Research progress of polymeric membrane catalytic contactor

doi:10.16085/j.issn.1000-6613.2015.02.003

Abstract

Abstract: In this paper, the characteristics of polymeric membrane catalytic contactor, catalytic membrane materials and preparation methods are summarized. Compared with the traditional catalytic reactor,polymeric membrane catalytic contactor has the advantages of compact structure,simple technology and operation process,high catalytic activity,high reaction rate and high conversion rate. Active nanoparticles or groups can be easily introduced onto molecular backbone and side chains which are bonded with lots of functional groups. The preparation methods of polymeric catalytic membrane mainly include hybrid method,dipping method and chemical grafting method. Diffusion process is the controlling step of catalytic reaction process of polymeric membrane catalytic contactor. The whole process includes internal diffusion and external diffusion. Some problems deserving further research and application prospects of polymeric membrane catalytic contactor are presented. Catalytic efficiency and service life need to be further improved;novel polymeric membrane materials need to be developed;membrane fouling and membrane catalytic deactivation problems need to be resolved;basic issues, such as establishing kinetic model of polymeric membrane catalytic reaction need to be further studied.

Key words: membranes, reaction kinetics, mass transfer, reactors

摘要： 对聚合物膜催化接触器的特点、所用催化膜材料及其制备方法进行归纳总结。与传统催化反应器相比,聚合物膜催化接触器具有结构紧凑,工艺及操作流程简单,催化活性、反应速率及转化率高等特点。所用聚合物膜材料分子主链和侧链具有丰富的功能基团,以便引入活性纳米粒子或基团,得到高活性的催化膜。聚合物催化膜制备方法主要有杂化法、浸渍法及化学接枝法。扩散过程为聚合物膜接触器催化反应过程的控制步骤,整个过程包括内扩散和外扩散两个步骤。文中最后提出聚合物膜催化接触器应用中存在的问题,即催化效率和使用寿命有待进一步提高;新型聚合物催化膜材料亟需开发,膜污染和催化膜失活问题亟待解决;膜催化反应动力学模型的建立和研究等关键性、基础性问题还需要更加深入地研究。

关键词: 膜, 反应动力学, 传质, 反应器

CLC Number:

TQ028.8

SHI Wenying, LI Hongbin, ZHOU Rong. Research progress of polymeric membrane catalytic contactor[J]. Chemical Industry and Engineering Progree, 2015, 34(02): 312-318.

石文英, 李红宾, 周蓉. 聚合物膜催化接触器研究进展[J]. 化工进展, 2015, 34(02): 312-318.

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