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    • 4. 发明授权
    • Process for the production of ethanol and butanol
    • 生产乙醇和丁醇的方法
    • US08586335B2
    • 2013-11-19
    • US12736101
    • 2009-02-19
    • Peter Simpson BellStephen John BensteadNeil Turnbull
    • Peter Simpson BellStephen John BensteadNeil Turnbull
    • C12P7/40
    • C12P7/14C12P7/065C12P7/08C12P7/16Y02E50/10Y02E50/17
    • The present invention relates to a process for the production of ethanol and butanol from biomass, and in particular to a process for the production of ethanol and butanol using two separate fermentation steps, said process comprising: a) passing a biomass feedstock to a first fermentation step, b) in said first fermentation step subjecting the biomass feedstock to anaerobic fermentation at a pH below 6.0 and at a temperature in the range 20 to 700° C. and so as to convert the biomass to a product predominantly comprising acetic acid and butyric acid with at least a 2:1 ratio by weight of acetic acid to butyric acid, c) treating the product stream of step (b) to separate a solution comprising the acetic acid and butyric acid by: (i) separating a solution comprising the acetic acid and butyric acid from any residual solids and (ii) separating bacteria and/or pasteurising or sterilising the solution from the first fermentation step, and d) in a second fermentation step fermenting the solution comprising the acetic acid and butyric acid from step (c) to form ethanol and butanol.
    • 本发明涉及从生物质生产乙醇和丁醇的方法,特别涉及使用两个单独的发酵步骤生产乙醇和丁醇的方法,所述方法包括:a)将生物质原料送入第一次发酵 步骤,b)在所述第一发酵步骤中,使生物质原料进行厌氧发酵,pH低于6.0,温度范围为20至700℃,以便将生物质转化成主要包含乙酸和丁酸的产物 酸与乙酸至丁酸的重量比至少为2:1,c)处理步骤(b)的产物流以通过以下方式分离包含乙酸和丁酸的溶液:(i)将包含 任何残留固体的乙酸和丁酸,和(ii)从第一发酵步骤分离细菌和/或将溶液灭菌或灭菌,以及d)在第二发酵步骤中发酵 包含来自步骤(c)的乙酸和丁酸以形成乙醇和丁醇。
    • 5. 发明申请
    • PROCESS AND APPARATUS FOR THE PRODUCTION OF ALCOHOLS
    • 用于生产醇的方法和装置
    • US20130252299A1
    • 2013-09-26
    • US13881101
    • 2011-11-02
    • Peter Simpson BellBrian Henry CookeNeil Turnbull
    • Peter Simpson BellBrian Henry CookeNeil Turnbull
    • C12P7/06
    • C12P7/065C12M21/12C12M43/00Y02E50/17Y02E50/343
    • A process for the production of C2− alcohols from a methane-containing feedstock which process comprises a) optionally reacting in a pre-reformer the methane-containing feedstock in the presence of steam, where the steam plus C02 to methane molar ratio is less than 5:1; b) reforming at least a portion of the methane-containing feedstock in a first reformer optionally in the presence of steam, where the steam plus C02 to methane molar ratio is less than 5:1 to produce a first product stream comprising CO, H2 and C02; c) optionally subjecting at least a portion of the first product stream and/or a portion of the methane containing feedstock to a reforming process in a second reformer in the presence of steam and oxygen to produce a second product stream comprising CO, H2 and C02 d) subjecting the product streams to a bacterial fermentation process in a fermenter to produce a third product stream comprising an aqueous solution of at least one C2− alcohol, nutrients and reaction intermediates and a fourth product stream comprising CO, H2 and C02 at least 60% of the CO being converted; e) recycling at least a portion of the fourth product stream to the methane-containing feedstock; f) recovering at least a part of the at least one C2− alcohols from the third product stream to leave a fifth product stream; and g) recycling at least a part of the fifth product stream to the fermenter.
    • 一种从含甲烷原料生产C2-醇的方法,该方法包括:a)在蒸汽存在下,任选地在预重整器中反应含甲烷的原料,其中蒸汽加CO 2与甲烷的摩尔比小于 5:1; b)任选地在蒸汽存在下任选地在第一重整器中重整至少一部分含甲烷原料,其中蒸汽加CO 2与甲烷的摩尔比小于5:1,以产生包含CO,H 2和 C02; c)在蒸汽和氧气的存在下,任选地使至少一部分第一产物流和/或含甲烷原料的一部分在第二重整器中进行重整过程,以产生包含CO,H 2和CO 2的第二产物流 d)使产物流在发酵罐中进行细菌发酵过程,以产生包含至少一种C 2醇,营养物和反应中间体的水溶液的第三产物流和包含CO,H 2和CO 2的第四产物流至少60 CO转化率的百分比; e)将第四产物流的至少一部分再循环到含甲烷的原料中; f)从第三产物流中回收至少一部分至少一种C 2醇以留下第五产物流; 和g)将第五产物流的至少一部分再循环到发酵罐中。