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Catalytic membrane nano reactor with Cu/ZnO in situ immobilized in membrane pores for methanol dehydrogenation
  • +5
  • Yilin Wang,
  • Senqing Fan,
  • Zeyi Xiao,
  • Zenghui Mai,
  • Ke Bai,
  • Jiaojiao Chen,
  • Yu Chen,
  • Jingyun Liu
Yilin Wang
Sichuan University
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Senqing Fan
Sichuan University

Corresponding Author:[email protected]

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Zeyi Xiao
Sichuan University
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Zenghui Mai
Sichuan University
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Ke Bai
Sichuan University
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Jiaojiao Chen
Sichuan University
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Yu Chen
Sichuan University
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Jingyun Liu
Sichuan University
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Abstract

A catalytic membrane nano reactor (CMNR) with deep-permeation nanocomposite structure (DPNS) has been fabricated by flowing synthesis for methanol dehydrogenation to formaldehyde. In this structure, Cu/ZnO nanoparticles are in situ immobilized in the pores of Ti membrane substrate. The characterization by XRD, TGA, XPS, SEM and TEM indicates that the Cu/ZnO nanoparticles with mean size 82 nm was successfully embedded into the membrane pores, and well distributed along the thickness direction of the membrane. In the methanol dehydrogenation reaction, for one sheet of membrane setting up, the selectivity of formaldehyde 98%, the catalyst turnover frequency (TOF) 183 mmol·h-1·g-1, the pressure drop 2.7 kPa with gas permeating the membrane have been measured, under reaction temperature 360 ℃, the gas flux 8 m3·m-2·h-1 through the membrane.