|本期目录/Table of Contents|

[1]于志金,徐勇,谷雨,等.30 ℃下煤对不同比例CO2-N2混合气体吸附量差异性研究*[J].中国安全生产科学技术,2023,19(5):80-85.[doi:10.11731/j.issn.1673-193x.2023.05.011]
　YU Zhijin,XU Yong,GU Yu,et al.Research on difference in adsorption capacity of coal to CO2-N2 gas mixture with different proportions at 30 ℃[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2023,19(5):80-85.[doi:10.11731/j.issn.1673-193x.2023.05.011]
点击复制

30 ℃下煤对不同比例CO2-N2混合气体吸附量差异性研究*
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
19
期数:
2023年5期
页码:
80-85
栏目:
职业安全卫生管理与技术
出版日期:
2023-05-31

文章信息/Info

Title:
Research on difference in adsorption capacity of coal to CO2-N2 gas mixture with different proportions at 30 ℃
文章编号:
1673-193X(2023)-05-0080-06
作者:
于志金; 徐勇; 谷雨; 张志鹏
(西安科技大学 安全科学与工程学院，陕西 西安710054)
Author(s):
YU Zhijin;  XU Yong;  GU Yu;  ZHANG Zhipeng
(Department of Safety Science and Engineering,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China)
关键词:
煤; CO2; N2; 吸附量
Keywords:
coal;  CO2;  N2;  adsorption capacity
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2023.05.011
文献标志码:
A
摘要:
为了研究煤体对不同配比CO2-N2混合气体与100%浓度CO2、N2吸附量之间的差异性，提出以无烟煤、褐煤、烟煤为实验煤样，采用高压吸附仪研究30 ℃下不同配比惰气的吸附量。研究结果表明：在0.5 MPa下，无烟煤吸附100%CO2吸附量分别是90%CO2+10%N2、70%CO2+30%N2、30%CO2+70%N2、10%CO2+90%N2、100%N2的1.1，1.5，4.0，4.8，6.0倍；烟煤对不同比例混合气体的吸附规律与无烟煤相似，CO2占比高于70%时，各气样吸附量之间差值较小，而CO2占比由70%降至30%时，吸附量会明显下降；对于褐煤，纯CO2吸附量是90%CO2+10%N2的2.8倍，并随着CO2占比下降，各比例混合气体间吸附量差值逐渐增大。随着吸附压力增大，各煤样不同配比气样的吸附量差值逐渐减小。研究结果可为注惰防灭火技术提供新思路。
Abstract:
In order to study the difference in the adsorption capacities of coal to CO2-N2 gas mixture with different proportions and 100% concentration of CO2 and N2,the anthracite,lignite and bituminous coal were used as experimental coal samples,and the adsorption capacities of inert gas with different proportions at 30 ℃ was studied by using the high-pressure adsorption instrument.The results showed that the adsorption capacity of anthracite to 100 % CO2 was 1.1,1.5,4.0,4.8 and 6.0 times that of 90%CO2+10%N2,70%CO2+30%N2,30%CO2+70%N2,10%CO2+90%N2,and 100%N2 under 0.5 MPa,respectively.The adsorption law of bituminous coal to gas mixture with different proportions was similar to that of anthracite.When the proportion of CO2 was higher than 70%,the difference between the adsorption capacity of each gas sample was small,and when the proportion of CO2 decreased from 70% to 30%,the adsorption capacity would decrease significantly.For lignite,the adsorption capacity of pure CO2 was 2.8 times that of 90%CO2+10%N2,and as the proportion of CO2 decreased,the difference in adsorption capacity between gas mixture with different proportions gradually increased.With the increase of adsorption pressure,the difference in adsorption capacity of gas samples with different proportions by coal samples decreased gradually.The research results can provide new ideas for inert gas injection fire prevention technology.

