Iogen Corporation

Ottawa, Canada

Iogen Corporation

Ottawa, Canada

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The present invention provides a process for producing one or more products for use as a transportation or heating fuel. In various embodiments the process comprises treating a cellulosic feedstock, in one or more processing steps that release extractives from the feedstock. A solids-liquid separation is subsequently conducted on the process stream comprising the extractives and solids. An aqueous stream comprising one or more of the extractives may be fed to an anaerobic digester to produce crude biogas from which one or more impurities may optionally be removed. In various embodiments the process further comprises providing a solids stream to a thermal process. A product produced or derived from the thermal process may displace a product made from fossil fuel. One or more products obtained or derived from at least one of the foregoing process steps are provided for use as a transportation or heating fuel. In various embodiments the process enables advantaged fuel credit generation.


The present disclosure provides a process for forming a biogenic carbon-based fuel or a fuel intermediate from biogenic carbon dioxide and hydrogen. The hydrogen is sourced from a process that produces hydrogen and fossil carbon dioxide from a fossil-fuel hydrocarbon and separates the fossil carbon dioxide from the hydrogen. The process may further comprise carrying out or arranging for one or more parties to carry out at least one step that contributes to a reduction in the GHG emissions of the biogenic carbon-based fuel, or a fuel made from the fuel intermediate, of at least 20% relative to a gasoline baseline. In various embodiments this includes (a) introducing the fossil carbon dioxide underground, and/or (b) using a biogenic carbon-based product selected from a chemical and energy product produced from the non-fossil organic material to displace the use or production of a corresponding fossil-based product.


Patent
Iogen Corporation | Date: 2015-07-22

A process is provided for forming a fuel or a fuel intermediate from two fermentations that includes feeding an aqueous solution comprising a fermentation product from a first bioreactor to a second bioreactor and/or a stage upstream of the second bioreactor, which also produces the fermentation product. The aqueous solution may be added at any stage of the second fermentation and/or processing steps upstream from the second bioreactor that would otherwise require the addition of water. Accordingly, the product yield is increased while fresh/treated water usage is decreased.


The present invention provides a process for producing a fermentation product from a lignocellulosic feedstock. The process comprises soaking a lignocellulosic feedstock in an aqueous solution to produce a soaked feedstock. The soaked feedstock is at least partially dewatered and the at least partially dewatered feedstock is subjected to pretreating in the presence of sulfur dioxide, sulfurous acid or a combination thereof to produce a pretreated feedstock composition. The pretreated feedstock composition is fed to an enzymatic hydrolysis in which the concentration of dissolved solids fed to the enzymatic hydrolysis is at least 50% (w/w) of the concentration of dissolved solids in the pretreated feedstock composition. The cellulose in the pretreated feedstock composition is hydrolyzed with cellulase enzymes in the presence of the dissolved solids to produce glucose. The glucose is fermented to produce the fermentation product.


The present invention provides a process for producing one or more products for use as a transportation or heating fuel. In various embodiments the process comprises treating a cellulosic feedstock in one or more processing steps that release extractives from the feedstock. A solids-liquid separation is subsequently conducted on the process stream comprising the extractives and solids. An aqueous stream comprising one or more of the extractives may be fed to an anaerobic digester to produce crude biogas from which one or more impurities may optionally be removed. In various embodiments the process further comprises providing a solids stream to a thermal process. A product produced or derived from the thermal process may displace a product made from fossil fuel. One or more products obtained or derived from at least one of the foregoing process steps are provided for use as a transportation or heating fuel. In various embodiments the process enables advantaged fuel credit generation.


Patent
Iogen Corporation | Date: 2015-09-09

The present invention provides an integrated process for producing a fermentation product from fossil carbon and hydrogen present in a purge gas stream resulting from a hydrogen production process. According to one embodiment of the invention, a purge gas stream obtained from a hydrogen production process is fermented with microorganisms in one or more bioreactors to produce the fermentation product. A fermentation exhaust gas stream from the one or more bioreactors comprising hydrogen, carbon monoxide and/or methane is then obtained and heat is generated therefrom to provide energy for the hydrogen production process.


The present invention provides a process for producing a fuel and a byproduct from biomass or biomass derived material. The invention comprises providing a processed biomass feedstock and carrying out or causing one or more parties to subject the processed biomass feedstock to gasification to produce carbon monoxide and hydrogen and cresylic acid and recovering the cresylic acid or a portion thereof. The processed biomass feedstock may be co-gasified with coal. The hydrogen from the gasification may be recovered or the carbon monoxide and hydrogen may be further reacted to produce a fuel or fuel intermediate. One or more products obtained from the process are provided, for use as, or to produce a transportation or heating fuel. The invention may allow for advantaged fuel credit generation.


Patent
Iogen Corporation | Date: 2016-02-05

Embodiments of the invention provide a process in which a gas comprising biomethane having a heating value of less than about 925 BTU/cubic foot is introduced to a pipeline system that is connected to at least one source of natural gas having a heating value of at least about 950 BTU/cubic foot. The gas comprising biomethane combines with natural gas in the pipeline system to produce a mixed gas having a heating value below about 925 BTU/cubic foot. An amount of natural gas at least equal to the amount of gas comprising biomethane is withdrawn from the pipeline system for use as a transportation fuel, a fuel intermediate or as a feedstock for producing a fuel. The process can enable fuel credit generation and/or reductions in life cycle greenhouse gas emissions.


Patent
Iogen Corporation | Date: 2015-12-17

Embodiments of the invention provide a process in which a gas comprising biomethane having a heating value of about 350-950 BTU/cubic foot is introduced to a pipeline system at a combination point that is downstream of natural gas in the pipeline system having a heating value of at least about 950 BTU/cubic foot. This produces a mixed gas downstream of the combination point. At least a portion of the mixed gas downstream of the combination point is withdrawn for use by a user that combusts the mixed gas to generate heat and/or electricity. A corresponding amount of natural gas is withdrawn at an upstream location for use as a transportation fuel, a fuel intermediate or as a feedstock for producing a fuel. The process can enable fuel credit generation.


Patent
Iogen Corporation | Date: 2015-12-18

Embodiments of the invention provide a process in which a gas comprising biomethane having a heating value of less than about 925 BTU/cubic foot is introduced to a pipeline system that is connected to at least one source of natural gas having a heating value of at least about 950 BTU/cubic foot. The gas comprising biomethane combines with natural gas in the pipeline system to produce a mixed gas having a heating value below about 925 BTU/cubic foot. An amount of natural gas at least equal to the amount of gas comprising biomethane is withdrawn from the pipeline system for use as a transportation fuel, a fuel intermediate or as a feedstock for producing a fuel. The process can enable fuel credit generation and/or reductions in life cycle greenhouse gas emissions.

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