CO吸附剂Cu(I)-分子筛的性能测试
发布时间:2023-03-10 00:22:46 来源:文档文库
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2016年11月 工业催化 INDUSTRIAL CATALYSIS 第24卷第11期 NOV.2016 Vo1.24 No.11 麓格藩 量与研究 CO吸附剂Cu(I)一分子筛的性能测试 王 磊,李 洁 ,陈耀壮,乔 莎,雷菊梅,赵 英 (西南化工研究设计院有限公司,工业排放气综合利用国家重点实验室, 国家碳一化学工程技术研究中心,四川成都610225) 摘要:采用干混法制备了Cu(I)一分子筛吸附剂,利用XRD和SEM考察Cu(I)在吸附剂表面 的分散情况,并对吸附剂吸附条件和解析条件和CO吸附分离性能进行考察。结果表明,CuC1呈原 子状态分散于分子筛载体孔道内;在吸附温度60 cIC、吸附压力700 kPa、解吸温度80℃、解吸压力 20 kPa和解吸时间2 min条件下,吸附剂的穿透吸附量达37.5 mL・g~,解吸量为8.5 mL・g~。 在对CO、CH 、H2和N 混合气进行分离以及增加置换工序的情况下,可将体积分数27%的CO提 浓至99.5%,该吸附剂满足工业应用要求。 关键词:催化剂工程;一氧化碳;Cu(I)一分子筛;吸附;提纯;解吸;置换 doi:10.3969/j.issn.1008—1143.2016.11.013 中图分类号:TQ424.25;0643.36 文献标识码:A 文章编号:1008—1143(2016)11-0062-06 Performance test of CO adsorbent Cu(I)-molecular sieve Wang Lei,Li ,Chen Yaozhuang,Qiao Sha,Lei Jumei,Zhao Ying (State Key Laboratory of Industiral Vent Gas Reuse,National Research Center of C1 Chemical Engineering and Technology.Southwest Research&Design Institute of Chemical Industry,Chengdu 610225,Sichuan,China) Abstract:Cu(I)一molecular sieve adsorbent was prepared by dry mixing method.The dispersion of Cu (I)on the surface of the adsorbent was investigated by the characterization techniques of SEM and XRD.The adsorption conditions,the desorption conditions,the adsorption and separation performance of carbon monoxide were also investigated.The results showed that cuprous chloride in atomic form dispersed in the porous channel of the molecular sieve carrier.Under the condition of adsorption temperature 60 oC, adsorption pressure 700 kPa。desorption temperature 80 oC,desorption pressure 20 kPa and desorption time 2 min,the adsorption capacity of the adsorbent reached 37.5 mL。g一 and the desorption amount was 8.5 mL・g。。.For the separation of carbon monoxide from gas mixture of methane,nitrogen and hydrogen,the adsorbent could increased the concentration of carbon monoxide from 27vo1%to 99.5vo1% by adding the replacement process,which could meet the requirements of industialr application. Key words:catalyst engineering;carbon monoxide;Cu(I)-molecular si