Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems
Hydrate formation and agglomeration in oil and gas pipelines is a serious safety and environmental problem. An eco-friendly and effective anti-agglomerant is a promising candidate to mitigate gas hydrate blockage risk environmentally and economically. This study evaluated the anti-agglomeration effe...
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ftchacadsciegiec:oai:ir.giec.ac.cn:344007/33359 2023-05-15T17:12:05+02:00 Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems Shi, Lingli He, Yong Lu, Jingsheng Hou, Guodong Liang, Deqing 2021-08-15 http://ir.giec.ac.cn/handle/344007/33358 http://ir.giec.ac.cn/handle/344007/33359 https://doi.org/10.1016/j.energy.2021.120755 英语 eng PERGAMON-ELSEVIER SCIENCE LTD ENERGY http://ir.giec.ac.cn/handle/344007/33358 http://ir.giec.ac.cn/handle/344007/33359 doi:10.1016/j.energy.2021.120755 Anti-agglomeration effect Biosurfactant Rhamnolipid Trehalose lipids Oil and gas NATURAL-GAS HYDRATE QUATERNARY AMMONIUM-SALT METHANE HYDRATE ALCOHOL COSURFACTANTS OIL SURFACTANT INHIBITION TRANSPORT KINETICS PROMOTER Thermodynamics Energy & Fuels 期刊论文 2021 ftchacadsciegiec https://doi.org/10.1016/j.energy.2021.120755 2022-09-23T14:18:02Z Hydrate formation and agglomeration in oil and gas pipelines is a serious safety and environmental problem. An eco-friendly and effective anti-agglomerant is a promising candidate to mitigate gas hydrate blockage risk environmentally and economically. This study evaluated the anti-agglomeration effect of mixed biosurfactants (rhamnolipid + trehalose lipids) through the torque changes during the CH4 hydrate growth process. The results showed that mixed biosurfactants greatly decreased the force needed for the system to be flowing. A surprising synergistic effect functioned for mixed biosurfactants, leading to the decease of dosage needed for anti-agglomeration. The CH4 hydrate formation kinetics was also studied, and the data revealed that mixed biosurfactants could fasten the gas dissolution process while did not greatly change the hydrate growth rate. In addition, the Raman spectra for CH4 hydrate formed with mixed biosurfactants were obtained and analyzed. It demonstrated that the added biosurfactants decreased the hydration number by increasing the small cage occupancy. Meanwhile, the hydrate surface became regular and smooth, which contributed to preventing hydrate blockage in oil and gas system. (C) 2021 Elsevier Ltd. All rights reserved. Report Methane hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Energy 229 120755 |
institution |
Open Polar |
collection |
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR |
op_collection_id |
ftchacadsciegiec |
language |
English |
topic |
Anti-agglomeration effect Biosurfactant Rhamnolipid Trehalose lipids Oil and gas NATURAL-GAS HYDRATE QUATERNARY AMMONIUM-SALT METHANE HYDRATE ALCOHOL COSURFACTANTS OIL SURFACTANT INHIBITION TRANSPORT KINETICS PROMOTER Thermodynamics Energy & Fuels |
spellingShingle |
Anti-agglomeration effect Biosurfactant Rhamnolipid Trehalose lipids Oil and gas NATURAL-GAS HYDRATE QUATERNARY AMMONIUM-SALT METHANE HYDRATE ALCOHOL COSURFACTANTS OIL SURFACTANT INHIBITION TRANSPORT KINETICS PROMOTER Thermodynamics Energy & Fuels Shi, Lingli He, Yong Lu, Jingsheng Hou, Guodong Liang, Deqing Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems |
topic_facet |
Anti-agglomeration effect Biosurfactant Rhamnolipid Trehalose lipids Oil and gas NATURAL-GAS HYDRATE QUATERNARY AMMONIUM-SALT METHANE HYDRATE ALCOHOL COSURFACTANTS OIL SURFACTANT INHIBITION TRANSPORT KINETICS PROMOTER Thermodynamics Energy & Fuels |
description |
Hydrate formation and agglomeration in oil and gas pipelines is a serious safety and environmental problem. An eco-friendly and effective anti-agglomerant is a promising candidate to mitigate gas hydrate blockage risk environmentally and economically. This study evaluated the anti-agglomeration effect of mixed biosurfactants (rhamnolipid + trehalose lipids) through the torque changes during the CH4 hydrate growth process. The results showed that mixed biosurfactants greatly decreased the force needed for the system to be flowing. A surprising synergistic effect functioned for mixed biosurfactants, leading to the decease of dosage needed for anti-agglomeration. The CH4 hydrate formation kinetics was also studied, and the data revealed that mixed biosurfactants could fasten the gas dissolution process while did not greatly change the hydrate growth rate. In addition, the Raman spectra for CH4 hydrate formed with mixed biosurfactants were obtained and analyzed. It demonstrated that the added biosurfactants decreased the hydration number by increasing the small cage occupancy. Meanwhile, the hydrate surface became regular and smooth, which contributed to preventing hydrate blockage in oil and gas system. (C) 2021 Elsevier Ltd. All rights reserved. |
format |
Report |
author |
Shi, Lingli He, Yong Lu, Jingsheng Hou, Guodong Liang, Deqing |
author_facet |
Shi, Lingli He, Yong Lu, Jingsheng Hou, Guodong Liang, Deqing |
author_sort |
Shi, Lingli |
title |
Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems |
title_short |
Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems |
title_full |
Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems |
title_fullStr |
Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems |
title_full_unstemmed |
Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems |
title_sort |
anti-agglomeration evaluation and raman spectroscopic analysis on mixed biosurfactants for preventing ch4 hydrate blockage in n-octane plus water systems |
publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
publishDate |
2021 |
url |
http://ir.giec.ac.cn/handle/344007/33358 http://ir.giec.ac.cn/handle/344007/33359 https://doi.org/10.1016/j.energy.2021.120755 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
ENERGY http://ir.giec.ac.cn/handle/344007/33358 http://ir.giec.ac.cn/handle/344007/33359 doi:10.1016/j.energy.2021.120755 |
op_doi |
https://doi.org/10.1016/j.energy.2021.120755 |
container_title |
Energy |
container_volume |
229 |
container_start_page |
120755 |
_version_ |
1766068844438224896 |