首页> 中文期刊>天然气化工 >CuCl@MIL-101(Cr)吸附剂制备及其CO/N2吸附分离性能研究

CuCl@MIL-101(Cr)吸附剂制备及其CO/N2吸附分离性能研究

     

摘要

采用浸渍法将不同量的CuCl负载在MIL-101载体上制备了CuCl@MIL-101吸附剂材料,并用X射线衍射分析(XRD)、热重分析(TG)、傅立叶变换红外光谱分析(FT-IR)、N2吸附和脱附等方法进行表征,测试CuCl@MIL-101在101.3kPa、25℃下的CO、N2吸附量,依据理想吸附溶液理论模型(IAST)计算吸附剂对CO/N2二元混合气体的吸附选择性。结果表明:CuCl的负载加大了CO在CuCl@MIL-101上的吸附容量,其最佳负载量为4mmol/g MIL-101。在101.3kPa下,最佳CuCl负载量的吸附剂对CO的吸附容量由44.62cm3/g提高到56.63cm3/g,对N2的吸附容量由10.88cm3/g下降到4.38cm3/g,提高了吸附剂对CO/N2的吸附选择性,对CO/N2的吸附选择性由79提高到200。 CuCl@MIL-101在200℃、真空下可再生。%CuCl@MIL-101 adsorbents with different CuCl loading were prepared by impregnation method, and characterized by XRD, FT-IR, TG, N2 adsoption and desorption. The adsorption capacities of CO and N2 on the adsorbents were measured under 298K and 101.3kPa, and the adsorption selectivities of the adsorbents for CO/N2 mixtures were estimated on the basis of ideal adsorbed solution theory (IAST). The results showed that the loading of CuCl onto MIL-101 significantly enhanced its CO adsorption capacity and the optimum CuCl loading was 4mmole per gram of MIL-101. For the optimized CuCl@MIL-101, the adsorption capacity of CO increased from 44.62cm3/g to 56.63cm3/g and the adsorption capacity of N2 decreased from 10.88cm3/g to 4.38cm3/g, giving a significantly improved CO/N2 adsorptive selectivity which, under 101.3kPa, increased from 79 to 200. The adsorbents could be regenerated under 200℃and vacuum.

著录项

相似文献

  • 中文文献
  • 外文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号