钴/镍甲酸盐的制备及其分离富集煤层气CH4  

Preparation of Cobalt/Nickel Formate Adsorbent and Its Separation and Enrichment of Coalbed Methane CH_(4)

作　　者：张育华 吴红 Zhang Yu-hua;Wu Hong

机构地区：[1]六盘水师范学院化学与材料工程学院,贵州六盘水553004

出　　处：《化工设计通讯》2023年第9期55-57,共3页Chemical Engineering Design Communications

基　　金：煤炭洁净加工与转化利用重大创新群体(黔教合KY字[2020]027);六盘水师范学院省级一流本科专业建设点项目(GZSylzy202105)。

摘　　要：以硝酸钴和硝酸镍为原料,通过均相反应制备了钴/镍甲酸盐吸附剂,利用N2吸附/脱附等温线进行表征分析,测定低浓度煤层气CH_(4)在吸附剂上的吸附透过曲线。结果表明,吸附剂对低浓度煤层气CH4的选择性吸附量顺序为:Q(Co∶Ni=1∶3)> Q(Co∶Ni=1∶4)>Q(Co∶Ni=1∶2)。这是由于钴/镍甲酸盐吸附剂中存在大量的微孔,而且内部存在特殊的极性势场,有利于CH4的选择性吸附。Cobalt/nickel formate material adsorbent was prepared by homogeneous reaction with cobalt nitrate and nickel nitrate as raw materials,and characterized by N_(2) adsorption/desorption isotherm to determine the adsorption penetration curve of low concentration coal-bed methane CH4 on the adsorbent.The results indicate that the order of selective adsorption capacity of adsorbents for low concentration coalbed methane CH4 is:Q(Co:Ni=1:3)>Q(Co:Ni=1:4)>Q(Co:Ni=1:2).This is because there are a large number of micropores in the cobalt/nickel formate adsorbent and there is a special polar potential field inside,which is conducive to the selective adsorption of CH_(4).

关 键 词：钴/镍甲酸盐 低浓度煤层气 CH_(4) 

分 类 号：O643.36[理学—物理化学]