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    • 1. 发明授权
    • Fermentation process
    • 发酵过程
    • US4420561A
    • 1983-12-13
    • US230461
    • 1981-02-02
    • Nai Y. ChenJoseph N. Miale
    • Nai Y. ChenJoseph N. Miale
    • C07C29/76C12P7/06
    • C12P7/06C07C29/76Y02E50/17Y10S435/942
    • In an ethanol fermentation process in which an aqueous solution of fermentable sugar is converted by an ethanol-producing microorganism such as a yeast to a dilute aqueous solution of ethanol with the ethanol being present in the solution at a concentration which does not exceed a predetermined maximum level, an improvement is provided which comprises selectively sorbing ethanol present in the solution within a hydrophilic crystalline aluminosilicate ZSM-5 or HZSM-5 zeolite so that the non-sorbed ethanol present in the solution does not exceed the predetermined maximum level of concentration therein, and thereafter removing sorbed ethanol from the zeolite.
    • 在乙醇发酵过程中,其中可发酵糖的水溶液由产乙醇的微生物如酵母转化为稀乙醇水溶液,乙醇以不超过预定最大值的浓度存在于溶液中 水平,提供了一种改进,其包括选择性吸附在亲水结晶硅铝酸盐ZSM-5或HZSM-5沸石中的溶液中存在的乙醇,使得溶液中存在的未吸附的乙醇不超过其中预定的最大浓度水平, 然后从沸石中除去吸附的乙醇。