Örnsköldsvik, Sweden
Örnsköldsvik, Sweden

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Grant
Agency: European Commission | Branch: H2020 | Program: BBI-IA-DEMO | Phase: BBI.VC1.D2 | Award Amount: 18.50M | Year: 2015

ValChem demonstrates the technical and economic viability of sustainable and integrated process from wood to a selected platform chemical and lignin based performance chemicals. ValChem will demonstrate that this process can produce wood-based chemicals that are competitive with identical or similar-in-application products based on fossil raw materials in terms of quality and production cost. ValChem utilizes existing demonstration plants of the project partners. All process parts have been demonstrated at least in pilot scale before. Wood to sugars and crude lignin process has been verified in demonstration scale for ethanol production, but in this project it will be combined with sugar to platform chemical process, for which the company has been using first generation sugars so far. Crude lignin from wood disintegration process will be upgraded to be suitable for reactive applications (different types of reactive resins). The process will demonstrate the valorization of over 75 % of the wood raw material. Pre-marketing and application tests are done at potential customers. Lignin based performance chemicals focus is in high value added reactive applications (value >6 times higher than lignin energy value). The largest markets for the targeted platform chemical are unsaturated polyester resins, paints and coatings, and industrial (heat-transfer and de-icing) and personal care (value 2-3 times higher than current products). Potential plants based on this technology will be located in rural areas due to feedstock availability. Only sustainably sourced wood will be used. The sustainable forestry and wood-harvesting will be proven by internationally accepted PEFC and FSC certificates. The ValChem project will be a boost in the Biobased chemical development and open up for further actors to invest in and continue the development for a sustainable industrial sector.


The present invention relates to a method of production of a target chemical from a cellulosic material, comprising the steps of:a) pretreating the cellulosic material under overpressure;b) releasing pressure to obtain pretreated cellulosic material and flash steam;c) hydrolyzing and fermenting the pretreated cellulosic material to obtain a liquid containing the target chemical; andd) distilling the liquid from step c) to obtain a first target chemical stream and a first stillage stream,wherein at least part of the flash steam from step b) is supplied as direct steam in the distillation of step d).


There is provided a method of producing a hydrolysate containing sugar from a lingocellulosic biomass, comprising the steps of: a) pretreating the lingocellulosic biomass in a pretreatment process to form a slurry comprising cellulosic particles; b) saccharification of the slurry obtained in step a) in the presence of hydrolytic enzymes in an enzymatic hydrolysis process to obtain a hydrolysate containing sugar; c) analyzing cellulosic particles present in the slurry obtained in step a) and/or cellulosic particles present in the enzymatic hydrolysis process during step b) using an image analysis method to obtain a data set; and d) controlling at least one process parameter of the pretreatment process in step a) and/or enzymatic hydrolysis process in step b) in response to the data set obtained in step c). A corresponding system is also provided.


Patent
Sekab E Technology AB | Date: 2013-02-27

There is provided a method of producing ethanol from a saccharide-containing solution/suspension by fermentation, i.e. by use of fermenting agents, wherein the saccharide-containing solution/suspension that is subjected to fermentation is constituted by a mixture of material flows from at least two saccharide recovery processes, each process being based on separate raw materials in the form of lignocellulosic material A, starch-rich material B and sugar-rich material C, and said saccharide material A derived from lignocellulosic material always being part of the mixture, characterised in that the amount of solution/suspension containing the saccharide material A that is added to be comprised in the mixture is controlled to stress the fermenting agent, resulting in an ethanol yield increase to the extent that a stress factor exceeding 1 and amounting to at most 1.25 is obtained, wherein the stress factor is defined as the ratio between the fermentability (measured according to a standard method) of the saccharide material mixture and the fermentability (measured according to a standard method) of the saccharide material according to B and/or C.


