دورية أكاديمية

Experimental research on adsorption characteristics of N 2 , CH 4 , and CO 2 in coal under different temperatures and gas pressures

التفاصيل البيبلوغرافية
العنوان: Experimental research on adsorption characteristics of N 2 , CH 4 , and CO 2 in coal under different temperatures and gas pressures
المؤلفون: Xiao, Tong, Li, Shugang, Long, Hang, Kong, Xiangguo, Bai, Yang, Qin, Aoli
المساهمون: National Natural Science Foundation of China, China Postdoctoral Science Foundation
المصدر: Energy Science & Engineering ; volume 11, issue 2, page 637-653 ; ISSN 2050-0505 2050-0505
بيانات النشر: Wiley
سنة النشر: 2022
المجموعة: Wiley Online Library (Open Access Articles via Crossref)
الوصف: The coal deformation was induced by the gas adsorption of N 2 , CH 4 , and CO 2 . However, the differences between different gas adsorption performances and the deformation mechanism of coal need to be further studied. In this study, the experiments were conducted using self‐developed equipment to reveal the adsorption characteristics of different gases. The results showed that the gas adsorption capacity followed the sequence of CO 2 > CH 4 > N 2 . The gas adsorption capacity was negatively correlated with temperature. The maximum decrease in adsorption capacity (23.70%) was N 2 . The gas adsorption capacity was positively correlated with gas pressure. The maximum increase in gas adsorption capacity (232.79%) was N 2 . Correspondingly, the coal deformation of CO 2 was the largest, and that of N 2 was the smallest. The maximum decrease in deformation (31.09%) was CO 2 during the temperature increase. The initial coal deformation rates of N 2 , CH 4 , and CO 2 were 0.060, 0.091, and 0.042 mm·h −1 , respectively. The maximum increase of deformation (234.65%) was CH 4 with the gas pressure increase. The initial coal deformation rates of N 2 , CH 4 , and CO 2 were 0.024, 0.045, and 0.016 mm·h −1 , respectively. This work guided further clarifying the mechanism of different gases' adsorption capacity and coal deformation.
نوع الوثيقة: article in journal/newspaper
اللغة: English
DOI: 10.1002/ese3.1350
الإتاحة: https://doi.org/10.1002/ese3.1350Test
حقوق: http://creativecommons.org/licenses/by/4.0Test/
رقم الانضمام: edsbas.98AF4E2E
قاعدة البيانات: BASE