低浓度瓦斯吸附富集性能及应用基础研究

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中图分类号：TD712 文献标志码：A 文章编号：2095-2945（2025）21-0039-05

Abstract：Thecleanutilizationoflow-concentrationgasisof greatsignificance toimprovingtheenergyenvironment，slowing dowthegreenhouseefectandachievingthedualcarbongoal.Inthispaper，commercialactivatedcarboncommonlyusedinthe coalminingindustryisselectedasanexample.Thestructureoftheactivatedcarbonmaterialischaracterizedbyphysical adsorption，Xrapowderdiractionndinfraedspetroscoyhadsoptionndeichmentfectofactivatedarbonteral onlow-concentrationgasunderdiferentrawgasvolumesandrawgasconcentrationsisstudied.Theresearchresultsshowthat when the volume and concentration of raw gas are 1.5L and 3% ，respectively，the purification effect isthe best，the concentration is increased from 3% to 9.7% ，and the recovery rate is 93.9% . In addition， based on the above adsorption experiments，a lowconcentrationgasautomaticenrichmentexperimentaldevicewasdesignedandbuilt，anditsabilitytoeficientlyenrichgaswas verifedthrough practicalaplication，providingguidanceforthemanagementanduilizationofgasenergyincoalprojects.

Keywords：low-concentrationgas;activatedcarbon;pressureswingadsoption;separationandenrichment；greenhouseeffect

我国煤层气（CBM）资源量位居世界第三，地质资源量为29.8万亿 m3 ，技术可采资源量为11.2万亿 m3[1] L2023年，全国CBM抽采量达117.7亿 m3 ，利用率仅为49.57% ，其中低浓度瓦斯（ CCH4<30% ）的利用率更是仅有 29.2% [2]。（剩余5129字）