用于分离CH_4/N_2炭分子筛的表征
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摘要
基于炭分子筛是浓缩煤层气变压吸附机组的关键材料,其性能的好坏直接影响变压吸附机组的性能,故需对炭分子筛进行快速及准确的评价。介绍了利用微型变压吸附(PSA)对样品炭分子筛进行评价,以研究适用于PSA的炭分子筛的评价方法,即炭分子筛的粒度、强度、装填密度和干燥减重等测定指标达标后,再以炭分子筛为吸附剂进行变压吸附实验,以确定炭分子筛分离CH4/N2的能力。
carbon molecular sieve is the critical material of the enrichment CBM variable pressure absorption units,with its performance directly affect the function of the variable pressure absorption units.Therefore,can be quickly is particularly important for accurate evaluation of carbon molecular sieves.First determine the grit size and strength of the carbon molecular sieve,loading density and dry weight of these basic indicators.These indicators standard after the carbon molecular sieve as adsorbent for pressure swing adsorption experiment,to determine the carbon molecular sieve separation of CH4/N2.
carbon molecular sieve is the critical material of the enrichment CBM variable pressure absorption units,with its performance directly affect the function of the variable pressure absorption units.Therefore,can be quickly is particularly important for accurate evaluation of carbon molecular sieves.First determine the grit size and strength of the carbon molecular sieve,loading density and dry weight of these basic indicators.These indicators standard after the carbon molecular sieve as adsorbent for pressure swing adsorption experiment,to determine the carbon molecular sieve separation of CH4/N2.
引文
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[4]张进华,梁大明,李兰廷.煤基炭分子筛的研究进展及应用现状[J].洁净煤技术,2010,16(5):53-55.
[5]姚伟静,辜敏,鲜学福.变压吸附气体分离用煤质炭分子筛的研究进展[J].化工进展,2009,28(4):549-551.
[6]Freitas M M A,Figueiredo J K.Preparation of carbon molecular sieves for gas separations by modification of the pore sizes of activated carbona[J].Fuel,2011,80:1-6.
[7]Ackley,Mark W,Yang Ralph T.Kinetic separation by pressure sswing adsorption:Method of characteristics model[J].AIChE Jounal,1990,36(8):1229-1231.
[2]Grande,Carlos A.Carbon molecular sieves for hydrocarbonseparations byadsorption[J].Industrial and Engineering ChemistryResearch,2005,44(18):7218-7227.
[3]刘克万,辜敏,鲜学福.变压吸附浓缩甲烷/氮气中甲烷的研究进展[J].现代化工,2007,27(12):15-20.
[4]张进华,梁大明,李兰廷.煤基炭分子筛的研究进展及应用现状[J].洁净煤技术,2010,16(5):53-55.
[5]姚伟静,辜敏,鲜学福.变压吸附气体分离用煤质炭分子筛的研究进展[J].化工进展,2009,28(4):549-551.
[6]Freitas M M A,Figueiredo J K.Preparation of carbon molecular sieves for gas separations by modification of the pore sizes of activated carbona[J].Fuel,2011,80:1-6.
[7]Ackley,Mark W,Yang Ralph T.Kinetic separation by pressure sswing adsorption:Method of characteristics model[J].AIChE Jounal,1990,36(8):1229-1231.