 1 containing on a Component Composition basis between 2 to 30 ppm (mole) hydrogen cyanide.

18. The syngas composition of claim 6 containing on a Component Composition basis between 10 and 70 (ppm mole) ethylene, between about 2 and 100 ppm (mole) benzene, between about 2 and 100 ppm (mole) benzene, between 25 to 65 mole % hydrogen, and between 0.5 to 20 ppm (mole) carbonyl sulfide.

19. A partially-oxidized syngas having a Component Composition comprising: (a) hydrogen and carbon monoxide wherein the mole ratio of hydrogen to carbon monoxide is between about 0.4:1 to 1.5:1 and wherein hydrogen and carbon monoxide comprise at least about 70 mole percent of the syngas composition; (b) between about 0.1 and 1.0 mole percent methane; (c) between about 1 and 50 ppm (mole) acetylene (d) between about 10 and 100 ppm (mole) ethylene; (e) between about 0.1 and 30 ppm (mole) hydrogen cyanide; (f) between about 3 and 30 mole percent carbon dioxide; (g) between about 25 and 65 mole percent carbon monoxide; (h) between about 25 and 65 mole percent hydrogen; (i) between about 2 and 100 ppm (mole) benzene; (j) between about 20 and 300 ppm (mole) hydrogen sulfide; and, (k) between about 0.1 and 30 ppm (mole) hydrogen cyanide.

20. A partially-oxidized and cleaned syngas having a Component Composition comprising: (a) hydrogen and carbon monoxide wherein the mole ratio of hydrogen to carbon monoxide is between about 0.4:1 to 1.5:1 and wherein hydrogen and carbon monoxide comprise at least about 70 mole percent of the syngas composition; (b) between about 0.1 and 1.0 mole percent methane; (c) between about 0.1 and 100 ppm (mole) acetylene (d) between about 0.1 and 50 ppm (mole) ethylene; (e) between about 0.001 and 2 ppm (mole) hydrogen cyanide; and (f) between about 1 and 20 mole percent carbon dioxide.