Performance of Poly(N-isopropylacrylamide)-Based Kinetic Hydrate Inhibitors for Nucleation and Growth of Natural Gas Hydrates
Performance of Poly(N-isopropylacrylamide)-Based Kinetic Hydrate Inhibitors for Nucleation and Growth of Natural Gas Hydrates
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聚（N-异丙基丙烯酰胺）基动态水合物抑制剂对天然气水合物成核和生长的性能
DOI：
10.1021/acs.energyfuels.6b03369
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Y. Seo
中科院分区：
文献类型：
--
作者：
J. Park;Kelly Cristine da Silveira;Qi Sheng;C. Wood;Y. Seo
海上管线的水合物预防策略现在正转向水合物风险管理，方法是使用称为动力学水合物抑制剂(KHIS)的水溶性聚合物来延缓水合物的成核和生长。研究了三种聚N-异丙基丙烯酰胺(PNIPAm-co-AA)、poly(N-isopropylacrylamide-co-cyclopentylamine(PNIPAm-co-CP)和聚(N-异丙基丙烯酰胺-co-叔丁胺(PNIPAm-co-C4t))KHIS的水合物抑制性能。将这些数据与三个对照组[水、Luvicap溶液和聚乙烯吡咯烷酮]在不同冷却速度(0.25K/分钟、0.033 K/分钟和0.017 K/分钟)下进行比较。结果表明，在不同降温速率下的起始时间，KHI候选物的存在延迟了水合物晶体的成核。讨论了KHI候选物对水合物GR的影响。
Hydrate prevention strategies for offshore flowlines are now moving toward hydrate risk management by delaying its nucleation and growth using water-soluble polymers, known as kinetic hydrate inhibitors (KHIs). This study investigates the natural gas hydrate inhibition performance of three poly(N-isopropylacrylamide) (PNIPAM)-based KHIs [poly(N-isopropylacrylamide-co-acrylic acid (PNIPAM-co-AA), poly(N-isopropylacrylamide-co-cyclopentylamine (PNIPAM-co-Cp), and poly(N-isopropylacrylamide-co-tert-butylamine (PNIPAM-co-C4t)] by determining the hydrate onset time, growth rate, and resistance to flow using a high-pressure autoclave. These data are compared to three control groups [water, Luvicap solution, and polyvinylpyrrolidone (PVP)] under various cooling rates (0.25, 0.033, and 0.017 K/min). The results show that the nucleation of hydrate crystals was delayed in the presence of the KHI candidates as assessed using the onset time at different cooling rates. The effect of the KHI candidate on the hydrate gr...