吸附
微型多孔材料
巴(单位)
选择性
沼气
化学
工作(物理)
烟气
化学工程
热力学
材料科学
物理化学
有机化学
废物管理
物理
气象学
工程类
催化作用
作者
Mohsen Karimi,Alexandre F. P. Ferreira,Alı́rio E. Rodrigues,Farid Nouar,Christian Serre,José A.C. Silva
标识
DOI:10.1021/acs.iecr.2c04150
摘要
The microporous bioderived Al dicarboxylate MIL-160(Al) MOF in its shaped form has been evaluated as a candidate for biogas upgrading (BU) and/or carbon capture and storage (CCS) by studying adsorption isotherms of CO2, CH4, and N2 at 313, 343, and 373 K until 8 bar. The isotherms disclosed the following loading capacities: 4.2 (CO2), 2.07 (CH4), and 0.69 (N2) mol/kg at 5.8 bar and 313 K, which fitted with the dual-site Langmuir model. The linear-driving-force coefficients (LDFs) for CO2 and CH4 calculated from uptake rate experiments are in the order of 0.021–0.096 and 0.041–0.165 s–1 at 313 K between 0.11 and 2.76 bar, respectively. The Response Surface Methodology (RSM) was also applied to maximize the selectivity for mixtures CO2/CH4 and CO2/N2 with interest for BU or CCS. Breakthrough curve experiments with mixtures CO2/CH4 and CO2/N2 at the optimum selectivity conditions were developed and simulated using ASPEN Adsorption. This work clearly demonstrates the potential of MIL-160(Al) to be used in BU- and/or CCS-related applications.
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