参考文献/References:

［1］邓军,周佳敏,白祖锦,等.瓦斯对煤低温氧化过程微观结构及热反应性的影响研究［J］.煤炭科学技术,2023,51(1):304-312. DENG Jun，ZHOU Jiamin,BAI Zujin,et al.Effect of gas on microstructure and thermal reactivity of coal during low temperature oxidation［J］.Coal Science and Technology,2023,51(1):304-312.
［2］于志金,文虎,陈晓坤,等.大型煤自燃试验的火源演化特征模拟［J］.煤炭科学技术,2017,45(1):89-93,141. YU Zhijin,WEN Hu,CHEN Xiaokun,et al.Simulation on ignition source evolution features of large scale coal spontaneous combustion experiment［J］.Coal Science and Technology,2017,45(1):89-93,141.
［3］秦波涛,仲晓星,王德明,等.煤自燃过程特性及防治技术研究进展［J］.煤炭科学技术,2021,49(1):66-99. QIN Botao,ZHONG Xiaoxing,WANG Deming,et al.Research progress of coal spontaneous combustion process characteristics and prevention technology［J］.Coal Science and Technology,2021,49(1):66-99.
［4］郭军,李帅,蔡国斌,等.采空区隐蔽火源探测及声学法煤温感知新技术探讨［J］.中国安全生产科学技术,2021,17(6):5-11. GUO Jun,LI Shuai,CAI Guobin,et al.Discussion on new technologies of hidden fire source detection and coal temperature sensing by acoustic method for goaf［J］.Journal of Safety Science and Technology,2021,17(6):5-11.
［5］周俊,张志刚.煤矿安全专业化技术服务新模式构建及示范［J］.矿业安全与环保,2018,45(1):52-56. ZHOU Jun,ZHANG Zhigang.Construction and demonstration of a new model of professional technical service for coal mine safety［J］.Mining Safety & Environmental Protection,2018,45(1):52-56.
［6］李晓文,马旭,朱鹏飞,等.煤体理化结构特征及其对瓦斯吸附热力学的影响［J］.煤矿安全,2021,52(3):1-8. LI Xiaowen,MA Xu,ZHU Pengfei,et al.Characteristics of coal physicochemical structure and its effect on thermodynamic of gas adsorption［J］.Safety in Coal Mines,2021,52(3):1-8.
［7］李晓疆,蔚文斌,贾永勇,等.不同粒径下煤样瓦斯吸附热力学特性影响实验研究［J］.矿业安全与环保,2017,44(6):25-30. LI Xiaojiang,WEI Wenbin,JIA Yongyong,et al.Experimental study on effect of thermodynamic characteristics of gas adsorption of coal samples with different particle sizes［J］.Mining Safety & Environmental Protection,2017,44(6):25-30.
［8］邓军,白祖锦,肖旸,等.煤自燃灾害防治技术现状与挑战［J］.煤矿安全,2020,51(10):118-125. DENG Jun,BAI Zujin,XIAO Yang,et al.Present situation and challenge of coal spontaneous combustion disaster prevention and control technology［J］.Safety in Coal Mines,2020,51(10):118-125.
［9］姜奎,王怡,任广意,等.姚桥煤矿8059工作面采空区注CO2防灭火技术参数优化模拟与应用研究［J］.矿业安全与环保,2021,48(3):74-78,84. JIANG Kui,WANG Yi,REN Guangyi,et al.Study on the optimization simulation and application of technical parameters of CO2 injection for fire prevention in goaf in 8059 working face of Yaoqiao coal mine［J］.Mining Safety & Environmental Protection,2021,48(3):74-78,84.
［10］马砺,高宇,杨宏曙.惰气技术在防治尾巷局部火灾中的应用［J］.煤矿安全,2020,51(1):145-149,155. MA Li,GAO Yu,YANG Hongshu.Application of inert gas technology in prevention and control of local fire in tail lane［J］.Safety in Coal Mines,2020,51(1):145-149,155.
