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    • 10. 发明专利
    • Method of dehydrating and purifying fermentation liquid and system therefor
    • 脱水和净化发酵液及其系统的方法
    • JP2009240305A
    • 2009-10-22
    • JP2009057056
    • 2009-03-10
    • Nippon Kagaku Kikai Seizo Kk日本化学機械製造株式会社
    • KAISE TAKUYAUCHIDA YASUNARININOMIYA KOHEI
    • C12P7/06B01D3/14B01D53/22C10L1/02C12P7/16C12P7/28
    • Y02E50/17Y02P20/126
    • PROBLEM TO BE SOLVED: To provide a method of dehydrating and purifying a fermentation liquid, capable of sufficiently saving energy while suppressing loss of a fermentation product in a low level and to provide a system therefor.
      SOLUTION: The method for dehydration and purification comprises a distillation step of generating ethanol-water mixed vapor by feeding an ethanol fermentation liquid to an uppermost stage part of a distillation column 5 and also feeding steam to a lowest stage part of the distillation column 5, and a dehydration step of dehydrating ethanol-water mixed vapor generated by the distillation using a separation film 13. In the method, the feed amount of steam in gas-liquid equilibrium limit point of ethanol and water in the uppermost stage part of the distillation column 5 is set as a target steam feed amount, and the feed amount of steam fed to the lowest stage part of the distillation column 5 is controlled so as to agree with the target steam feed amount.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 待解决的问题:提供一种脱水和纯化发酵液体的方法,其能够在抑制低水平发酵产物的损失的同时充分节省能量并提供其系统。 解决方案:脱水和纯化的方法包括通过将乙醇发酵液供给到蒸馏塔5的最上段部分并且将蒸汽供给到蒸馏的最低阶段部分来产生乙醇 - 水混合蒸气的蒸馏步骤 柱5,以及使用分离膜13使由蒸馏产生的乙醇 - 水混合蒸汽脱水的脱水步骤。在该方法中,在最上段部分的乙醇和水的气液平衡极限点中的蒸汽进料量 蒸馏塔5被设定为目标蒸汽进料量,并且进料到蒸馏塔5的最低级部分的蒸汽的进料量被控制为与目标蒸汽进料量一致。 版权所有(C)2010,JPO&INPIT