Catalytic mixed conducting ceramic membrane reactors for methane conversion

Abstract

The application of catalytic mixed conducting ceramic membrane reactors show great promise for industrial processes to produce value-added chemicals. A catalytic membrane reactor combines separation and reaction in one unit...

Effect of Asymmetric Membrane Structure on Hydrogen Transport Resistance and Performance of a Catalytic Membrane Reactor for Ethanol Steam Reforming

“…∂t vanishes in Equation (5). By substitution of the conservation equation for a change in the total molar flow rate between no conversion and complete conversion (Appendix B, Equation (A15)) in Equation ( 5), a molar balance can be defined for each of the components i except for argon: 6)…”

“…Ideal gas law relates the state variables (pressure P, density ρ f , temperature T and production or consumption of species R i ) in the equation system Equation (5). Fluid density in the catalyst layer is calculated by using Equation (A26), in which the average molar mass of the mixture is stated in Equation (A27):…”

“…This intensification technique is expected to be a promising route in creating the sustainable green chemistry-driven energy technologies for small-scale applications. Catalytic membrane reactors are able to provide higher fuel conversion with the advantage of producing a very pure hydrogen stream supply [ 1 , 2 , 3 , 4 , 5 ].…”

A CFD study on the performance of CO2 methanation in a water-permeable membrane reactor system

“…23 Besides, the reduction of steam concentration is beneficial to eliminate the growth of metal crystals, thus mitigating the deactivation of catalysts. 24 In the past decade, catalytic membrane reactors [25][26][27] have aroused much attention, due to their high efficiency and simple operation. For example, H 2 -permeable membrane reactors are commonly employed for H 2 -producing reactions, such as reforming of methane, 28,29 ethanol 30 and so on.…”

Smart Designs of Anti-Coking and Anti-Sintering Ni-Based Catalysts for Dry Reforming of Methane: A Recent Review

“…Many studies have been focused on the conversion of CO 2 and CH 4 (two greenhouse gases) to value-added chemicals or petrochemicals in various processes, such as reforming of methane [1][2][3][4][5][6][7][8], CO 2 methanation [9][10][11][12][13][14][15][16], membrane-assisted reaction [17][18][19][20][21], chemical looping [22], reversed water-gas-shift [23,24], and catalytic decomposition [25]. Therein, dry reforming of methane (DRM) reaction draws much interest because it contributes to the reduction of greenhouse gases (CO 2 and CH 4 ) and generates a mixture of CO and H 2 (syngas), which can be used as fuels and further converted to high value-added petrochemicals [26][27][28][29][30][31].…”