Effect of dodecyl dimethyl benzyl ammonium chloride on CH4 hydrate growth and agglomeration in oil-water systems

doi:10.1016/j.energy.2020.118746

	Effect of dodecyl dimethyl benzyl ammonium chloride on CH4 hydrate growth and agglomeration in oil-water systems
	Shi, Lingli 1,2,3,4; He, Yong 1,2,3,4; Lu, Jingsheng 1,2,3,4; Liang, Deqing 1,2,3,4
刊名	ENERGY
	2020-12-01
卷号	212 页码:11
关键词	DDBAC CH4 hydrate Formation kinetics Anti-agglomerant
ISSN号	0360-5442
DOI	10.1016/j.energy.2020.118746
通讯作者	Liang, Deqing(liangdq@ms.giec.ac.cn)
英文摘要	Low dosage hydrate inhibitor (LDHI) is an effective choice to prevent hydrate formation and blockage in petroleum and natural gas processing industry. This study investigated the effect of dodecyl dimethyl benzyl ammonium chloride (DDBAC) on CH4 hydrate growth and agglomeration in oil-water systems. Hydrate formation kinetics and torque changes were determined with the isothermal-isochoric method. The kinetic experimental results revealed that 0.35 wt% DDBAC exerted a strong and stable inhibition effect on CH4 hydrate growth, represented by long induction time and low gas uptake amount. The chemical affinity modeling calculation results showed that DDBAC decreased normalized hydrate formation rate and increased the kinetic equilibrium time. The torque changes demonstrated that anti agglomeration effect strengthened with the increase of DDBAC mass fraction. In addition, the mechanism of CH4 hydrate formation in studied system was proposed combining the experimental results, hydrate morphology and DDBAC's properties. It showed that DDBAC could hinder gas dissolution in oil phase, separate hydrate particles from each other and make hydrate surface soft. These results are of fundamental value in developing LDHI and understanding the mechanism of hydrate formation, which are essential in preventing hydrate blockage and ensuring safety production of oil and gas. (c) 2020 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[51976227] ; Guangdong MEPP Fund[GDOE[2019]A39] ; Guangdong MEPP Fund[GDOE[2019]A54] ; Youth Innovation Promotion Association CAS[2020344] ; National key research and development plan of China[2017YFC0307306]
WOS关键词	ANTI-AGGLOMERATION ; INDUCTION TIME ; FORMATION KINETICS ; CRUDE-OIL ; METHANE ; GAS ; INHIBITION ; PERFORMANCE ; LIQUID ; DISSOCIATION
WOS研究方向	Thermodynamics ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000596116800012
资助机构	National Natural Science Foundation of China ; Guangdong MEPP Fund ; Youth Innovation Promotion Association CAS ; National key research and development plan of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/32382]
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.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.State Key Lab Nat Gas Hydrate, Beijing 100028, Peoples R China 4.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Shi, Lingli,He, Yong,Lu, Jingsheng,et al. Effect of dodecyl dimethyl benzyl ammonium chloride on CH4 hydrate growth and agglomeration in oil-water systems[J]. ENERGY,2020,212:11.
APA	Shi, Lingli,He, Yong,Lu, Jingsheng,&Liang, Deqing.(2020).Effect of dodecyl dimethyl benzyl ammonium chloride on CH4 hydrate growth and agglomeration in oil-water systems.ENERGY,212,11.
MLA	Shi, Lingli,et al."Effect of dodecyl dimethyl benzyl ammonium chloride on CH4 hydrate growth and agglomeration in oil-water systems".ENERGY 212(2020):11.