PROCESS FOR DEHYDRATION OF ETHANOL TO ETHYLENE AT LOW ENERGY CONSUMPTION
    1.
    发明申请
    PROCESS FOR DEHYDRATION OF ETHANOL TO ETHYLENE AT LOW ENERGY CONSUMPTION 有权
    乙醛在低能耗下脱乙苯的方法

    公开(公告)号:US20150299068A1

    公开(公告)日:2015-10-22

    申请号:US14646877

    申请日:2013-11-18

    IPC分类号: C07C1/24 C07C41/09

    摘要: A process for dehydration of an ethanol feedstock to ethylene by: a) preheating ethanol feedstock by heat exchange with effluent from e), b) pretreating the ethanol feedstock to produce pretreated ethanol feedstock, c) vaporizing a vaporization feedstock containing pretreated ethanol feedstock and at least a portion of the flow of treated water recycled in an exchanger to produce a vaporized feedstock, d) compressing said vaporized feedstock to produce a compressed feedstock, e) dehydrating said compressed feedstock in at least one adiabatic reactor, f) separating the effluent from the last adiabatic reactor of e) into an effluent containing ethylene and an effluent containing water, g) purifying at least a portion of the effluent containing water from 0 and separating at least one flow of treated water and at least one flow of unconverted ethanol, h) recycling at least a portion of the flow of treated water from g) upstream of c).

    摘要翻译: 乙醇原料通过以下方法脱乙醇的方法:a)通过与来自e)的流出物热交换来预热乙醇原料,b)预处理乙醇原料以产生经预处理的乙醇原料,c)蒸发含有经预处理的乙醇原料的蒸发原料, 在交换器中再循环的经处理水的至少一部分流动以产生蒸发的原料,d)压缩所述蒸发的原料以产生压缩原料,e)使至少一个绝热反应器中的所述压缩原料脱水,f)将流出物从 将e)的最后绝热反应器装入含有乙烯和含水的流出物的流出物中,g)将至少一部分含有水的流出物从0中纯化并分离至少一个处理水流和至少一个未转化的乙醇流, h)从c)上游再循环处理水流的至少一部分。

    PROCESS FOR PURIFICATION OF CO2 IN AN ETHYLENE STREAM OBTAINED FROM THE DEHYDRATION OF ETHANOL
    2.
    发明申请
    PROCESS FOR PURIFICATION OF CO2 IN AN ETHYLENE STREAM OBTAINED FROM THE DEHYDRATION OF ETHANOL 有权
    从乙醇脱氢获得的乙烯流中的二氧化碳的净化过程

    公开(公告)号:US20150353443A1

    公开(公告)日:2015-12-10

    申请号:US14760827

    申请日:2014-01-10

    IPC分类号: C07C1/24

    CPC分类号: C07C1/24 C07C11/04

    摘要: Process for the production of ethylene from an ethanol feedstock that comprises these stages: a) dehydration to produce at least ethylene and water effluents, b) partial condensation of said ethylene effluent, c) separating phases of said partially condensed ethylene effluent to produce gas and liquid effluents, d) compression of said gas effluent to produce compressed gas effluent, e) washing said compressed gas effluent by contact with the recycled washing water of stage h) to produce washed gas and waste water effluents, f) absorption of said washed gas effluent by contact with at least an absorbent solution to produce purified gas effluent, g) distilling said waste water effluent and, jointly, said water effluent from said dehydration stage to produce at least gas distillate, liquid distillate, purified water effluent, and distillation residue, h) recycling, as washing water, at least a portion of said purified water effluent upstream from the washing stage e).

    摘要翻译: 从包括以下阶段的乙醇原料生产乙烯的方法:a)脱水以产生至少乙烯和水流出物,b)所述乙烯流出物的部分缩合,c)分离所述部分冷凝的乙烯流出物的相以产生气体和 液体流出物,d)压缩所述气体流出物以产生压缩气体流出物; e)通过与步骤h)的再循环洗涤水接触来洗涤所述压缩气体流出物,以产生洗涤的气体和废水流出物,f)吸收所述洗涤气体 流出物通过与至少一种吸收剂溶液接触以产生净化的气体流出物,g)将所述废水流出物和所述脱水阶段的所述水流出物共同蒸馏以产生至少气体馏出物,液体馏出物,净化水流出物和蒸馏残余物 ,h)作为洗涤水回收洗涤阶段e)上游的所述净化水流出物的至少一部分。

