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Modification Wettability and Interfacial Tension of Heavy Crude Oil by Green Bio-surfactant Based on Bacillus licheniformis and Rhodococcus erythropolis Strains under Reservoir Conditions: Microbial Enhanced Oil Recovery
Mahmoud, Tahany2,6; Samak, Nadia A.3,4,5,7; Abdelhamid, M. M.1,2; Aboulrous, A. A.1; Xing, Jianmin3,4,5
2021-01-21
Source PublicationENERGY & FUELS
ISSN0887-0624
Volume35Issue:2Pages:1648-1663
AbstractOil spill contamination in soil is still problematic. At the same time, petroleum-contaminated soil in oil reservoirs contain various microbes, which have the ability for biosurfactant production. Extracting these biosurfactants is a very promising and cost-effective strategy for the microbial enhanced oil recovery process. Biosurfactants production using Bacillus licheniformis AnBa7 and Rhodococcus erythropolis sp., isolated from Egyptian crude oils, was enhanced using various carbon sources. The best bio-surfactant characteristics were observed when 1% of crude oil was used as a carbon source. The production was further improved by using a developed fed-batch cultivation strategy depends on using 1% Glucose as a single addition at the beginning of the culture. Then 1% of crude oil was added three times during the production process. This strategy enhanced surfactin and trehalose productivity by 1.8 and 4.7 fold higher than the normal conditions, respectively. The surface-active and thermodynamic properties were studied. The results indicated that the calculated values of Delta G(mic) for surfactin complex, and trehalose complex were -18.47 and -18.28 kJ/mol at 60 degrees C, respectively while Delta G(ads) values were -30.42 and -29.46 kJ/mol at 60 degrees C. The interfacial tension (IFT) values of surfactin complex and trehalose complex systems were ranging from 0.75 to 0.19 mN m(-1) and from 0.93 to 0.26 mN m(-1) at 60 degrees C, respectively. However, the (IFT) for the blank solution was similar to 11.57 mN m(-1), and the wettability was changed to an excellent water-wet state (theta = similar to 17.42-24.0 degrees). The core-flooding studies showed that the enhanced oil recovery for surfactin complex and trehalos complex, at maximum concentration 6 g/L, were 59.21% and 51.83%, respectively. A predicted mechanism was illustrating through the text.
DOI10.1021/acs.energyfuels.0c03781
Language英语
Funding ProjectEgyptian Petroleum Research Institute (EPRI), Egypt
WOS Research AreaEnergy & Fuels ; Engineering
WOS SubjectEnergy & Fuels ; Engineering, Chemical
Funding OrganizationEgyptian Petroleum Research Institute (EPRI), Egypt
WOS IDWOS:000613197300061
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/43498
Collection中国科学院过程工程研究所
Corresponding AuthorMahmoud, Tahany; Samak, Nadia A.
Affiliation1.Egyptian Petr Res Inst, Prod Dept, Cairo, Egypt
2.Egyptian Petr Res Inst, Enhanced Oil Recovery Unit, Cairo, Egypt
3.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
5.Univ Chinese Acad, Coll Chem Engn, Beijing 100049, Peoples R China
6.Egyptian Petr Res Inst, Petr Applicat Dept, Cairo, Egypt
7.Egyptian Petr Res Inst, Proc Design & Dev Dept, Cairo, Egypt
Recommended Citation
GB/T 7714
Mahmoud, Tahany,Samak, Nadia A.,Abdelhamid, M. M.,et al. Modification Wettability and Interfacial Tension of Heavy Crude Oil by Green Bio-surfactant Based on Bacillus licheniformis and Rhodococcus erythropolis Strains under Reservoir Conditions: Microbial Enhanced Oil Recovery[J]. ENERGY & FUELS,2021,35(2):1648-1663.
APA Mahmoud, Tahany,Samak, Nadia A.,Abdelhamid, M. M.,Aboulrous, A. A.,&Xing, Jianmin.(2021).Modification Wettability and Interfacial Tension of Heavy Crude Oil by Green Bio-surfactant Based on Bacillus licheniformis and Rhodococcus erythropolis Strains under Reservoir Conditions: Microbial Enhanced Oil Recovery.ENERGY & FUELS,35(2),1648-1663.
MLA Mahmoud, Tahany,et al."Modification Wettability and Interfacial Tension of Heavy Crude Oil by Green Bio-surfactant Based on Bacillus licheniformis and Rhodococcus erythropolis Strains under Reservoir Conditions: Microbial Enhanced Oil Recovery".ENERGY & FUELS 35.2(2021):1648-1663.
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