温度作用下考虑过剩吸附的煤岩吸附模型

doi:10.16265/j.cnki.issn1003-3033.2018.10.023

中国安全科学学报 ›› 2018, Vol. 28 ›› Issue (10): 137-142.doi: 10.16265/j.cnki.issn1003-3033.2018.10.023

温度作用下考虑过剩吸附的煤岩吸附模型

杨康¹, 李波波^**1,2,3 副教授, 任崇鸿¹, 李建华¹, 许江⁴ 教授, 袁梅^1,2 教授

1 贵州大学矿业学院,贵州贵阳 550025
2 贵州大学喀斯特山区优势矿产资源高效利用国家地方联合工程实验室,贵州贵阳 550025
3 山东科技大学矿山灾害预防控制省部共建国家重点实验室培育基地,山东青岛 266590
4 重庆大学煤矿灾害动力学与控制国家重点实验室,重庆 400044

收稿日期:2018-06-08 修回日期:2018-08-24 出版日期:2018-10-28 发布日期:2020-11-20
通讯作者: **李波波(1985—),男,贵州修文人,博士,副教授,主要从事煤层气渗流、矿井灾害防治等方面的教学与研究工作。E-mail: bbli@gzu.edu.cn。
作者简介:杨康 (1994—),男,重庆人,硕士研究生,研究方向为煤层气渗流理论及应用。E-mail: yangkangmx0727@163.com。
基金资助:
国家自然科学基金资助 (51804085);国家科技重大专项项目(2016ZX05044);贵州省科学技术基金资助(黔科合J字[2015]2049号)。

Research on a modified model for adsorption of methane on coal under temperature effect considering excess adsorption

YANG Kang¹, LI Bobo^1,2,3, REN Chonghong¹, LI Jianhua¹, XU Jiang⁴, YUAN Mei^1,2

1 College of Mining,Guizhou University,Guiyang Guizhou 550025,China
2 National Joint Engineering Laboratory for Utilization of Dominant Mineral Resources in Karst Mountain Area,Guizhou University,Guiyang Guizhou 550025,China
3 State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and Ministry of Science and Technology,Shandong University of Science and Technology,Qingdao Shandong 266590,China
4 State Key Laboratory of Coal Mine Disaster Dynamics and Control,Chongqing University,Chongqing 400044,China

Received:2018-06-08 Revised:2018-08-24 Online:2018-10-28 Published:2020-11-20

摘要/Abstract

摘要： 为研究深部开采下煤岩吸附特性,利用等温吸附试验仪器开展不同温度下等温吸附试验,基于吸附热理论建立温度作用下考虑过剩吸附的煤岩吸附模型(改进的L-F模型),通过试验结果与模型预测结果对比验证其有效性。试验结果显示:煤岩吸附瓦斯属于物理吸附,且为放热反应,随瓦斯吸附量增加,煤岩等量吸附热逐渐下降;随瓦斯压力升高,在较低压力段中煤岩瓦斯过剩吸附量呈先快速增加后逐渐平缓的趋势,在较高压力段中过剩吸附量呈先增加后逐渐减小的趋势,随温度升高煤岩瓦斯吸附量逐渐减小。结果表明:相比常规模型(L、双L模型),改进的L-F模型对试验数据拟合效果较好,且能更好地预测不同温度下煤岩瓦斯吸附量。

关键词: 煤岩, 温度, 瓦斯压力, 过剩吸附, 吸附模型

Abstract: In order to study the adsorption characteristics of coal in deep mining, isothermal adsorption of methane on coal experiments were carried out at different temperatures by using an isothermal adsorption device. Based on the theory of adsorption heat, an adsorption model considering the correction of temperature and excess adsorption(the modified L-F model) was built, and its effectiveness was verified by comparing the experimental results with the predicted by the model. The results show that the adsorption of methane on coal is a physical adsorption process, an exothermic reaction, that the adsorption heat decreases with the increase of adsorption volume, that the methane excess adsorption on coal is a none-linear function of methane pressure, that the methane adsorption volume gradually decreases with increasing temperature, and that compared with the conventional adsorption models(L and dual-site L model), the modified L-F model fits the experimental data and can better predict the methane adsorption volume on coal at different temperatures.

Key words: coal, temperature, methane pressure, excess adsorption, adsorption model

中图分类号:

X936

杨康, 李波波, 任崇鸿, 李建华, 许江, 袁梅. 温度作用下考虑过剩吸附的煤岩吸附模型[J]. 中国安全科学学报, 2018, 28(10): 137-142.

YANG Kang, LI Bobo, REN Chonghong, LI Jianhua, XU Jiang, YUAN Mei. Research on a modified model for adsorption of methane on coal under temperature effect considering excess adsorption[J]. China Safety Science Journal, 2018, 28(10): 137-142.

