Synergy Effect Study of Poly(N-isoacrylamide) with Tetra Butyl Phosphonium Bromide on Methane Hydrate Formation
Synergy Effect Study of Poly(N-isoacrylamide) with Tetra Butyl Phosphonium Bromide on Methane Hydrate Formation
复制标题
聚N-异丙烯酰胺与四丁基溴化鏻对甲烷水合物形成的协同效应研究
DOI：
10.1016/j.egypro.2019.01.585
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Ju Dong Lee
中科院分区：
文献类型：
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作者：
S. Seo;H. Paik;K. Kang;M. Kelland;Ju Dong Lee
天然气水合物封堵是石油和天然气工业，特别是海底油田的成本高且具有挑战性的问题之一。以低成本防止气体水合物形成的一种方法是使用低剂量水合物抑制剂（LDHI）。具有酰胺基的聚（N-异丙基甲基丙烯酰胺）（PNIPAM）此前已被证明是一种出色的低剂量水合物抑制剂（LDHI）。PNIPAM通常通过自由基聚合来聚合，这可以允许控制分子量。我们已经合成了PNIPAM使用控制自由基聚合提供了一个相当高的聚合度控制。此外，将各种动力学水合物抑制剂（KHI）与聚合物水合物抑制剂PNIPAM一起作为CH 4水合物抑制剂进行测试。此外，为了检查四丁基溴化鏻（TBPB）、PNIPAM和它们的混合物作为甲烷气体水合物形成的KHI进行了测试。在本文中，我们提出了各种聚合物抑制剂在KHI测试中的性能在搅拌高压釜中的甲烷气体和结构I水合物的形成。当单独使用PNIPAM作为单一KHI时，PNIPAM在本研究中测试的KHI中表现出最差的性能。而TBPB与PNIPAM的混合则进一步延长了CH 4水合物的诱导期，降低了CH 4水合物的生长速率。TBPB与PNIPAM的共混物对I型结构的CH 4水合物生成具有良好的抑制作用。综上所述，TBPB-PNIPAM混合物具有很好的防止甲烷水合物生成的能力，具有很好的实现油气开采技术工业化应用的潜力，是能源开采领域一项有意义的发现。
Natural gas hydrate plugging is one of the costly and challenging problems for the oil and gas industry, especially for subsea fields. One way to prevent gas hydrate formation at low cost is the use of low-dosage hydrate inhibitors (LDHI). Poly(N-isopropylmethacrylamide) (PNIPAM) with amide group have previously been shown to be an outstanding low-dosage hydrate inhibitor (LDHI). PNIPAMs are usually polymerized via radical polymerization, which can allow control over the molecular weight. We have synthesized PNIPAMs using control radical polymerization giving a fairly high degree of polymerization control. Additionally various Kinetic Hydrate Inhibitors (KHIs) were tested as CH4hydrate inhibitors with polymeric hydrate inhibitor, PNIPAM. Furthermore, to check the synergetic effects of tetra butyl phosphonium bromide (TBPB), PNIPAM and their mixture TBPB-PNIPAM were tested as KHIs for methane gas hydrate formation. In this paper we present results on the performance of various polymeric inhibitors in KHI tests on methane gas in stirred autoclaves and on structure I hydrate formation. When PNIPAM alone was used as a single KHI, PNIPAM exhibited worst performance among the KHIs tested in this study. However the mixing of TBPB with PNIPAM further extended the induction time and reduced the CH4hydrate growth rate. TBPB was an excellent synergist in blends with PNIPAM for kinetic hydrate inhibition of structure I forming CH4hydrate. In summary, the mixture TBPB-PNIPAM was proven that great synergist for prevent the CH4hydrate and good potential in achieving the industrial application of Oil & Gas production technology and therefore was a significantly meaningful discovery in the field of energy production.