Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems

doi:10.1016/j.energy.2021.120755

	Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems
	Shi, Lingli 1,2,3,4; He, Yong 1,2,3,4; Lu, Jingsheng 1,2,3,4; Hou, Guodong 2,3,4,5; Liang, Deqing 1,2,3,4
刊名	ENERGY
	2021-08-15
卷号	229 页码:11
关键词	Anti-agglomeration effect Biosurfactant Rhamnolipid Trehalose lipids Oil and gas
ISSN号	0360-5442
DOI	10.1016/j.energy.2021.120755
通讯作者	Liang, Deqing(liangdq@ms.giec.ac.cn)
英文摘要	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.
资助项目	National Natural Science Foundation of China[51976227] ; National Natural Science Foundation of China[52004261] ; Guangdong Province MEDP Fund[GDOE [2019] A54] ; Guangdong Province MEDP Fund[GDOE [2019] A39] ; PetroChina Innovation Foundation[2019D50070216] ; Guangdong Special Support ProgramLocal innovation and entrepreneurship team project[2019BT02L278] ; Fund of Key Laboratory of Gas Hydrate Chinese Academy of Sciences[E029020501] ; Youth Innovation Promotion Association CAS[2020344]
WOS关键词	NATURAL-GAS HYDRATE ; QUATERNARY AMMONIUM-SALT ; METHANE HYDRATE ; ALCOHOL COSURFACTANTS ; OIL ; SURFACTANT ; INHIBITION ; TRANSPORT ; KINETICS ; PROMOTER
WOS研究方向	Thermodynamics ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000660686600015
资助机构	National Natural Science Foundation of China ; Guangdong Province MEDP Fund ; PetroChina Innovation Foundation ; Guangdong Special Support ProgramLocal innovation and entrepreneurship team project ; Fund of Key Laboratory of Gas Hydrate Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/33358]
专题	中国科学院广州能源研究所
通讯作者	Liang, Deqing
作者单位	1.State Key Lab Nat Gas Hydrate, Beijing 100028, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 5.Univ Sci & Technol China, Dept Thermal Sci & Energy Engn, Hefei 230027, Peoples R China
推荐引用方式 GB/T 7714	Shi, Lingli,He, Yong,Lu, Jingsheng,et al. Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems[J]. ENERGY,2021,229:11.
APA	Shi, Lingli,He, Yong,Lu, Jingsheng,Hou, Guodong,&Liang, Deqing.(2021).Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems.ENERGY,229,11.
MLA	Shi, Lingli,et al."Anti-agglomeration evaluation and Raman spectroscopic analysis on mixed biosurfactants for preventing CH4 hydrate blockage in n-octane plus water systems".ENERGY 229(2021):11.