典型文献
Synthesis and evaluation of poly(N-vinyl caprolactam)-co-tert-butyl acrylate as kinetic hydrate inhibitor
文献摘要：
Low dosage kinetic hydrate inhibitors(KHIs)are a kind of alternative chemical additives to high dosage thermodynamic inhibitors for preventing gas hydrate formation in oil&gas production wells and trans-portation pipelines.In this paper,a new KHI,poly(N-vinyl caprolactam)-co-tert-butyl acrylate(PVCap-co-TBA),was successfully synthesized with N-vinyl caprolactam(NVCap)and tert-butyl acrylate.The kinetic inhibition performances of PVCap-co-TBA on the formations of both structure I methane hydrate and structure Ⅱ natural gas hydrate were investigated by measuring the onset times of hydrate formation under different conditions and compared with commercial KHIs such as PVP,PVCap and inhibex 501.The results indicated that PVCap-co-TBA outperformed these widely applied inhibitors for both structure Ⅰand structure Ⅱ hydrates.At the same dosage of KHI,the maximum tolerable degree of subcooling under which the onset time of hydrate formation exceeded 24 hours for structure Ⅰ hydrate was much lower than that for structure Ⅱ hydrate.The inhibition strength increased with the increasing dosage of PVCap-co-TBA;The maximum tolerable degree of subcooling for the natural gas hydrate is more than 10 K when the dosage was higher than 0.5％(mass)while it achieved 12 K when that dosage rose to 0.75％(mass).Additionally,we found polypropylene glycol could be used as synergist at the dosage of 1.0％(mass)or so,under which the kinetic inhibition performance of PVCap-co-TBA could be improved significantly.All evaluation results demonstrated that PVCap-co-TBA was a very promising KHI and a competitive alternative to the existing commercial KHIs.
文献关键词：
中图分类号：
作者姓名：
Xing Huang;Ran Zhu;Liwei Cheng;Yijian Zhu;Peng Xiao;Xiaohui Wang;Bei Liu;Changyu Sun;Weixin Pang;Qingping Li;Guangjin Chen;Xinjing Xu;Jinfeng Ji
作者机构：
State Key Laboratory of Natural Gas Hydrates/College of Chemical Engineering and Environment,China University of Petroleum,Beijing 102249,China;College of Chemistry and Chemical Engineering,Neijiang Normal University,Neijiang 641100,China;Faculty of Engineering,China University of Geosciences,Wuhan 430074,China;State Key Laboratory of Natural Gas Hydrate,CNOOC,Beijing 100010,China;Hainan Longpan Oilfield Technology Co.,Ltd,Hainan 571900,China
文献出处：
引用格式：
[1]Xing Huang;Ran Zhu;Liwei Cheng;Yijian Zhu;Peng Xiao;Xiaohui Wang;Bei Liu;Changyu Sun;Weixin Pang;Qingping Li;Guangjin Chen;Xinjing Xu;Jinfeng Ji-.Synthesis and evaluation of poly(N-vinyl caprolactam)-co-tert-butyl acrylate as kinetic hydrate inhibitor)[J].中国化学工程学报（英文版）,2022(10):317-325
A类：
caprolactam,KHIs,PVCap,NVCap,inhibex,subcooling,synergist
B类：
Synthesis,evaluation,vinyl,tert,butyl,acrylate,kinetic,Low,dosage,inhibitors,kind,alternative,chemical,additives,thermodynamic,preventing,gas,oil,production,wells,trans,portation,pipelines,In,this,paper,new,TBA,was,successfully,synthesized,inhibition,performances,formations,both,structure,methane,natural,were,investigated,by,measuring,onset,times,under,different,conditions,compared,commercial,such,PVP,results,indicated,that,outperformed,these,widely,applied,hydrates,At,same,maximum,tolerable,degree,which,exceeded,hours,much,lower,strength,increased,increasing,more,when,higher,mass,while,achieved,rose,Additionally,found,polypropylene,glycol,could,used,so,improved,significantly,All,demonstrated,very,promising,competitive,existing
AB值：
0.368471
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