A Dual-Bed Strategy for Direct Conversion of Syngas to Light Paraffins

The authors studied the direct conversion of syngas to light paraffins in a dual-bed fixed-bed reactor. A catalyst composed three catalysts, physically mixed methanol synthesis (CZA), and dehydration dimethyl ether (DME) (Al2O3(C)) were put upper bed for DME, while SAPO-34 (SP34-C) zeolite was lower DME conversion. effects mass ratio CZA Al2O3(C), H2/CO molar ratio, space velocity on catalytic performance bed. Moreover, feed gas with CO/CO2/DME/N2/H2 9/6/4/5 balanced H2 simulated over SP34-C; after optimizing reaction conditions, selectivity reached 90.8%, propane as high 76.7%. For dual bed, 88.9% hydrocarbons obtained at CO 33.4%. This strategy offers potential route valuable chemicals.