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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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甲烷在活性炭上吸附平衡模型的研究
, PP. 380-384
Keywords: 吸附平衡,甲烷,活性炭,模型
Abstract:
？比较吸附模型分析甲烷在活性炭上吸附平衡的适用性,为吸附式天然气(ang)的工程应用提供准确的预测模型。基于在温度268.15～338.15k、压力0～12.5mpa测试的甲烷在ajax活性炭上的吸附平衡数据,选择langmuir、langmuir-freundlich和toth方程,应用非线性回归拟合方程参数后,确定绝对吸附量和甲烷吸附相态,并比较方程在不同压力区域内的预测精度。结果表明,甲烷吸附相密度随平衡温度和压力变化;由绝对吸附量确定的甲烷在ajax活性炭上的平均等量吸附热为15.72kj/mol,小于由过剩吸附量的标绘结果;langmuir、langmuir-freundlich和toth方程预测结果在0～0.025mpa的累积相对误差为6.4498%、7.9184%和0.9100%,在1～10mpa为0.4911%、0.1613%和0.3694%。toth方程在整个压力范围内的预测结果最为准确,但langmuir-freundlich方程在较高压力区域内具有较高的预测精度。
| [1] | 周理,李明,周亚平.超临界甲烷在高比表面活性炭上的吸附测量及理论分析[j].中国科学(b辑),2000,30(1):49-56.(zhouli,liming,zhouya-ping.measurementandtheoreticalanalysisofsupercriticalmethanehighspecificsurfaceareaactivatedcarbonadsorption[j].scienceinchina(seriesb),2000,30(1):49-56.)
|
| [2] | birkettg,dodd.newmethodtodeterminepsdusingsupercriticaladsorption:appliedtomethaneadsorptioninactivatedcarbon[j].langmuir,2006,22(18):7622-7630.
|
| [3] | 郑青榕,廖海峰,解晨,智会杰.超临界甲烷在活性炭上的吸附平衡分析[j].燃料化学学报,2012,40(7):892-896.(zhengqing-rong,liaohai-feng,jiechen,zhihui-jie.adsorptionequilibriumofsupercriticalmethaneonactivatedcarbon[j].journaloffuelchemistryandtechnology,2012,40(7):892-896.)
|
| [4] | 孙艳.多孔介质储气研究.天津:天津大学,2007.(sunyan.studiesongasstorageinporousmedia.tianjin:tianjinuniversity,2007.)
|
| [5] | dodd,dohd.appropriatevolumesforadsorptionisothermstudies:theabsolutevoidvolume,accessibleporevolumeandenclosingparticlevolume[j].journalofcolloidandinterfacescience,2007,316(2):317-330.
|
| [6] | ozawas,kusumis,oginoy.physicaladsorptionofgasesathighpressure[j].journalofcolloidandinterfacescience,1976,56(1):83-91.
|
| [7] | lim,guaz,luxs,wangrs.determinationoftheadsorbatedensityfromsupercriticalgasadsorptionequilibriumdata[j].carbon,2003,41(3):585-588.
|
| [8] | paggiaror,michlf,be'nardp.cryo-adsorptivehydrogenstorageonactivatedcarbon.ii:investigationofthethermaleffectsduringfillingatcryogenictemperatures[j].internationaljournalofhydrogenenergy,2010,35(2):648-659.
|
| [9] | dodd,dohd.adsorptionofsupercriticalfluidsinnon-porousandporouscarbons:analysisofadsorbedphasevolumeanddensity[j].carbon,2003,41(9):1777-1791.
|
| [10] | 谢兰英,lingailuo,李忠华.vocs在mac上吸附等温线的测定与拟合[j].化工学报,2006,57(6):1357-1362.(xielan-ying,luolingai,lizhong-hua.measurementandsimulationofadsorptionisothermsofvocsonmac[j].journalofchemicalindustryandengineering(china),2006,57(6):1357-1362.)
|
| [11] | setzmannu,wagnerwj.aneweosandtablesofthermodynamicpropertiesformethanecoveringtherangefromthemeltinglineto635katpressuresupto1000mpa[j].journalofphysicalandchemicalreferencedata,1991,20(6):1061-1156.
|
| [12] | 郑青榕,birkettg,dodd.甲烷在活性炭上吸附的实验及理论分析[j].天然气化工,2009,34(1):41-45.(zhengqing-rong,birkettg,dodd.theoreticalandexperimentalanalysisofmethaneadsorptiononactivatedcarbon[j].naturalgaschemicalindustry,2009,34(1):41-44.)
|
| [13] | 李明,顾安忠,鲁雪生,汪荣顺.吸附势理论在甲烷临界温度以上吸附中的作用[j].天然气化工,2003,28(5):28-31.(liming,guan-zhong,luxue-sheng,wangrong-shun.studyonmethaneadsorptionabovecriticaltemperaturebyadsorptionpotentialtheory[j].naturalgaschemicalindustry,2003,28(5):28-31.
|
| [14] | 李明.甲烷在ax-21活性炭上吸附特性的研究.天津:天津大学化工学院,1998.(liming.studyofadsorptioncharacteristicsofmethaneontheax-21activatedcarbon.tianjin:tianjinuniversity,1998.)
|
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