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Study on the Separation of 1,3-Propanediol from 1,3-Propanediol Broth Fermented by Clostridium butyricum

Abstract

1,3-丙二醇是一种重要的化工原料,发酵法生产1,3-丙二醇是一环境友好的生产方法,但由于发酵液成分复杂,导致下游分离成本较高。本论文的目的是利用阳离子树脂从丁酸梭菌的1,3-丙二醇发酵液中吸附分离1,3-丙二醇,主要研究了1,3-丙二醇的吸附机理和“絮凝-活性炭除色-阳离子树脂动态吸附/洗脱-减压蒸馏”的1,3-丙二醇分离提取新工艺,主要结果如下: (1)研究了12种树脂对1,3-丙二醇的静态吸附能力,发现001×7氢型树脂对1,3-丙二醇的吸附效果最好。研究了1,3-丙二醇在001×7氢型树脂上的吸附平衡特性和热力学特性。1,3-丙二醇的吸附遵循Langmuir吸附等温模型;在热力学方面...1,3-Propanediol is an important chemical. Microbial production of 1,3-propanediol is an environmentally friendly technology. However, due to the low concentration and the complexity of the fermentation broth, the cost of downstream accounts for a considerable proportion of the whole costs. The article tried to use the cation resin adsorption technology to extract 1,3-propanediol from 1,3-propanedi...学位:工学硕士院系专业:化学化工学院_生物化工学号:2062010115149

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