参考文献

[1] 宋昱, 姜波, 李明, 等. 低中煤级构造煤超临界甲烷吸附特性及吸附模型适用性[J]. 煤炭学报, 2017, 42(8): 2 063-2 073.
SONG Yu, JIANG Bo, LI Ming, et al. Super critical CH₄ adsorption characteristics and applicability of adsorption models for low, middle-rank tectonically deformed coals[J]. Journal of China Coal Society, 2017, 42(8): 2 063-2 073.
[2] 李波波, 杨康, 徐鹏, 等. 力热耦合条件下煤岩渗透率模型研究[J]. 中国安全科学学报, 2017, 27(6): 139-144.
LI Bobo, YANG Kang, XU Peng, et al. Research on model for permeability of coal under stress and temperature coupling condition[J]. China Safety Science Journal, 2017, 27(6): 139-144.
[3] 李松, 汤达祯, 许浩, 等. 深部煤层气储层地质研究进展[J].地学前缘, 2016, 23(3): 10-16.
LI Song, TANG Dazhen, XU Hao, et al. Progress in geological researches on the deep coalbed methane reservoirs[J].Earth Science Frontiers, 2016, 23(3): 10-16.
[4] 杨兆彪, 秦勇, 高弟, 等. 超临界条件下煤层甲烷视吸附量、真实吸附量的差异及其地质意义[J]. 天然气工业, 2011, 31(4): 13-16.
YANG Zhaobiao, QIN Yong, GAO Di, et al. Differences between apparent and true adsorption quantity of coalbed methane under supercritical conditions and their geological significance[J]. Natural Gas Industry, 2011, 31(4): 13-16.
[5] 周来, 冯启言, 秦勇. CO₂和CH₄在煤基质表面竞争吸附的热力学分析[J]. 煤炭学报, 2011, 36(8): 1 307-1 311.
ZHOU Lai, FENG Qiyan, QIN Yong. Thermodynamic analysis of competitive adsorption of CO₂ and CH₄ on coal matrix[J]. Journal of China Coal Society, 2011, 36(8): 1 307-1 311.
[6] FIANU J, GHOLINEZHAD J, HASSAN M. Comparison of temperature-dependent gas adsorption models and their application to shale gas reservoirs[J]. Energy & Fuels, 2018, 32(4): 4 763-4 771.
[7] TANG Xu, RIPEPI N, STADIE N P, et al. A dual-site Langmuir equation for accurate estimation of high pressure deep shale gas resources[J]. Fuel, 2016, 185: 10-17.
[8] 郇璇, 张小兵, 韦欢文. 基于不同类型煤吸附甲烷的吸附势重要参数探讨[J]. 煤炭学报, 2015, 40(8): 1 859-1 864.
HUAN Xuan, ZHANG Xiaobing, WEI Huanwen. Research on parameters of adsorption potential via methane adsorptionof different types of coal[J]. Journal of China Coal Society, 2015, 40(8): 1 859-1 864.
[9] 杨峰, 宁正福, 张睿,等. 甲烷在页岩上的吸附等温过程[J]. 煤炭学报, 2014, 39(7): 1 327-1 332.
YANG Feng, NING Zhengfu, ZHANG Rui, et al. Adsorption isotherms process of methane on gas shales[J]. Journal of China Coal Society, 2014, 39(7): 1 327-1 332.
[10] MYERS A L. Thermodynamics of adsorption in porous materials[J]. Aiche Journal, 2002, 48(1): 145-160.
[11] OZAWA S, KUSUMI S, OGINO Y. Physical adsorption of gases at high pressure. IV. An improvement of the Dubinin Astakhov adsorption equation[J]. Journal of Colloid & Interface Science, 1976, 56(1): 83-91.
[12] COCHRAN T W, KABEL R L, DANNER R P. Vacancy solution theory of adsorption using Flory-Huggins activity coefficient equations[J]. Aiche Journal, 2010, 31(2): 268-277.
[13] ZHOU Li, ZHANG Junshe, ZHOU Yaping. A simple isotherm equation for modeling the adsorption equilibria on porous solids over wide temperature rangest[J]. Langmuir, 2001, 17(18): 1 158-1 169.
[14] 周军平,鲜学福,李晓红,等. 吸附不同气体对煤岩渗透特性的影响[J]. 岩石力学与工程学报,2010,29(11): 2 256-2 262.
ZHOU Junping, XIAN Xuefu, LI Xiaohong, et al. Effect of different adsorptional gases on permeability of coal[J]. Chinese Journal of Rock Mechanics and Engineering, 2010, 29(11): 2 256-2 262.
[15] XING Wanli, SONG Yongchen, ZHANG Yi, et al. Adsorption isotherms and kinetic characteristics of methane on block anthracite over a wide pressure range[J]. Journal of Energy Chemistry, 2015, 24(2): 245-256.

温度作用下考虑过剩吸附的煤岩吸附模型

Research on a modified model for adsorption of methane on coal under temperature effect considering excess adsorption

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