Desulfurization of petroleum by the use of biotechnology

被引:11
作者
Ishii, Y [1 ]
Kobayashi, M [1 ]
Konishi, J [1 ]
Onaka, T [1 ]
Okumura, K [1 ]
Suzuki, M [1 ]
机构
[1] Petr Energy Ctr, Adv Technol & Res Inst, Biorefining Proc Lab, Shimizu, Shizuoka 4240037, Japan
关键词
D O I
10.1246/nikkashi.1998.373
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Petroleum contains various kinds of heterocyclic organosulfur compounds refractory to conventional hydrodesulfurization. Several mesophilic and thermophilic bacteria, which are capable of cleaving efficiently carbon-sulfur bonds in dibenzothiophene as a model compound, have been isolated, When these desulfurizing bacteria were used for treatment of light gas oil previously processed through hydrodesulfurization, the refractory organosulfur compounds in the oil phase clearly decreased. Moreover, the thermophilic desulfurizing bacteria was found to be able to release sulfur atoms as sulfate ion and leave the monohydroxylated hydrocarbon moieties intact on attacking dibenzothiophene and its various methylated derivatives at temperatures up to 60 degrees C.
引用
收藏
页码:373 / 381
页数:9
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