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公开(公告)号：AU2012336413B2
公开(公告)日：2016-12-01
申请号：AU2012336413
申请日：2012-11-08
Applicant: RENMATIX INC
Inventor： CARLIUS ANDERS , GRAM ANDREAS , GRANATH CORINNE , JOHANNESSON HAUKUR , KARLSSON GORAN
Abstract: The present invention relates to regulation of the p H of a liquefaction process. Presented is a method for treatment of a biomass feedstock wherein the biomass feedstock is subjected to liquefaction, at a p H of at most 4, by treatment with hot compressed liquid water (HCW) at subcritical and/or supercritical conditions to improve the conversion efficiency. The present invention is also directed to quenching of a liquefaction process according to above, preventing, minimizing or eliminating clogging and/or fouling of sticky biomass components in process equipment during processing as according to above, and to the use of additives in a biomass liquefaction process.
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公开(公告)号：AU2013257301A1
公开(公告)日：2014-11-27
申请号：AU2013257301
申请日：2013-04-30
Applicant: RENMATIX INC
Inventor： JOHANNESSON HAUKUR , GRAM ANDREAS , CARLIUS ANDERS , KARLSSON GORAN
Abstract: The present invention describes a process involving liquefaction of a biomass slurry by treatment in hot compressed water (HCW), said process comprising: -a first decomposition step being performed at an average pH level of at most 4.5, wherein a hemicellulose fraction in the biomass slurry is decomposed to water soluble mono-and/or oligomers, and wherein a cellulose fraction undergoes a pre-treatment for decrystallization of the cellulose polymer; -a separation step; and -a second decomposition step, wherein the cellulose fraction in the biomass slurry is decomposed to water soluble mono-and/or oligomers; wherein both of the first and second decomposition steps are performed at sub-critical temperatures implying relatively moderate conditions.
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公开(公告)号：CA2887060A1
公开(公告)日：2014-05-15
申请号：CA2887060
申请日：2013-11-08
Applicant: RENMATIX INC
Inventor： CARLIUS ANDERS , GRAM ANDREAS , KARLSSON GORAN , JOHANNESSON HAUKUR , WERNER TORSTEN
Abstract: The present invention describes a process for quenching a hydrothermal, dilute acid hydrolysis reaction of a biomass feedstock, wherein degradation of an aqueous monomer and/or oligomer sugar mixture is slowed down or stopped by flash cooling of the aqueous monomer and/or oligomer sugar mixture, and wherein the flash cooling ensures that a fraction of dissolved and volatile degradation byproducts are removed by a forming vapor stream, and wherein a lignin component, if present, is solidified into a structure with good de-watering characteristics, allowing for subsequent removal of the lignin component by separation, said process resulting in a hydrolyzed solution of sugar monomers and/or oligomers.
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公开(公告)号：CA2907664A1
公开(公告)日：2013-11-07
申请号：CA2907664
申请日：2013-04-30
Applicant: RENMATIX INC
Inventor： JOHANNESSON HAUKUR , GRAM ANDREAS , CARLIUS ANDERS , KARLSSON GORAN
Abstract: The present invention describes a process involving liquefaction of a biomass slurry by treatment in hot compressed water (HCW), said process comprising: -a first decomposition step being performed at an average pH level of at most 4.5, wherein a hemicellulose fraction in the biomass slurry is decomposed to water soluble mono-and/or oligomers, and wherein a cellulose fraction undergoes a pre-treatment for decrystallization of the cellulose polymer; -a separation step; and -a second decomposition step, wherein the cellulose fraction in the biomass slurry is decomposed to water soluble mono-and/or oligomers; wherein both of the first and second decomposition steps are performed at sub-critical temperatures implying relatively moderate conditions.
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