Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| 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 Publication | SCIENCE CHINA-CHEMISTRY
 |
| ISSN | 1674-7291 |
| Volume | 53Issue: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 Author | liangdq@ms.giec.ac.cn |
| Abstract | 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. |
| Subtype | Article |
| Other Abstract | 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. |
| Keyword | Gases Hydrate Low Dosage Hydrate Inhibitors Formation Time |
| Subject Area | Chemistry |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1007/s11426-010-4145-2 |
| WOS Subject Extended | Chemistry |
| URL | 查看原文 |
| WOS Keyword | POLYMER |
| Indexed By | SCI |
| Language | 英语 |
| Funding Organization | National Natural Science Foundation of China [50906087] |
| WOS Subject | Chemistry, Multidisciplinary |
| WOS ID | WOS:000285366200026 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/8464 |
| Collection | 中国科学院广州能源研究所 |
| Affiliation | 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 |
| 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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