［11］高江涛,冉小波,霍宇航,等.常压下CH4/N2/CO2在阜生矿煤样表面吸附热力学研究［J］.煤炭技术,2022,41(8):136-139. GAO Jiangtao,RAN Xiaobo,HUO Yuhang,et al.Thermodynamics study on adsorption of CH4/CO2/N2 on surface of Fusheng coal sample at normal pressure［J］.Coal Technology,2022,41(8):136-139.
［12］撒占友,吴静波,陆卫东,等.注二氧化碳强化煤层气开采研究进展［J］.煤矿安全,2022,53(10):32-43. SA Zhanyou,WU Jingbo,LU Weidong,et al.Research progress of enhanced coal bed methane exploitation by carbon dioxide injection［J］.Safety in Coal Mines,2022,53(10):32-43.
［13］王宇恒,史波波,赵鹏翔,等.复合惰气在采空区遗煤中竞争吸附的分子动力学模拟研究［J］.中国安全生产科学技术,2022,18(9):82-88. WANG Yuheng,SHI Bobo,ZHAO Pengxiang,et al.Study on molecular dynamics simulation of competitive adsorption of compound inert gas in residual coal of goaf［J］.Journal of Safety Science and Technology,2022,18(9):82-88.
［14］江兆龙,周禹军,刘伟,等.煤对CO2,N2和CH4的吸附速率经验公式与异同性研究［J］.中国安全生产科学技术,2020,16(9):83-88. JIANG Zhaolong,ZHOU Yujun,LIU Wei,et al.Study on empirical formula and heterogeneity for adsorption rate of CO2,N2 and CH4 by coal［J］.Journal of Safety Science and Technology,2020,16(9):83-88.
［15］苏现波,宋金星,郭红玉,等.煤矿瓦斯抽采增产机制及关键技术［J］.煤炭科学技术,2020,48(12):1-30. SU Xianbo,SONG Jinxing,GUO Hongyu,et al.Increasing production mechanism and key technology of gas extraction in coal mines［J］.Coal Science and Technology,2020,48(12):1-30.
［16］QIN X J,HAPREET SINGH,CAI J C.Sorption characteristics in coal and shale:a review for enhanced methane recovery［J］.Capillarity,2022,5(1):1-11.
［17］薛海腾,李希建,陈刘瑜.含瓦斯煤吸附特性影响因素研究［J］.矿业研究与开发,2021,41(3):75-79. XUE Haiteng,LI Xijian,CHEN Liuyu.Study on influencing factors of adsorption characteristics of gas bearing coal［J］.Mining Research and Development,2021,41(3):75-79.
［18］FENG Z,ZHOU D,ZHAO Y.Study on the methane adsorption characteristics of coal with heterogeneous potential wells［J］.International Journal of Oil Gas and Coal Technology,2020,23(3):312-324.
［19］王玲玲,王兆丰,霍肖肖,等.高温高压下煤孔隙结构的变化对瓦斯吸附特性的影响［J］.中国安全生产科学技术,2018,14(12):97-101. WANG Lingling,WANG Zhaofeng,HUO Xiaoxiao,et al.Influence of pore structure change on gas adsorption characteristics of coal under high temperature and high pressure［J］.Journal of Safety Science and Technology,2018,14(12):97-101.
［20］王瑞雪.不同变质程度煤对CH4和CO2吸附特征差异的实验研究［D］.徐州：中国矿业大学,2020.
［21］张文静,琚宜文,卫明明,等.不同变质变形煤储层吸附/解吸特征及机理研究进展［J］.地学前缘,2015,22(2):232-242. ZHANG Wenjing,JU Yiwen,WEI Mingming,et al.Study on characteristics and mechanism of adsorption/desorption on different metamorphic deformed coal reservoirs［J］.Earth Science Frontiers,2015,22(2):232-242.
［22］邹祎.SPSS软件单因素方差分析的应用［J］.价值工程,2016,35(34):219-222. ZOU Yi.The analysis of Single-factor variance by SPSS［J］.Value Engineering,2016,35(34):219-222.
［23］牛凯.数据分析之单因素方差分析［J］.产业与科技论坛,2019,18(2):57-58. NIU Kai.Single factor ANOVA of data analysis［J］.Industrial & Science Tribune,2019,18(2):57-58.

