Department of Petroleum Engineering, School of Engineering, Asia Pacific University of Technology and Innovation, 57000, Kuala Lumpur, Malaysia.
Department of Petroleum Engineering, School of Engineering, Asia Pacific University of Technology and Innovation, 57000, Kuala Lumpur, Malaysia.
Chemosphere. 2022 Mar;291(Pt 3):133006. doi: 10.1016/j.chemosphere.2021.133006. Epub 2021 Nov 20.
The paper evaluates the routes towards the evaluation of membranes using ZIF-62 metal organic framework (MOF) nano-hybrid dots for environmental remediation. Optimization of interaction of operating parameters over the rooted membrane is challenging issue. Subsequently, the interaction of operating parameters including temperature, pressure and CO gas concentration over the resultant rooted membranes are evaluated and optimized using response surface methodology for environmental remediation. In addition, the stability and effect of hydrocarbons on the performance of the resulting membrane during the gas mixture separation are evaluated at optimum conditions to meet the industrial requirements. The characterization results verified the fabrication of the ZIF-62 MOF rooted composite membrane. The permeation results demonstrated that the CO permeability and CO/CH selectivity of the composite membrane was increased from 15.8 to 84.8 Barrer and 12.2 to 35.3 upon integration of ZIF-62 nano-glass into cellulose acetate (CA) polymer. Subsequently, the optimum conditions have been found at a temperature of 30 °C, the pressure of 12.6 bar and CO feed concentration of 53.3 vol%. These optimum conditions revealed the highest CO permeability, CH permeability and CO/CH separation factor of 47.9 Barrer, 0.2 Barrer and 26.8. The presence of hydrocarbons in gas mixture dropped the CO permeability of 56.5% and separation factor of 46.4% during 206 h of testing. The separation performance of the composite membrane remained stable without the presence of hydrocarbons for 206 h.
本文评估了使用 ZIF-62 金属有机骨架（MOF）纳米杂化点评估用于环境修复的膜的途径。优化生根膜的操作参数之间的相互作用是一个具有挑战性的问题。随后，使用响应面法评估和优化了包括温度、压力和 CO 气体浓度在内的操作参数在所得生根膜上的相互作用，以进行环境修复。此外，在最佳条件下评估了在气体混合物分离过程中烃类对所得膜性能的稳定性和影响，以满足工业要求。表征结果验证了 ZIF-62 MOF 生根复合膜的制备。渗透结果表明，在将 ZIF-62 纳米玻璃整合到醋酸纤维素（CA）聚合物中后，复合膜的 CO 渗透率和 CO/CH 选择性从 15.8 增加到 84.8 Barrer 和从 12.2 增加到 35.3。随后，在温度为 30°C、压力为 12.6 bar 和 CO 进料浓度为 53.3 vol%的最佳条件下发现。这些最佳条件显示出最高的 CO 渗透率、CH 渗透率和 CO/CH 分离因子分别为 47.9 Barrer、0.2 Barrer 和 26.8。在 206 小时的测试中，烃类在气体混合物中的存在使 CO 渗透率下降了 56.5%，分离因子下降了 46.4%。在没有烃类存在的情况下，复合膜的分离性能在 206 小时内保持稳定。
