抗污染亲水性膜在低渗透油层采出水处理中应用

抗污染亲水性膜在低渗透油层采出水处理中应用待填

2014年我国陶瓷膜应用新进展

陶瓷膜是国家的战略新兴产业，在众多领域获得了广泛应用，产业发展速度很快．本文列举了我国陶瓷膜产业在政策层面获得的支持，阐述了2014年我国陶瓷膜在生物医药、化工与石化、食品与饮料、特种水处理等领域的应用新进展，并分析了行业应用规模与市场发展状况，最后对陶瓷膜材料的发展趋势进行了展望

A high CO2 permselective mesoporous silicacarbon composite membrane for CO2 separation

Ordered mesoporous silica/carbon composite membranes with a high CO2 permeability and selectivity were designed and prepared by incorporating SBA-15 or MCM-48 particles into polymeric precursors followed by heat treatment. The as-made composite membranes were characterized by high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and N-2 adsorption, of which the gas separation performance in terms of gas permeability and selectivity were evaluated using the single gas (CO2, N-2, CH4) and gas mixtures (CO2/N-2 and CO2/CH4, 50/50 mol.%). In comparison to the pure carbon membranes and microporous zeolite/C composite membranes, the as-made mesoporous silica/C composite membranes, and the MCM-48/C composite membrane in particular, exhibit an outstanding CO2 gas permeability and selectivity for the separation of CO2/CH4 and CO2/N-2 gas pairs owing to the smaller gas diffusive resistance through the membrane and additional gas permeation channels created by the incorporation of mesoporous silicas in carbon membrane matrix. The channel shape and dimension of mesoporous silicas are key parameters for governing the gas permeability of the as-made composite membranes. The gas separation mechanism and the functions of porous materials incorporated inside the composite membranes are addressed. (C) 2012 Elsevier Ltd. All rights reserved

我国无机陶瓷膜发展现状及展望

我国无机陶瓷膜发展现状及展

有机蒸气膜分离过程

绍了有机蒸气渗透膜原理和分离过程特点，根据各生产过程工艺特点，概述了应用膜分离一压缩冷凝集成技术，分离与回收乙烯、丙烯、氯甲烷和氯乙烯等有机蒸气过程

α-纤维素中空纤维致密膜组件吸收CO_2传质过程的研究

采用α-纤维素中空纤维致密膜研究了从N2-CO2混合气中吸收CO2的传质过程，考察了吸收剂种类（一乙醇胺、二乙醇胺、三乙醇胺）以及吸收剂的浓度和流量、气体流量、气体压力等因素对CO2吸收过程的影响。实验结果表明，3种吸收剂中一乙醇胺的吸收效果最好；当一乙醇胺的浓度为3．5mol／L、流量为10L／h、气体流量为8．9×10^6 mol/s、气体压力为0．2 MPa、气体走壳程、逆流操作时，总传质通量和总传质系数分别达到最大值8．7×10^-5 mol／（m^2·s）和1．1×10^6 mol／（m^2·s·kPa）。吸收剂流量对CO2吸收过程没有明显的影响