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    • 9. 发明申请
    • PROCESS FOR THE PRODUCTION OF ETHANOL AND BUTANOL FROM BIOMASS
    • 从生物量生产乙醇和丁醇的方法
    • WO2009112335A1
    • 2009-09-17
    • PCT/EP2009/051966
    • 2009-02-19
    • INEOS EUROPE LIMITEDBELL, Peter SimpsonBENSTEAD, Stephen John
    • BELL, Peter SimpsonBENSTEAD, Stephen John
    • C12P7/14C12P7/16C12P7/06C12P7/08
    • 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)将生物质原料送至第一次发酵 步骤,b)在所述第一发酵步骤中,使生物质原料在pH低于6.0,温度范围为20至700℃的条件下进行厌氧发酵,以将生物质转化成主要包含乙酸和丁酸的产物 其中乙酸与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步骤分离包含乙酸和丁酸的溶液:(i)将包含乙酸 来自任何残留固体的酸和丁酸和(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所述溶液 包括来自步骤(c)的乙酸和丁酸以形成乙醇和丁醇。