Efficient catalytic reactors-processors for fuel cells and synthesis applications

Pretreated Landfill Gas Conversion Process via a Catalytic Membrane Reactor for Renewable Combined Fuel Cell-Power Generation

“…wherein , (gmol/s⋅cm⋅atm) is the effective permeability coefficient of species via the catalytic or noncatalytic (blank) membrane. It is worthy to declare that in our earlier experimental reaction studies we utilized mesoporous aluminum oxide membranes having a thin permselective layer (3-5 m thickness, 50% porosity) with 40-50Å pore diameter [3,10,11,14]. The membrane is a multilayer structure supported on an a-alumina support (1.5-2.0 mm thickness, 40-45% porosity, and 10-15 m pore diameter).…”

“…In our earlier papers, we have described and analyzed the reaction, separation (i.e., permeation), and process (conversion, yield) characteristics of permreactors (membrane based catalytic reactors) and related processes for methanesteam reforming, water-gas shift, and methane carbon dioxide reforming reactions including catalysis and membrane materials characteristics. The main categories of reactors described were membrane reformers which were utilized as single permreactor [10], permreactor-separator in series or reactor-separator in series and permeactor-permeactor in series [3,10,13,14].…”

Biogas to syngas renewable process for combined efficient power generation

“…In our earlier experimental reaction studies we utilized mesoporous aluminum oxide membranes having a thin permselective layer (3-5µm thickness, 50% porosity) with 40-50Å pore diameter [1], [11],[15], [16]. In the case of a permreactor the corresponding mass, temperature, and pressure variation equations are written as well for the gas which permeates via the membrane wall material and flows in the permeate side (P) of the membrane reactor.…”

“…The main types of reactors described were membrane reformers which were utilized as single permreactor [15]; permreactorseparator or reactor-separator sequence and permreactor-permreactor sequence, [1], [11],[15], [18].…”

“…Computational modeling of the described perm-reformers was performed which shows performance measures (reactant conversion, product yield) versus variation of intrinsic model parameters (reactor space time, reaction temperature and pressure, feed composition, sweep gas to feed gas ratio). The models also analyze and show performance measures under new operating conditions which are of interest to new energy process applications [1], [11], [15].…”