کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8843980 | 1616291 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heavy hydrocarbon degradation of crude oil by a novel thermophilic Geobacillus stearothermophilus strain A-2
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
علوم زیست محیطی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Heavy hydrocarbon degradation of crude oil by a novel thermophilic Geobacillus stearothermophilus strain A-2 Heavy hydrocarbon degradation of crude oil by a novel thermophilic Geobacillus stearothermophilus strain A-2](/preview/png/8843980.png)
چکیده انگلیسی
Thermophilic hydrocarbon-degrading microbial strains are particularly suited to improve the oil recovery process in high temperature reservoirs. In the present study, the effects of the thermophilic hydrocarbon-degrading Geobacillus stearothermophilus strain A-2 on heavy crude oil were investigated in terms of oil emulsification, changes in the oil viscosity and hydrocarbons degradation. Strain A-2 was isolated from the Dagang petroleum reservoir. Strain A-2 has strong surface hydrophobicity, and produces a bioemulsifier. The fermentation broth of strain A-2 caused the oil to disperse, and decreased the oil viscosity from 1540 mPa s to 923 mPa s. Strain A-2 preferentially degrades n-alkanes and aromatic hydrocarbons. In particular strain A-2 prefers the long-chain n-alkanes (>C21), naphthalene and methylated phenanthrene, and the highest degradation rate was 89.83% when cultured with C28 as a sole carbon source. Collectively, Geobacillus stearothermophilus strain A-2 showed its potential application for improving oil exploration in high-temperature oil reservoirs by improving the oil's properties.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Biodeterioration & Biodegradation - Volume 126, January 2018, Pages 224-230
Journal: International Biodeterioration & Biodegradation - Volume 126, January 2018, Pages 224-230
نویسندگان
Jie-Fang Zhou, Pei-Ke Gao, Xiao-Hui Dai, Xiao-Yu Cui, Hui-Mei Tian, Jun-Jie Xie, Guo-Qiang Li, Ting Ma,