CO2驱替CH4置换效率测试与分析

doi:10.16265/j.cnki.issn1003-3033.2020.02.002

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (2): 8-13.doi: 10.16265/j.cnki.issn1003-3033.2020.02.002

CO₂驱替CH₄置换效率测试与分析

周西华^1,2 教授, 姜鹏飞^**1,2, 白刚^1,2, 牛玉平^1,2

1.辽宁工程技术大学安全科学与工程学院,辽宁阜新 123000;
2.辽宁工程技术大学矿山热动力灾害与防治教育部重点实验室,辽宁阜新 123000

收稿日期:2019-11-25 修回日期:2020-01-13 出版日期:2020-02-28 发布日期:2021-01-25
通讯作者: **姜鹏飞(1996—),男,黑龙江牡丹江人,硕士研究生,主要研究方向为火灾与瓦斯灾害防治。E-mail:jiang652053601@163.com。
作者简介:周西华(1968—),男,安徽淮北人,博士,教授,博士生导师,主要从事煤矿火灾防治、瓦斯防治、高温热害防治专业的教学与科研工作。E-mail:xihua_zhou68@163.com。
基金资助:
国家重点研发计划项目(2018YFC0807900);辽宁省教育厅重点项目(LJCL001);辽宁省教育厅青年项目(LJ2019QL002)。

Test and analysis of displacement efficiency of CO₂ replacing CH₄

ZHOU Xihua^1,2, JIANG Pengfei^1,2, BAI Gang^1,2, NIU Yuping^1,2

1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China;
2. Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education, Liaoning Technical University, Fuxin Liaoning 123000, China

Received:2019-11-25 Revised:2020-01-13 Online:2020-02-28 Published:2021-01-25

摘要/Abstract

摘要： 为研究多因素耦合对CO₂驱替CH₄置换效率的影响,选取潞安集团常村煤矿煤样,利用自主研发物理模拟试验平台测定置换效率,并采用Design Expert软件设计Box-Behnken试验,构建置换效率在三因素、三水平条件下的二次回归响应曲面模型,分析了煤体含水率、注气压强及注入温度三因素耦合对置换效率的影响。结果表明:置换效率随注气压强和注入温度增大而增大,随含水率增大而减小;对置换效率影响程度为含水率＞注气压强＞注入温度;二次项影响程度为注气压强和注入温度＞注入温度和含水率＞注气压强和含水率,且注气压强和注入温度间存在交互作用,注气压强和含水率、注入温度和含水率之间无交互作用。

关键词: 多因素耦合, CO₂驱替CH₄, 置换效率, 响应曲面, 交互作用

Abstract: In order to study influence of multifactor coupling on displacement efficiency of CO₂ replacing CH₄, with coal samples from Changcun coal mine of Lu'an coal group selected as an example, displacement efficiency was measured by using independently developed physical simulation platform. Then, Box-Behnken test design was carried out with Design Expert software, and a quadratic regression response surface model of displacement efficiency was established under conditions of three factors and three levels. Finally, coupling influence of water content, gas injection pressure and injection temperature was analyzed. The results show that displacement efficiency will increase with the increase of gas injection pressure and injection temperature, and will decrease with the increase of water content. They rank as water content >gas injection pressure > injection temperature according to their influence degree, and injection pressure and injection temperature> injection temperature and water content> injection pressure and water content according to that in quadratic term. Meanwhile, there is interaction between injection pressure and injection temperature, but no interaction between any of them and water content.

Key words: multifactor coupling, CO₂ replacing CH₄, displacement efficiency, response surface, interaction

中图分类号:

X936

周西华, 姜鹏飞, 白刚, 牛玉平. CO₂驱替CH₄置换效率测试与分析[J]. 中国安全科学学报, 2020, 30(2): 8-13.

ZHOU Xihua, JIANG Pengfei, BAI Gang, NIU Yuping. Test and analysis of displacement efficiency of CO₂ replacing CH₄[J]. China Safety Science Journal, 2020, 30(2): 8-13.

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CO₂驱替CH₄置换效率测试与分析

Test and analysis of displacement efficiency of CO₂ replacing CH₄

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