Chem. J. Chinese Universities ›› 2022, Vol. 43 ›› Issue (6): 20220025.doi: 10.7503/cjcu20220025

• Physical Chemistry • Previous Articles     Next Articles

Research on Co3O4/UiO-66@α-Al2O3 Ceramic Membrane Separation and Catalytic Spraying Industry VOCs Waste Gas

JIANG Hongbin1,2(), DAI Wenchen1,2, ZHANG Rao2,3, XU Xiaochen2, CHEN Jie2, YANG Guang1, YANG Fenglin2   

  1. 1.Key Laboratory of Wastewater Treatment Technology of Liaoning Province,School of Environmental and Chemical Engineering,Shenyang Ligong University,Shenyang 110158,China
    2.Key Laboratory of Industrial Ecology and Environmental Engineering,Ministry of Education,School of Environmental Science and Technology,Dalian University of Technology,Dalian 116081,China
    3.Research Institute of No. 240,China National Nuclear Corp(CNNC),Shenyang 110032,China
  • Received:2022-01-10 Online:2022-06-10 Published:2022-02-28
  • Contact: JIANG Hongbin E-mail:jianghb@sylu.edu.cn
  • Supported by:
    the Open Foundation of Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, China(KLIEEE-21-05);the Liaoning Provincial Science and Technology Major Project, China(2019020171-JH1/103-04)

Abstract:

Co3O4/UiO-66@α-Al2O3 ceramic membranes were constructed with α-Al2O3 as the support layer, UiO-66 as the separation layer, and Co3O4 as the catalytic layer. The ceramic membrane exhibits outstanding separation performance of benzene/pyridine. The molar concentration ratio of pyridine to benzene in the gas on the permeate side can be increased from 1 to 17 on the feed side. After O3 was introduced into the system, the concentration of benzene on the feed side was significantly reduced, and its removal rate can reach 89%. The removal rate of pyridine on the permeate side was only 27%, which was retained to a large extent, and the remaining pyridine could be collected for separate advanced treatment. The Co3O4/UiO-66@α-Al2O3 ceramic membrane can effectively solve the emission problem of nitrogen oxides in the waste gas treatment process of the spraying industry, and is expected to be an ideal choice for the waste gas pretreatment process of the spraying industry.

Key words: Membrane separation, Catalytic ozonation, Waste gas from spraying industry, Metal organic frameworks(MOFs), Adsorption energy

CLC Number: 

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