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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
Source PublicationSCIENCE CHINA-CHEMISTRY
ISSN1674-7291
Volume53Issue:12Pages:2622-2627
Contribution Rank[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
Corresponding Authorliangdq@ms.giec.ac.cn
AbstractPipeline 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.
SubtypeArticle
Other AbstractPipeline 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.
KeywordGases Hydrate Low Dosage Hydrate Inhibitors Formation Time
Subject AreaChemistry
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s11426-010-4145-2
WOS Subject ExtendedChemistry
URL查看原文
WOS KeywordPOLYMER
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China [50906087]
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000285366200026
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/8464
Collection中国科学院广州能源研究所
Affiliation1.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
Recommended Citation
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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