Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Evaluation of Kinetic Inhibition of Methane Hydrate Formation by a Copolymer of N-Vinylcaprolactam with 1-Vinylimidazole | |
Long, Zhen1,2,3,4; Lu, Zhilin1,2,3,4,5; Ding, Qihang1,2,3,4,5; Zhou, Xuebing1,2,3,4; Lei, Jiao6; Liang, Deqing1,2,3,4
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| 2019-10-01 | |
| Source Publication | ENERGY & FUELS
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| ISSN | 0887-0624 |
| Volume | 33Issue:10Pages:10133-10142 |
| Corresponding Author | Liang, Deqing(liangdq@ms.giec.ac.cn) |
| Abstract | This study investigated methane hydrate inhibition by a new polyvinyl lactam-based kinetic hydrate inhibitor (KHI) by determining the maximum subcooling temperature, induction time, and growth rate using a high-pressure sapphire reactor. The studied KHI, namely, the random copolymer of N-vinylcaprolactam and 1-vinylimidazole (PVCap-co-VIM), was synthesized by free radical solution polymerization with the objective of producing copolymers with higher cloud points than the poly(N-vinylcaprolactam) (PVCap) homopolymer. These data were compared with those of laboratory-made PVCap and commercial poly(N-vinylpyrrolidone) (PVPK90) under various cooling rates (1.0, 2.0, and 5.0 K/h) and mass concentrations (0.5, 1.0, and 2.0 wt %). The experimental results showed that the cooling rate had little effect on the maximum subcooling temperature of the KHIs. PVCap-co-VIM was capable of delaying the nucleation of hydrate crystals for a longer time than PVPK90 and successfully suppressed hydrate growth in the early stage of hydrate formation. PVCap performed better than PVCap-co-VIM under the same conditions, but PVCap-co-VIM exhibited a significantly higher cloud point temperature (T-CI > 70 degrees C) than PVCap (T-CI = 37.9 degrees C), which was beneficial for field applications. Furthermore, the measured powder X-ray diffraction and Raman spectral data showed that the formed hydrate structures were the same (structure I) for all the studied KHI-containing systems, despite some differences in the characteristic peak intensities as a result of different inhibitory activities. Cryo-scanning electron microscopy images illustrated that the morphology of the formed CH4 hydrate crystals varied significantly by KHIs, which could be helpful for safe pipeline fluid transportation. |
| DOI | 10.1021/acs.energyfuels.9b01935 |
| WOS Keyword | GAS HYDRATE ; CRYSTAL-GROWTH ; CH4 HYDRATE ; PERFORMANCE ; POLYMERS ; PRESERVATION ; GLYCOL ; WATER |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51506202] ; National Natural Science Foundation of China[41603062] ; Pearl River S&T Nova Program of Guangzhou[201806010114] ; National Key Research and Development Plan of China[2017YFC0307306] |
| WOS Research Area | Energy & Fuels ; Engineering |
| Funding Organization | National Natural Science Foundation of China ; Pearl River S&T Nova Program of Guangzhou ; National Key Research and Development Plan of China |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000492113000098 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/26194 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Liang, Deqing |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China 5.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China 6.Univ Sci & Technol China, State Key Lab Fire Sci, Hefei 230026, Anhui, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Long, Zhen,Lu, Zhilin,Ding, Qihang,et al. Evaluation of Kinetic Inhibition of Methane Hydrate Formation by a Copolymer of N-Vinylcaprolactam with 1-Vinylimidazole[J]. ENERGY & FUELS,2019,33(10):10133-10142. |
| APA | Long, Zhen,Lu, Zhilin,Ding, Qihang,Zhou, Xuebing,Lei, Jiao,&Liang, Deqing.(2019).Evaluation of Kinetic Inhibition of Methane Hydrate Formation by a Copolymer of N-Vinylcaprolactam with 1-Vinylimidazole.ENERGY & FUELS,33(10),10133-10142. |
| MLA | Long, Zhen,et al."Evaluation of Kinetic Inhibition of Methane Hydrate Formation by a Copolymer of N-Vinylcaprolactam with 1-Vinylimidazole".ENERGY & FUELS 33.10(2019):10133-10142. |
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