There is provided a method of producing a hydrolysate containing sugar from a lingocellulosic biomass, comprising the steps of:a) pretreating the lingocellulosic biomass in a pretreatment process to form a slurry comprising cellulosic particles;b) saccharification of the slurry obtained in step a) in the presence of hydrolytic enzymes in an enzymatic hydrolysis process to obtain a hydrolysate containing sugar;c) analyzing cellulosic particles present in the slurry obtained in step a) and/or cellulosic particles present in the enzymatic hydrolysis process during step b) using an image analysis method to obtain a data set; andd) controlling at least one process parameter of the pretreatment process in step a) and/or enzymatic hydrolysis process in step b) in response to the data set obtained in step c). A corresponding system is also provided.


Grant
Agency: European Commission | Branch: H2020 | Program: IA | Phase: FTIPilot-1-2015 | Award Amount: 3.34M | Year: 2015

The ReTAPP project aims at producing hardwood-based fructose for production of plastic bottles and all plastic packaging. The ReTAPP project will generate fructose from hardwood to commercial process as a replacement for food/starch based fructose. The fructose is further converted to 5-hydroxymethylfurfural (5-HMF) a chemical that can be used to produce a biobased polymer, Polyethylene Furanoate (PEF). Ultimately, ReTAPP will make it possible to make the plastics from wood a solution not just sustainable and 100% renewable, but also technically and economically superior to the technologies and materials used today. In ReTAPP, the consortium will improve the processes through enzymatic solutions to positively impact quality, performance and economics: In the end, the wood-based fructose must be better than food-based fructose for further in chemical conversion in industrial scale. Even more importantly, the overall process, including but not limited to the fructose conversion, is also made economically more sustainable than the petroleum or the food-based solutions. Ultimately, the 100% renewable packaging is more affordable and has better qualities, such as barrier properties, than the most common thermoplastic resin: polyethylene terephthalate (PET). ReTAPP enables the collaboration between consortium members to address the entire value-chain and achieve objectives none of the companies could achieve alone. European competitive advantage can be found in strength of collaboration between masters of their field, such as MetGen, SEKAB and Avantium.


Patent
Sekab E Technology AB | Date: 2014-03-05

The present invention provides a method for decreasing the fermentation inhibition in a process for producing a target chemical from a pretreated cellulosic material, the process comprising enzymatic hydrolysis of the pretreated cellulosic material and fermentation of hydrolysed material, wherein the fermentation inhibitory properties of the material subjected to fermentation is decreased by an addition of at least one reducing agent to the pretreated material or hydrolysed material, and wherein said reducing agent is dithionite. Moreover, the present invention provides the use of dithionite for decreasing the fermentation inhibitory properties of a material being subjected to simultaneous enzymatic hydrolysis and fermentation.


The present invention relates to a method of enzymatic hydrolysis of a lignocellulosic material, comprising the steps of:a) pretreating the lignocellulosic material to obtain a slurry having a pH of less than 6;b) adding NaOH, Ca(OH)_(2) and/or CaO to the slurry to increase its pH to at least 8, said addition being carried out at a slurry temperature of at least 60 C;c) reducing the pH of the slurry to below 7; and optionally cooling the slurry from step b) to a temperature below 60 C; andd) adding hydrolytic enzymes to the slurry from c) and allowing the slurry to hydrolyze.


Patent
Sekab E Technology AB | Date: 2014-04-29

A method of pre-treating a cellulosic material before hydrolysis is provided. The method comprises the steps of: impregnating the cellulosic material with a reactive water-soluble gas, such as sulphur dioxide (SO_(2)) or carbon dioxide (CO_(2)), in an impregnation chamber to obtain impregnated material; and heating the impregnated material to obtain pre-treated material, wherein the cellulosic material is compressed right before or when it is transferred to the impregnation chamber. A corresponding system is also provided.


The present invention relates to a method of enzymatic hydrolysis of a lignocellulosic material, comprising the steps of:a) pretreating the lignocellulosic material to obtain a slurry having a pH of less than 6;b) adding NaOH, Ca(OH)_(2) and/or CaO to the slurry to increase its pH to at least 8, said addition being carried out at a slurry temperature of at least 60 C;c) reducing the pH of the slurry to below 7; and optionally cooling the slurry from step b) to a temperature below 60 C; andd) adding hydrolytic enzymes to the slurry from c) and allowing the slurry to hydrolyze.

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