EXPERIMENTAL STUDY ON THE INHIBITION MECHANISM OF CH4 HYDRATE FORMATION BY PVCap

被引：0

作者：

Ding, Tingji ^{[1
,2
]}

Wang, Ruihe ^{[1
,3
]}

Xu, Jiafang ^{[1
,2
,3
]}

Zhang, Xue ^{[1
,4
]}

Meng, Zhiwei ^{[1
]}

Wang, Xiaohui ^{[1
]}

Xue, Jiawen ^{[1
]}

机构：

[1] China Univ Petr East China, Sch Petr Engn, Qingdao 266580, Peoples R China

[2] China Univ Petr East China, Shandong Key Lab Oilfield Chem, Qingdao 266580, Peoples R China

[3] China Univ Petr East China, Minist Educ, Key Lab Unconvent Oil & Gas Dev, Qingdao 266580, Peoples R China

[4] Zhucheng Sci & Technol Bur, Weifang 262200, Peoples R China

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 2022年 / 31卷 / 11期

基金：

中国国家自然科学基金;

关键词：

CH4; hydrate; Kinetic inhibitor; PVCap; Inhibition performance; Molecular weight; GAS-HYDRATE; PHASE-EQUILIBRIA;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Kinetic inhibitors have the advantages of low cost, small dosage and good effect. Thus, they have great development prospects in the field of natural gas hydrate prevention and control. However, its inhibition mechanism is not clear enough, which severely limits the development and application of kinetic inhibitors. In this paper, the hypothesis of PVCap inhibition of CH4 dissolution is verified by experiments, and the influence of its concentration and molecular weight on the inhibition effect is explored. And the following experimental results are obtained. PVCap inhibits hydrate nucleation by slowing down the dissolution of CH4 before hydrate induced nucleation. And the higher the concentration and molecular weight of PVCap, the more obvious the effect of inhibiting CH4 dissolution and the stronger the ability to inhibit hydrate nucleation and growth.

引用

页码：11162 / 11170

页数：9

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