Investigation into the Inhibition of Methane Hydrate Formation in the Presence of Hydroxy- and Esteryl-Terminated Poly(N-vinylcaprolactam)
文献类型：期刊论文
| 作者 | Tang, Cuiping2,3,4 ; Zhang, Yanan1,2,3,4; Liang, Deqing2,3,4
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| 刊名 | ENERGY & FUELS
 |
| 出版日期 | 2022-04-07 |
| 卷号 | 36期号:7页码:3848-3856 |
| ISSN号 | 0887-0624 |
| DOI | 10.1021/acs.energyfuels.1c04438 |
| 通讯作者 | Liang, Deqing(liangdq@ms.giec.ac.cn) |
| 英文摘要 | Adding hydrate inhibitors is an important method to prevent gas hydrates from blocking oil and gas pipelines and ground equipment. In this work, on the basis of polyvinyl caprolactam (PVCap), an ester group and a hydroxyl group were introduced into the molecular chain end of PVCap to synthesize a blocked modified inhibitor, Es-PVCap-OH. Fourier transform infrared spectroscopy, H-1 NMR, and gel permeation chromatography methods were used to characterize PVCap and Es-PVCap-OH. The inhibition performance of Es-PVCap-OH for the formation of methane hydrate was studied and compared with that of the kinetic inhibitor PVCap. Powder X-ray diffraction, Raman spectroscopy, and cryogenic scanning electron microscopy (cryo-SEM) were used to characterize the microstructure of methane hydrate. The results showed that Es-PVCap-OH had better kinetic hydrate inhibitor performance and higher maximum subcooling than PVCap at the same concentration for methane gas hydrate formation. With 1 wt % Es-PVCap-OH solution, the induction time of hydrate formation increased by about 1400 min compared with that of the pure water system. Es-PVCap-OH selectively acts on specific hydrate crystal planes and affects the relative peak intensities of crystal planes. The addition of Es-PVCap-OH can substantially reduce the occupancy ratio of methane in the large cages of the hydrate lattice and change the morphology of the hydrate from submicron pores to a scaly cluster. |
| WOS关键词 | KINETIC HYDRATE ; GAS-HYDRATE ; PERFORMANCE ; DISSOCIATION ; PRESERVATION ; TEMPERATURE ; EQUILIBRIA ; PREDICTION ; DEPENDENCE |
| 资助项目 | National Natural Science Foundation of China[51876211] ; Guangdong Special Support Program-local innovation and entrepreneurship team project[2019BT02L278] ; Natural Science Foundation of Guangdong Province[2021A1515110698] ; Fund of Key Laboratory of Gas Hydrate Chinese Academy of Sciences[E129020301] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000797939400038 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; Guangdong Special Support Program-local innovation and entrepreneurship team project ; Natural Science Foundation of Guangdong Province ; Fund of Key Laboratory of Gas Hydrate Chinese Academy of Sciences |
| 源URL | [http://ir.giec.ac.cn/handle/344007/36608]  |
| 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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.CAS Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Cuiping,Zhang, Yanan,Liang, Deqing. Investigation into the Inhibition of Methane Hydrate Formation in the Presence of Hydroxy- and Esteryl-Terminated Poly(N-vinylcaprolactam)[J]. ENERGY & FUELS,2022,36(7):3848-3856. |
| APA | Tang, Cuiping,Zhang, Yanan,&Liang, Deqing.(2022).Investigation into the Inhibition of Methane Hydrate Formation in the Presence of Hydroxy- and Esteryl-Terminated Poly(N-vinylcaprolactam).ENERGY & FUELS,36(7),3848-3856. |
| MLA | Tang, Cuiping,et al."Investigation into the Inhibition of Methane Hydrate Formation in the Presence of Hydroxy- and Esteryl-Terminated Poly(N-vinylcaprolactam)".ENERGY & FUELS 36.7(2022):3848-3856. |
入库方式： OAI收割
来源：广州能源研究所
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