三塔流程苯共沸法生产高纯度无水乙醇技术的研究  

Production of highly purified ethanol with triple-column and benzene azeotropic method

作　　者：梁利和 

机构地区：[1]山东龙口酒厂,山东龙口265700

出　　处：《中国酿造》2010年第4期144-145,共2页China Brewing

摘　　要：共沸法生产无水乙醇的技术方法,是通过向普通的酒精中添加夹带剂(如苯),利用普通的蒸馏塔设备进行精馏。由于设备流程和加工工艺的不同,生产的无水乙醇的纯度是不同的,研究采用"恒沸蒸馏-苯回收蒸馏-酒精回收蒸馏"三塔流程技术,可使成品无水乙醇含量超过99.8%vol。Azeotropic method in production of pure ethanol is to distill ethanol using common distillation column by addition of entrainer such as benzene. Purity of final ethanol is varied due to differences of equipment and technology. Application of triple-column processing teelmology, that is, azeotropic distillation, followed by recovery distillation of benzene and recovery distillation of ethanol could achieve the purity of ethanol at 99.8% W/V）.

关 键 词：三塔流程 共沸法 无水乙醇 恒沸蒸馏 

分 类 号：TQ223.1[化学工程—有机化工]