中国煤炭地质
中國煤炭地質
중국매탄지질
COAL GEOLOGY OF CHINA
2013年
7期
22-25
,共4页
黄丹%夏大平%徐涛%陈山来
黃丹%夏大平%徐濤%陳山來
황단%하대평%서도%진산래
等温吸附%液态水%甲烷
等溫吸附%液態水%甲烷
등온흡부%액태수%갑완
isothermal adsorption%liquid water%methane
为了研究水分含量和粒度对煤吸附甲烷性能的影响，取山西西山杜儿坪矿2号煤干燥样、平衡水样和注水样进行了等温吸附实验。基于分子间作用力对水含量影响机理进行分析，并运用维里方程拟合等温吸附实验结果来验证。实验结果发现，在未达到平衡水分之前，水含量对高煤级吸附能力影响小且注水煤样中的液态水影响增加了甲烷吸附量；同一种煤的高含水煤样对液态水的亲和能力要远比平衡水煤样对气态水的亲和能力强。
為瞭研究水分含量和粒度對煤吸附甲烷性能的影響，取山西西山杜兒坪礦2號煤榦燥樣、平衡水樣和註水樣進行瞭等溫吸附實驗。基于分子間作用力對水含量影響機理進行分析，併運用維裏方程擬閤等溫吸附實驗結果來驗證。實驗結果髮現，在未達到平衡水分之前，水含量對高煤級吸附能力影響小且註水煤樣中的液態水影響增加瞭甲烷吸附量；同一種煤的高含水煤樣對液態水的親和能力要遠比平衡水煤樣對氣態水的親和能力彊。
위료연구수분함량화립도대매흡부갑완성능적영향，취산서서산두인평광2호매간조양、평형수양화주수양진행료등온흡부실험。기우분자간작용력대수함량영향궤리진행분석，병운용유리방정의합등온흡부실험결과래험증。실험결과발현，재미체도평형수분지전，수함량대고매급흡부능력영향소차주수매양중적액태수영향증가료갑완흡부량；동일충매적고함수매양대액태수적친화능력요원비평형수매양대기태수적친화능력강。
To study coal methane adsorption performance impacted from moisture and granularity, carried out isothermal adsorption test for dry, equilibrium moisture and water injected coal samples from No.2 coal seam, Duerping coalmine, Xishan, Shanxi. Analysis based on intermolecular force moisture impacting mechanism and verify through Virial equation isothermal adsorption test result fit-ting. The result has found that moisture has only small impact on high ranked coal adsorptivity before equilibrium moisture achieved, while the liquid water in water injected coal sample increased methane adsorptive capacity. Affinity of high moisture coal sample to liq-uid water is much better than equilibrium moisture coal sample to gaseous water in the same kind coal condition.
