具有最佳CO2吸附容量和产率的炭分子筛制备  

Preparation of new carbon molecular sieves for optimized carbon dioxide adsorption and product yield

作　　者：Ugur Morali Hakan Demiral Sevgi Sensoz 

机构地区：[1]Department of Chemical Engineering,Eskisehir Osmangazi University,Eskisehir 26040,Turkey

出　　处：《新型炭材料》2020年第3期209-219,共11页New Carbon Materials

摘　　要：采用田口设计方法,在活性炭上化学气相沉积甲烷制备出炭分子筛。在1 bar/273 K下测试炭分子筛对CO2吸附容量。制备高性能炭分子筛取决于最佳化学气相沉积条件。最佳合成条件不仅提供最大CO2吸附容量,而且提高产率。所制炭分子筛的最高产率为91 wt.%,最大CO2吸附容量为2.622 8 mmol g-1。通过氮吸附、CO2吸附、元素分析、官能团分析和孔结构分析对炭分子筛进行表征。这种田口设计方法有助于炭分子筛对CO2的可控吸附,有望成为炭分子筛制备条件的有用方法。Chemical vapor deposition(CVD)from methane on activated carbon prepared by zinc chloride activation of residue extracted from sunflow er seeds,has been optimized to produce carbon molecular sieves using the Taguchi method,targeted at achieving maximum CO2adsorption capacity and an increased product yield.The carbon molecular sieves were characterized by N2adsorption,CO2adsorption,elemental analysis,SEM and FTIR.The CO2adsorption capacities were measured at 1 bar/273 K.The optimized carbon molecular sieve with the highest product yield of 91 wt.%had a maximum CO2adsorption of 2.622 8 mmol g-1.Both nitrogen and oxygen surface functional groups and the narrow micropores are crucial for CO2adsorption.The Taguchi method is a pow erful tool to simultaneously optimize the carbon dioxide adsorption capacity and the yield of carbon molecular sieves.

关 键 词：化学气相沉积 炭分子筛 CO2吸附 最佳 

分 类 号：TQ127.11[化学工程—无机化工]