Biodesulfurization of Model Compounds and De-asphalted Bunker Oil by Mixed Culture
文献类型：期刊论文
| 作者 | Jiang, Xia1,3; Yang, Senlin1; Li, Wangling2,3 |
| 刊名 | APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
 |
| 出版日期 | 2014 |
| 卷号 | 172期号:1页码:62-72 |
| 关键词 | Biodesulfurization Benzonaphthothiophene Heavy oil Dibenzothiophene De-asphalting |
| ISSN号 | 0273-2289 |
| 其他题名 | Appl. Biochem. Biotechnol. |
| 中文摘要 | In this study, complicated model sulfur compounds in bunker oil and de-asphalted bunker oil were biodesulfurized in a batch process by microbial consortium enriched from oil sludge. Dibenzothiophene (DBT) and benzo[b]naphtho[1,2-d]thiophene (BNT1) were selected as model sulfur compounds. The results show that the mixed culture was able to grow by utilizing DBT and BNT1 as the sole sulfur source, while the cell density was higher using DBT than BNT1 as the sulfur source. GC-MS analysis of their desulfurized metabolites indicates that both DBT and BNT1 could be desulfurized through the sulfur-specific degradation pathway with the selective cleavage of carbon-sulfur bonds. When DBT and BNT1 coexisted, the biodesulfurization efficiency of BNT1 decreased significantly as the DBT concentrations increased (> 0.1 mmol/L). BNT1 desulfurization efficiency also decreased along with the increase of 2-hydroxybiphenyl as the end product of DBT desulfurization. For real bunker oil, only 2.8 % of sulfur was removed without de-asphalting after 7 days of biotreatment. After de-asphalting, the biodesulfurization efficiency was significantly improved (26.2-36.5 %), which is mainly attributed to fully mixing of the oil and water due to the decreased viscosity of bunker oil. |
| 英文摘要 | In this study, complicated model sulfur compounds in bunker oil and de-asphalted bunker oil were biodesulfurized in a batch process by microbial consortium enriched from oil sludge. Dibenzothiophene (DBT) and benzo[b]naphtho[1,2-d]thiophene (BNT1) were selected as model sulfur compounds. The results show that the mixed culture was able to grow by utilizing DBT and BNT1 as the sole sulfur source, while the cell density was higher using DBT than BNT1 as the sulfur source. GC-MS analysis of their desulfurized metabolites indicates that both DBT and BNT1 could be desulfurized through the sulfur-specific degradation pathway with the selective cleavage of carbon-sulfur bonds. When DBT and BNT1 coexisted, the biodesulfurization efficiency of BNT1 decreased significantly as the DBT concentrations increased (> 0.1 mmol/L). BNT1 desulfurization efficiency also decreased along with the increase of 2-hydroxybiphenyl as the end product of DBT desulfurization. For real bunker oil, only 2.8 % of sulfur was removed without de-asphalting after 7 days of biotreatment. After de-asphalting, the biodesulfurization efficiency was significantly improved (26.2-36.5 %), which is mainly attributed to fully mixing of the oil and water due to the decreased viscosity of bunker oil. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology |
| 关键词[WOS] | MICROBIAL DESULFURIZATION ; HEAVY OILS ; CRUDE-OIL ; SP STRAIN ; DIBENZOTHIOPHENE ; SULFUR ; REACTIVITY ; THIOPHENE ; BACTERIUM ; PATHWAY |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000331005200006 |
| 公开日期 | 2014-05-06 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/8040]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Sichuan Univ, Coll Architecture & Environm, Chengdu 610065, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 3.Nanyang Technol Univ, Inst Environm Sci & Engn, Singapore 63772, Singapore |
| 推荐引用方式 GB/T 7714 | Jiang, Xia,Yang, Senlin,Li, Wangling. Biodesulfurization of Model Compounds and De-asphalted Bunker Oil by Mixed Culture[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,2014,172(1):62-72. |
| APA | Jiang, Xia,Yang, Senlin,&Li, Wangling.(2014).Biodesulfurization of Model Compounds and De-asphalted Bunker Oil by Mixed Culture.APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,172(1),62-72. |
| MLA | Jiang, Xia,et al."Biodesulfurization of Model Compounds and De-asphalted Bunker Oil by Mixed Culture".APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY 172.1(2014):62-72. |
入库方式： OAI收割
来源：过程工程研究所
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