聚乙烯吡咯烷酮与醚类化合物对水合物生成协同作用  

Characteristics of hydrate formation under synergistic action of polyvinylpyrrolidone and ethers

作　　者：付井琦 潘振[1] 陈晓峰 FU Jingqi;PAN Zhen;CHEN Xiaofeng(School of Petroleum and Natural Gas Engineering,Liaoning Petrochemical University,Fushun 113001,Liaoning Province,China;National Oil and Gas Pipeline Network Group Co.,Ltd.,Shandong Branch,Jinan 250000,Shandong Province,China)

机构地区：[1]辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001 [2]国家石油天然气管网集团有限公司山东省分公司,山东济南250000

出　　处：《化学工程》2024年第10期70-76,共7页Chemical Engineering(China)

基　　金：辽宁省教育厅重点科研项目(L2020002);辽宁省教育厅基本科研项目(LJKMZ20220740);辽宁省教育厅2021年度科学研究经费面上项目(LJKZ0381)。

摘　　要：基于高压流动环路装置,探究DGBE(二乙二醇丁醚)、PM(丙二醇甲醚)以及EPH(乙二醇苯醚)和动力学抑制剂PVP(聚乙烯吡咯烷酮)对于CO_(2)水合物生成特性的协同抑制作用。通过实验得到流动状态下添加单动力学抑制剂和单醚类协同剂体系的诱导时间,相对抑制性能因子I RP和水合物的初始生成速率,并与动力学抑制剂和协同剂复合体系下的相关参数进行对比。结果表明:3种协同剂对PVP的抑制性能均有促进作用,促进效果最优的为EPH,稍弱的为PM,最弱的为DGBE。抑制剂和协同剂复配、添加剂质量分数的增加均可以降低水合物初始生成速率,同时质量分数的增加对于初始生成速率减缓效果有一定的限度。体系中油相的存在会削弱动力学抑制剂-协同剂体系中的抑制性能。最后提出PVP与醚类化合物的协同抑制机理。Based on the high-pressure flow loop device,the synergistic inhibition of DGBE(diethylene glycol butyl ether),PM(propylene glycol methyl ether),EPH(ethylene glycol phenyl ether)and kinetic inhibitor PVP(polyvinylpyrrolidone)on the formation of CO_(2)hydrate was investigated.The induction time,the relative inhibition performance factor I RP and the initial formation rate of hydrate were obtained by experiments,and compared with the relevant parameters of the compound system of kinetic inhibitor and synergist.The results show that the three synergists can promote the inhibition of PVP,and the best one is EPH,the weaker one is PM,and the weakest is DGBE.The combination of inhibitor and synergist and the increase of additive mass fraction can reduce the initial hydrate formation rate.At the same time,the increase of mass fraction has a certain limit to slow down the initial formation rate.The existence of oil phase in the system can weaken the inhibition performance in the kinetic inhibitor-synergist system.Finally,the synergistic inhibition mechanism of PVP and ethers is proposed.

关 键 词：CO_(2)水合物 抑制剂 醚类化合物 协同 

分 类 号：TE83[石油与天然气工程—油气储运工程]