Preparation of microbial desulfurization catalysts

作     者：XU Ping MA Cuiqing LI Fuli TONG Mingyou ZENG Yiyong WANG Shuning H.D.Blankespoor 

作者机构：State Key Laboratory of Microbial TechnologyShandong UniversityJinan 250100China Fushun Research Institute of Petroleum and Petro-chemicalsChina Petroleum&Chemical Corp.(SINOPHC)Fushun 113001China Biology DepartmentHope CollegeMI 49423USA 

出 版 物：《Chinese Science Bulletin》 (Chin. Sci. Bull.)

年 卷 期：2002年第47卷第13期

页      面：1077-1081页

核心收录：

学科分类：081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 29977011) the Visiting Scholar Foundation for Key Laboratory in University, the Ministry of Education of China (State Key Lab of Bioreactor Engineering, East China Un 

主　　题：microbe biodesulfurization. dibenzothiophene (DBT) catalyst. 

摘      要：A Rhodococcus sp. lawq, a bacterium isolated from the soil cleaving the C-S bond of dibenzothiophene (DBT) via specific pathway, was investigated for cell growth and for its role in desulfurization. Clearly, the end product, 2-hydroxybiphenyl, inhibited the growth of the strain, the synthesis of the desulfurization enzymes, and the activity of the enzymes. The effects of sulfate on the DBT degradation enzymes were examined in the Rhodococcus sp. lawq growth system with DBT; the sulfate served, concurrently, as the sulfur source. The condition of the resting cells that were used in desulfurization, was also studied. The optimal concentration of the resting cells and the reaction conditions were determined. It was documented that there is no difference between desulfurization activity for resting cells cultured with sulfate as the sole sulfur source and that with the mixture of DBT and sulfate as the sulfur source.