Comparison of methanol to gasoline conversion in one-step, two-step, and cascade mode in the presence of H-ZSM-5 zeolite

Design of a Compact Microreactor/Heat-Exchanger for a Distributed Production of Liquid Hydrocarbons from Methanol

“…For this reason, thin films of nanosized zeolites [19], zeolite membranes [20], structured zeolite catalysts [21], and zeolite on the inner reactor walls [22,23] attracted much attention, due to improved mass and heat transfer rates. Newly developed zeolite catalysts have significantly improved stability and high activity [24].…”

“…The reactions in the MTH process are exothermic and have a theoretical adiabatic temperature rise around 550 K [47]. In the model, methanol was fed into a microchannel under atmosphere pressure at 653 K with a WHSV of 2.4 h −1 [24]. The reactor is assumed to be properly insulated.…”

“…Coke formation occurs in the reactor, and the catalyst needs to be regenerated. Fast catalyst deactivation happens after ca 20 h [24]; however, a much shorter period is considered in this model.…”

“…A methanol content of 5 vol.% is allowed in fuels according to the European fuel quality directive [46]. Additionally, the selectivity to C 8+ range aliphatic products and stability of the H-ZSM-5 coatings reaches a maximum value at these conditions [24].…”

“…Reversible second-order equations were used for DME synthesis reaction [48]. For the hydrocarbon synthesis step, our previous data [24] were fitted to obtain the lumped kinetic constant k 2. Based on the above considerations, the lumped kinetic model is represented by Equations ( 3)- (9),…”