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    Studies on the Optimization of the Process for 1,3-Propanediol from Raw Glycerol by Clostridium Butyricum and Electrodialysis Desalting

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    1,3-丙二醇(1,3-PD)是一种重要的化工原料,具有广泛的应用领域,最主要的用途是合成PTT(聚对苯二甲酸丙二醇酯)。目前,生产1,3-PD的主要方法有化学合成法和微生物发酵法。发酵法生产1,3-PD以其利用可再生资源和对环境友好等优点日益受到重视。 本论文用丁酸梭状芽孢杆菌(Clostridiumbutyricum)发酵工业粗甘油生产1,3-PD,以降低发酵法生产1,3-PD的成本。研究内容主要包括补料分批发酵过程优化、菌株代谢进化、放大实验的考察以及电渗析脱盐的实验。 一、通过控制甘油浓度(20g/L)的补料方式进行补料分批发酵,分别考察接种量、搅拌转速、初始甘油浓度以及灭菌操作对...1,3-Propanediol (1,3-PD) is an important chemical compound with wide range of applications. It is mainly used as a monomer for the synthesis of PTT. Nowadays, the main methods of producing 1,3-PD are chemical synthesis and microbial fermentation. Microbial production of 1,3-PD has attracted wide attentions as it uses renewable resources and dose not generate pollutants. In this paper, industrial...学位:工程硕士院系专业:化学化工学院_工程硕士(化学工程)学号:2062014115146
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