FTCMRs

Motamedhashemi, M., Egolfopoulos, F. and Tsotsis, T. (2011). Application of a Flow-Through Catalytic Membrane Reactor (FTCMR) for the Destruction of a Chemical Warfare Simulant, J. Membrane Sci., 376, pp. 119-131. 

Flow-through catalytic membrane reactor Catalytic reactions take place while the reactants flow through the membrane FTCMR... 

In some applications the membrane is not required to be perm-selective but only to provide reactive sites. Such devices are called catalytic non-perm-selective membrane reactors (CNMRs). The reactants can flow into the membrane from opposite sides, and the membrane s role is to provide a controlled reactive interface. If the reactants flow through the membrane from one side to the other while the reaction takes place instantly, such a reactor is also called a flow-through catalytic membrane reactor (FTCMR). 

Figure 2.14 Configurations of the CMRs (a) catalyst-coated CMR (b) catalyst-dispersed CMR (c) gas-liquid-solid three-phase CMR (d) FTCMR. Reproduced from [25]. With permission from Elsevier.

CH30H + 302- 2CO2+4H2O tube FTCMR CMeOH=100ppm 65[... 

CO selective oxidation CO + O20CO2 Y-type zeolite/a-AI2O3 tube Pt-zeolite FTCMR T=200-250 C P = 4—6bar Xco up to 100% [44, 45]... 

Combustion of VOCs ( -hexane) ZSM-5 zeolite/y- and a-Al203 tube Pt-zeolite FTCMR T=125-250°C Complete combustion above 210°C [46]... 

Figure 9.3 depicts the mass and heat transport process in an FTCMR. Feed 1 containing reactants (A + B) is introduced into the membrane tube while the sweep gas flows on the shell side. The reaction takes place as the reactants flow through the catalytic membrane wall. Since no catalysts are packed in the tube and shell side, the pressure drop in the axial direction can be neglected and the temperature and concentration changes only occur in the axial direction. 

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