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Kinetic studies of gas hydrate formation with low-dosage hydrate inhibitors
Tang CuiPing1,2; Dai XingXue1,2; Du JianWei1,2; Li DongLiang1,2; Zang XiaoYa1,2; Yang XiangYang1; Liang DeQing1
2010-12-01
发表期刊SCIENCE CHINA-CHEMISTRY
ISSN1674-7291
卷号53期号:12页码:2622-2627
产权排序[Tang CuiPing; Dai XingXue; Du JianWei; Li DongLiang; Zang XiaoYa; Yang XiangYang; Liang DeQing] Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China; [Tang CuiPing; Dai XingXue; Du JianWei; Li DongLiang; Zang XiaoYa] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
通讯作者liangdq@ms.giec.ac.cn
摘要Pipeline blockage by gas hydrates is a serious problem in the petroleum industry. Low-dosage inhibitors have been developed for its cost-effective and environmentally acceptable characteristics. In a 1.072-L reactor with methane, ethane and propane gas mixture under the pressure of about 8.5 MPa at 4 A degrees C, hydrate formation was investigated with low-dosage hydrate inhibitors PVP and GHI1, the change of the compressibility factor and gas composition in the gas phase was analyzed, the gas contents in hydrates were compared with PVP and GHI1 added, and the inhibition mechanism of GHI1 was discussed. The results show that PVP and GHI1 could effectively inhibit the growth of gas hydrates but not nucleation. Under the experimental condition with PVP added, methane and ethane occupied the small cavities of the hydrate crystal unit and the ability of ethane entering into hydrate cavities was weaker than that of methane. GHI1 could effectively inhibit molecules which could more readily form hydrates. The ether and hydroxy group of diethylene glycol monobutyl ether have the responsibility for stronger inhibition ability of GHI1 than PVP.
文章类型Article
其他摘要Pipeline blockage by gas hydrates is a serious problem in the petroleum industry. Low-dosage inhibitors have been developed for its cost-effective and environmentally acceptable characteristics. In a 1.072-L reactor with methane, ethane and propane gas mixture under the pressure of about 8.5 MPa at 4 A degrees C, hydrate formation was investigated with low-dosage hydrate inhibitors PVP and GHI1, the change of the compressibility factor and gas composition in the gas phase was analyzed, the gas contents in hydrates were compared with PVP and GHI1 added, and the inhibition mechanism of GHI1 was discussed. The results show that PVP and GHI1 could effectively inhibit the growth of gas hydrates but not nucleation. Under the experimental condition with PVP added, methane and ethane occupied the small cavities of the hydrate crystal unit and the ability of ethane entering into hydrate cavities was weaker than that of methane. GHI1 could effectively inhibit molecules which could more readily form hydrates. The ether and hydroxy group of diethylene glycol monobutyl ether have the responsibility for stronger inhibition ability of GHI1 than PVP.
关键词Gases Hydrate Low Dosage Hydrate Inhibitors Formation Time
学科领域Chemistry
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s11426-010-4145-2
研究领域[WOS]Chemistry
URL查看原文
关键词[WOS]POLYMER
收录类别SCI
语种英语
项目资助者National Natural Science Foundation of China [50906087]
WOS类目Chemistry, Multidisciplinary
WOS记录号WOS:000285366200026
引用统计
被引频次:8[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/8464
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714
Tang CuiPing,Dai XingXue,Du JianWei,et al. Kinetic studies of gas hydrate formation with low-dosage hydrate inhibitors[J]. SCIENCE CHINA-CHEMISTRY,2010,53(12):2622-2627.
APA Tang CuiPing.,Dai XingXue.,Du JianWei.,Li DongLiang.,Zang XiaoYa.,...&Liang DeQing.(2010).Kinetic studies of gas hydrate formation with low-dosage hydrate inhibitors.SCIENCE CHINA-CHEMISTRY,53(12),2622-2627.
MLA Tang CuiPing,et al."Kinetic studies of gas hydrate formation with low-dosage hydrate inhibitors".SCIENCE CHINA-CHEMISTRY 53.12(2010):2622-2627.
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