相似文献/References:

[1]郑艳敏,张金锋,孙忠强,等.煤低温氧化的实验研究及动力学分析[J].中国安全生产科学技术,2012,8(8):19.
　ZHENG Yan min,ZHANG Jin feng,SUN Zhong qiang,et al.Experimental research and dynamic analysis on lowtemperature oxidation of coal[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2012,8(5):19.
[2]邓存宝,戴凤威,邓汉忠,等.水溶剂效应对煤氧化特性的影响[J].中国安全生产科学技术,2016,12(3):88.[doi:10.11731/j.issn.1673-193x.2016.03.016]
　DENG Cunbao,DAI Fengwei,DENG Hanzhong,et al.Influence of water solvent effect on oxidation characteristics of coal[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(5):88.[doi:10.11731/j.issn.1673-193x.2016.03.016]
[3]邓存宝,戴凤威,邓汉忠,等.水溶剂效应对煤氧化特性的影响[J].中国安全生产科学技术,2016,12(2):88.[doi:10.11731/j.issn.1673-193x.2016.03.016]
　DENG Cunbao,DAI Fengwei,DENG Hanzhong,et al.Influence of water solvent effect on oxidation characteristics of coal[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(5):88.[doi:10.11731/j.issn.1673-193x.2016.03.016]
[4]高飞,邓存宝,王雪峰,等.烟气注入采空区封存的可行性与安全性分析[J].中国安全生产科学技术,2016,12(7):60.[doi:10.11731/j.issn.1673-193x.2016.07.011]
　GAO Fei,DENG Cunbao,WANG Xuefeng,et al.Analysis on feasibility and safety in sealing of smoke injected into goaf[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(5):60.[doi:10.11731/j.issn.1673-193x.2016.07.011]
[5]高飞,邓存宝,王雪峰,等.电厂烟气对采空区防火效果实验研究[J].中国安全生产科学技术,2016,12(11):36.[doi:10.11731/j.issn.1673-193x.2016.11.006]
　GAO Fei,DENG Cunbao,WANG Xuefeng,et al.Experiment study on fire prevention effect of power plant flue gas in goaf[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(5):36.[doi:10.11731/j.issn.1673-193x.2016.11.006]
[6]韩兵.西沟煤矿注CO2促抽煤层瓦斯模拟研究[J].中国安全生产科学技术,2019,15(7):94.[doi:10.11731/j.issn.1673-193x.2019.07.015]
　HAN Bing.Simulation study of coal seam gas extraction promoted by CO2 injection in Xigou coal mine[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(5):94.[doi:10.11731/j.issn.1673-193x.2019.07.015]
[7]牛丽飞,曹运兴,石玢,等.潞安矿区煤层渗透率的各向异性特征实验研究[J].中国安全生产科学技术,2019,15(9):82.[doi:10.11731/j.issn.1673-193x.2019.09.013]
　NIU Lifei,CAO Yunxing,SHI Bin,et al.Experimental study on anisotropic characteristics of coal seam permeability in Lu’an mining area[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2019,15(5):82.[doi:10.11731/j.issn.1673-193x.2019.09.013]

备注/Memo

备注/Memo:
收稿日期： 2022-07-11
* 基金项目： 陕西省自然科学基础研究计划项目（2022JQ-408）
作者简介： 于志金，博士，副教授，主要研究方向为煤火灾害防治。
通信作者： 徐勇，硕士研究生，主要研究方向为煤火灾害防治。
更新日期/Last Update: 2023-06-12