    PROCESS FOR THE PRODUCTION OF ALCOHOLS AND/OR SOLVENTS FROM LIGNOCELLULOSIC BIOMASS WITH WASHING OF THE SOLID RESIDUE OBTAINED AFTER HYDROLYSIS
    4.
    发明申请
    PROCESS FOR THE PRODUCTION OF ALCOHOLS AND/OR SOLVENTS FROM LIGNOCELLULOSIC BIOMASS WITH WASHING OF THE SOLID RESIDUE OBTAINED AFTER HYDROLYSIS 有权
    水解后获得的固体残留物的洗涤用于生产液体生物质的醇和/或溶剂的方法

    公开(公告)号:US20140256012A1

    公开(公告)日:2014-09-11

    申请号:US14197619

    申请日:2014-03-05

    IPC分类号: C12P7/14

    摘要: The process for the production of alcohol and/or solvent from a biomass feedstock comprises the stages for pretreatment (P) of the biomass feedstock, for enzymatic hydrolysis (H) of the pretreated substrate, and for fermenting the hydrolyzate (F).To reduce the size of the fermenters, at least a portion of the solid residue contained in the hydrolyzate is extracted (Ex1) in such a way as to obtain a stream of solid residue (9) comprising lignin and a hydrolyzate (8) that is low in solid residue. Then, the stream of solid residue is washed (L) with a liquid stream in such a way as to recover a sugar-enriched liquid stream (15). The sugar-enriched liquid stream (15) is recycled in the enzymatic hydrolysis stage (H) to be able to upgrade the sugars without providing dilution of the streams in the process.

    摘要翻译: 从生物质原料生产醇和/或溶剂的方法包括生物质原料的预处理(P),预处理底物的酶水解(H)和发酵水解产物(F)的阶段。 为了减小发酵罐的尺寸,提取水解产物中含有的至少一部分固体残余物(Ex1),以获得包含木质素和水解产物(8)的固体残余物(9),即 固体残渣少。 然后,用液体流洗涤固体残余物流(L),以回收富含糖的液体流(15)。 富含糖的液体流(15)在酶水解阶段(H)中再循环,以便能够在不提供该过程中的流的稀释的情况下升级糖。

    METHOD FOR PRODUCING ALCOHOLS AND/OR SOLVENTS FROM LIGNOCELLULOSIC BIOMASS WITH WASHING OF THE SOLID RESIDUE OBTAINED AFTER FERMENTATION
    5.
    发明申请
    METHOD FOR PRODUCING ALCOHOLS AND/OR SOLVENTS FROM LIGNOCELLULOSIC BIOMASS WITH WASHING OF THE SOLID RESIDUE OBTAINED AFTER FERMENTATION 有权
    通过发酵后获得的固体残留物洗涤从生物质生物质中生产酒精和/或溶剂的方法

    公开(公告)号:US20160017380A1

    公开(公告)日:2016-01-21

    申请号:US14772911

    申请日:2014-02-06

    IPC分类号: C12P7/14 C12P7/10

    摘要: The process for the production of alcohol and/or solvent from a biomass feedstock comprises the stages for pretreatment (P) of the biomass feedstock, for enzymatic hydrolysis (H1 and HF), and for fermenting the hydrolyzate (HF). To prevent solids from being sent and to facilitate operating the section for purifying the fermentation products, at least a portion of the solid material in the fermentation wine is extracted (Ex1) to obtain a stream of solid residue (11) comprising lignin and a fermentation wine (12) that is low in solid material. Then, the stream of solid residue is washed (L) with a liquid stream to recover a liquid stream that is enriched with fermentation products (16). The liquid stream that is enriched with fermentation products (16) is recycled in the enzymatic hydrolysis stage (H1) to recover any fermentation product and to increase the overall yield of the process.

    摘要翻译: 从生物质原料生产醇和/或溶剂的方法包括生物质原料的预处理(P),酶水解(H1和HF)和发酵水解产物(HF)的阶段。 为了防止固体被送出并促进操作该部分用于纯化发酵产物,提取发酵酒中至少一部分固体物质(Ex1)以获得包含木质素和发酵的固体残渣物流(11) 酒(12)固体材料低。 然后,用液体流洗涤固体残余物(L),以回收富含发酵产物的液体物流(16)。 富含发酵产物(16)的液体物流在酶水解阶段(H1)中再循环,以回收任何发酵产物并提高该方法的总产率。