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    METHODS AND SYSTEMS FOR PROCESSING CELLULOSIC BIOMASS
    21.
    发明申请
    METHODS AND SYSTEMS FOR PROCESSING CELLULOSIC BIOMASS 审中-公开

    公开(公告)号：US20160184734A1

    公开(公告)日：2016-06-30

    申请号：US14980589

    申请日：2015-12-28

    Applicant: SHELL OIL COMPANY

    Inventor： Joseph Broun Powell ,  Glenn Charles Komplin ,  Juben Nemchand Chheda

    IPC: B01D11/04 ,  B01J19/24 ,  B01D3/06 ,  B01J8/18

    CPC classification number: B01D11/04 ,  B01D3/06 ,  B01J8/18 ,  B01J19/24 ,  B01J2219/24 ,  C10G1/002 ,  C10G1/065 ,  C10G1/083 ,  C10G3/50 ,  Y02P30/20

    Abstract: Separation of a product of digestion of cellulosic biomass solids may be challenging due to the various components contained therein. Methods and systems for processing cellulosic biomass, particularly a reaction product of a hydrothermal reaction containing lignin-derived products, such as phenolics, comprise providing the reaction product to a separation zone comprising a liquid-liquid extraction unit. The liquid-liquid extraction unit can provide an aqueous portion and a non-aqueous portion, where these portions can be separated into various fractions individually. For example, desirable compounds in the aqueous portion and non-aqueous portion can be recovered from the portions individually and optionally combined to be further processed into a fuels product. Heavier components in the aqueous portion and non-aqueous portion can be recovered from the portions individually and used in the process, such as phenolics that can be used as a digestion solvent.

    PROCESS FOR THE PRODUCTION OF DIGESTED BIOMASS USEFUL FOR CHEMICALS AND BIOFUELS
    22.
    发明申请
    PROCESS FOR THE PRODUCTION OF DIGESTED BIOMASS USEFUL FOR CHEMICALS AND BIOFUELS 审中-公开
    生产用于化学和生物燃料的生物质生物量的方法

    公开(公告)号：US20140024093A1

    公开(公告)日：2014-01-23

    申请号：US13851357

    申请日：2013-07-25

    Applicant: SHELL OIL COMPANY

    Inventor： Robert Lawrence Blackbourn ,  Juben Nemchand Chheda ,  Evert Van Der Heide ,  Paul Richard Weider

    IPC: D21C3/20 ,  C12P7/18

    CPC classification number: D21C3/20 ,  C08H6/00 ,  C08H8/00 ,  C12P7/10 ,  C12P7/18 ,  C12P2201/00 ,  D21C1/04 ,  D21C3/02 ,  Y02E50/16

    Abstract: In the pretreatment, the biomass is contacted with a solution containing at least one α-hydroxysulfonic acid thereby at least partially hydrolyzing the biomass to produce a pretreated stream containing a solution that contains at least a portion of hemicelluloses and a residual biomass that contains celluloses and lignin; separating at least a portion of the solution from the residual biomass providing an solution stream and a pretreated biomass stream; then contacting the pretreated biomass stream with a cooking liquor containing at least one alkali selected from the group consisting of sodium hydroxide, sodium carbonate, sodium sulfide, potassium hydroxide, potassium carbonate, ammonium hydroxide, and mixtures thereof and water. A process that allows for higher recovery of carbohydrates and thereby increased yields is provided. Alcohols useful as fuel compositions are also produced from biomass by pretreating the biomass prior to hydrolysis and fermentation.

