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在木糖醇处理液和玉米发酵处理液中乙二醇含量较高,分离木糖醇或农产品加工副产物处理液中的乙二醇是未来食品工业和农副产品加工业生产中的新的经济增长点,对减少不可再生资源的消耗和保护环境具有深远影响。研究分析了国内外乙二醇分离技术的现状,指出了这些分离方法存在的问题,并提出了共沸精馏分离技术中共沸剂选择的方法和分离需要达到的要求。
Higher xylene glycol content in xylitol-treated and corn fermentation broths and the isolation of xylitol or ethylene glycol in the processing by-products of agricultural products is the new economy in the future of the food industry and the processing of agricultural and sideline products The growth point has a far-reaching impact on reducing the consumption of non-renewable resources and protecting the environment. The current situation of ethylene glycol separation technology at home and abroad is analyzed and analyzed. The problems existing in these separation methods are pointed out. The selection method of azeotropic agent in azeotropic distillation separation technology and the requirements for separation are proposed.