Determination of wax removal and viscosity reduction in crude oil treated by dominant bacteria

被引：4
作者：
Wang, Weiqiang [1 ]
Wu, Shangshu [1 ]
Cui, Jing [1 ]
Yu, Xin [2 ]
Zhang, Haijuan [1 ]
机构：
[1] Liaoning Shihua Univ, Coll Petr Engn, Fushun 113001, Liaoning, Peoples R China
[2] Xiamen Univ, Coll Environm & Ecol, Xiamen, Peoples R China
来源：
PETROLEUM SCIENCE AND TECHNOLOGY | 2020年 / 38卷 / 07期
关键词：
Biosurfactant; crude oil; D2O-labeled single-cell Raman spectroscopy; viscosity reduction; wax removal; BIOSURFACTANT; STRAIN; IDENTIFICATION; PREVENTION;
D O I：
10.1080/10916466.2020.1783293
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Five paraffin-degrading bacteria were isolated from petroleum-contaminated soil collected from Liaohe Oilfield, from which a dominant strain named SS13 was screened out via D2O-labeled single-cell Raman spectroscopy. The dominant strain was identified asStenotrophomonas maltophilia, and its potential effect in the biodegradation of crude oil was investigated. Results show that the strain produces a biosurfactant which has an emulsification effect on liquid paraffin, and the emulsification index is 65%. The crude oil after incubation with SS13 shows the rates of the wax removal and viscosity reduction reach 74.36% and 47.83%, respectively.
引用
收藏
页码：627 / 634
页数：8
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