Hydrodynamic effects on the direct conversion of syngas to methyl acetate in a two-stage fixed-bed/fluidized-bed combined reactor

Statistical analysis and optimization for direct dimethyl ether synthesis from syngas over CuO–ZnO–Al2O3/γ-Al2O3 bifunctional catalysts

“…It is also considered as a potential candidate for solvent-aided recovery processes (Aldalawy et al 2023;Sadeghi Yamchi et al 2020). The high potential of DME as a beneficial chemical intermediate has received much attention for the production of many chemicals such as methyl acetate (Sung et al 2023), and light olefins (Magomedova et al 2023). Moreover, DME has been emerged as an intermediate for diesel fuel used in compression ignition engines because of its high cetane number (Arias et al 2023).…”

Improved catalytic performance in gas-phase dimethyl ether carbonylation over facile NH4F etched ferrierite

“…[19][20][21][22][23] In this route, methyl acetate (MA) is rstly synthesized by the DME carbonylation reaction, which is an important intermediate reaction, and then EtOH is prepared by MA hydrogenation. The zeolites used in the DME carbonylation reaction chiey include mordenite (MOR), 19,[24][25][26][27][28][29][30][31] ferrierite (FER, ZSM-35), 8,[19][20][21][22][32][33][34][35][36][37][38][39][40][41][42][43][44][45] and some novel zeolites (EU-12, 46 SSZ-13, 47 HSUZ-4, 48,49 Al-RUB-41, 50 and T 51 ). Among them, MOR has the highest DME conversion and MA selectivity, but it suffers from severe deactivation owing to the presence of larger 12-membered ring (12-MR) channels.…”