精馏-膜分离技术集成过程研究进展

精馏-膜分离集成过程与传统精馏工艺相比，因其具有明显节能降耗的经济性优势，故工业应用日渐增多，所以对其进行全面研究更有理论和实际意义。本文介绍了膜分离的机理模型，根据膜的亲水性和亲有机性对膜材料进行分类，总结了精馏-膜分离集成过程的理论研究方法，并分别从脱水和脱有机物两方面介绍了精馏-膜分离集成过程的主要实验研究及工业应用研究进展。通过对现有研究分析发现，目前该集成过程在膜材料和集成优化理论研究方面存在一定局限性，使其未能在工业上得以广泛推广应用。基于上述全面分析，提出了一定改进思路。

Research progress of hybrid distillation - membrane separation process

The industrial applications of hybrid distillation-membrane separation process, compared with the traditional distillation process, are increasing due to its economic advantages of obvious energy-saving and consumption-reducing, so it has more theoretical and practical significance to be study comprehensively. In this paper, the mechanism model of membrane separation is introduced. The membrane materials are classified according to the hydrophilicity and lipophilicity of the membrane. The research methods of hybrid distillation-membrane separation process theories are summarized, and the main experimental research and industrial application of hybrid distillation-membrane separation process are introduced respectively for dehydration and organic removal. According to the existing research and analysis, it is found that there are some limitations with the hybrid process in the aspects of membrane material research and integrated optimization theory, which can not been widely applied in industry. Based on the above comprehensive analysis, some certain ideas are put forward to improve the present situation.