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›› 2003, Vol. 3 ›› Issue (3): 0-0.

• 3 •    

异喹啉及其同系物的分离

周霞萍，王德龙，何衍庆，等   

  1. 1. 华东理工大学能源化工系, 上海 200237; 2. 华东理工大学自动控制系, 上海 200237; 宝钢化工技术中心，上海 200942
  • 出版日期:2003-06-20 发布日期:2003-06-20

Growth of Pseudomonas delafieldii R-8 and Biodegradation of Dibenzothiophene in Aqueous Solution

LUO Ming-fang, JIANG Cheng-ying, XING Jian-min, GOU Zhong-xuan, LI Shan, LIU Hui-zhou, CHEN Jia-yong   

  1. Youth Lab. Sep. Sci. Eng., State Key Lab. Biochem. Eng., Inst. Proc. Eng., CAS, Beijing 100080, China
  • Online:2003-06-20 Published:2003-06-20

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摘要： 以喹啉残油为原料, 通过改性丝光沸石填料和金属丝网(孔板)填料增加异喹啉及其同系物分离时的物性差异，并通过设定、调节PID参数，考察不同条件下自整定控制对实验的影响. 结果表明：在自制的容积为3 L的半自动精馏装置中，利用功能填料由PID控制可以得到总收率80%~ 85%、纯度95%~98%的喹啉、异喹啉，甲基喹啉.

关键词: 异喹啉及其同系物, 同分异构体, 填料, PID自整定控制

Abstract: Pseudomonas delafieldii R-8 isolated from coal contaminated soils in our laboratory could metabolize DBT to 2-hydroxybiphenyl via the sulfur-specific pathway. Effects of initial pH, sources of carbon and nitrogen of the culture media were investigated by using DBT as the sole source of sulfur in aqueous phase. It was indicated that this strain grew well in the pH range of 6~9 and the optimal temperature for growth was 30oC. Glycerol was the optimal carbon source and the optimal concentration was 10 g/L. Organic nitrogen sources including yeast extract, bacto-typtone and beef typtone were conducive to the growth of this strain, but repressed the expression of the desulfurization activity of R-8 even in the presence of DBT. Ammonia acetate was the appropriate source of nitrogen at the concentration of 1.6 g/L. Although sodium sulfate, dimethyl sulfoxide, methionine, cysteine and DBT could be used as the sole sources of sulfur respectively, these sulfur-containing compounds except DBT could not induce the expression of the biodegradation activity of R-8.

Key words: biodesulfurization, dibenzothiophene, growth, Pseudomonas delafieldii

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