    Abstract translation: 在预处理中，生物质与含有至少一种α-羟基磺酸的溶液接触，从而至少部分水解生物质，以产生含有至少一部分半纤维素和含有纤维素的残余生物质的溶液的预处理物流， 木质素 从所述剩余生物质中分离出至少一部分所述溶液以提供溶液流和预处理的生物物流; 然后将预处理的生物物流与含有选自氢氧化钠，碳酸钠，硫化钠，氢氧化钾，碳酸钾，氢氧化铵及其混合物和水中的至少一种碱的蒸煮液接触。 提供了允许更高碳水化合物回收率并从而提高产量的方法。 用作燃料组合物的醇也可以通过在水解和发酵之前预处理生物质从生物质产生。

    Process for the recovery of furfural
    23.
    发明授权
    Process for the recovery of furfural 有权

    公开(公告)号：US10584107B2

    公开(公告)日：2020-03-10

    申请号：US16346398

    申请日：2017-10-30

    Applicant: SHELL OIL COMPANY

    Inventor： Juben Nemchand Chheda ,  Charu Ehrenreich-Gureja ,  Jean Paul Andre Marie Joseph Ghislain Lange

    IPC: C07D307/02 ,  C07D307/50 ,  C07D307/48

    Abstract: Disclosed is a process for the extraction of furfural which includes: (a) subjecting a composition comprising furfural, water, at least one acid and an aromatic solvent, with a boiling point higher than that of furfural, to a first separation step providing: (i) an organic phase, and (ii) an aqueous phase; (b) subjecting the aqueous phase of step (a) to a first distillation step to provide: (i) a first in top stream comprising a furfural-water azeotrope; (c) subjecting the first top stream of step (b) to a second separation step to provide: (i) a second top stream comprising a portion of the furfural-water azeotrope; (d) subjecting the second top stream of step (c) to a second distillation step to provide: (i) a third top stream enriched with the furfural-water azeotropic mixture; (e) subjecting the organic phase of step (a) to a third distillation step to provide: a fourth top stream comprising furfural.

    Process for preparing furfural from biomass
    24.
    发明授权
    Process for preparing furfural from biomass 有权

    公开(公告)号：US10138218B2

    公开(公告)日：2018-11-27

    申请号：US15502897

    申请日：2015-08-13

    Applicant: SHELL OIL COMPANY

    Inventor： Juben Nemchand Chheda ,  Paul Richard Weider ,  Robert Lawrence Blackbourn ,  Jean Paul Andre Marie Joseph Ghislain Lange

    IPC: C07D307/50

    Abstract: Furfural is produced from biomass material containing pentosan, in high yields, in a production process comprising treating the biomass with a solution containing at least one α-hydroxysulfonic acid thereby hydrolyzing the biomass to produce a product stream containing at least one C5-carbohydrate compound in monomeric and/or oligomeric form, and dehydrating the C5-carbohydrate compound in the presence of a heterogeneous solid acid catalyst, in a biphasic reaction medium comprising an aqueous phase and a water-immiscible organic phase, at a temperature in the range of from about 100° C. to about 250° C. to produce a dehydration product stream containing furfural. An aqueous stream is separated from the dehydration product, which can be optionally recycled to the hydrolysis step.

    Closed-loop production of furfural from biomass
    25.
    发明授权
    Closed-loop production of furfural from biomass 有权

    公开(公告)号：US10005749B2

    公开(公告)日：2018-06-26

    申请号：US15502808

    申请日：2015-08-13

    Applicant: SHELL OIL COMPANY

    Inventor： Juben Nemchand Chheda ,  Jean Paul Andre Marie Joseph Ghislain Lange

    IPC: C07D307/50

    CPC classification number: C07D307/50 ,  C07D307/48

    Abstract: Methods and processes for the production of valuable organic products and alcohols from biomass material using a closed-loop process having numerous advantages over prior production methods are described. In the process, the biomass is subjected to acid-catalyzed digestion, followed by a separation of the digestion product stream into a solid product stream and a liquid product stream, the liquid product stream thereafter undergoing acid-catalyzed dehydration in the presence of an organic solvent, and thereafter separating the organic products in the organic layer from the aqueous layer. During the process, aqueous and organic fluid streams are fed back into various portions of the production process to increase the concentration of active portions and maximize product recovery.

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