Conversion of synthesis gas to aromatics at medium temperature with a fischer tropsch and ZSM-5 dual catalyst bed

The production of base chemicals such as olefins and aromatics from synthesis gas is great interest both an academic industrial point view. We prepared a bulk iron Fischer Tropsch catalyst promoted with potassium capable converting to combined it H-ZSM-5 zeolite convert the formed on acid sites. All experiments were performed in stacked bed mode avoid migration promoters zeolite, which can deactivate sites zeolite. Operating at pressure 20 bar temperatures between 250 °C 300 instead high 300−350 led methane selectivity only 7–14 %C. Olefins range C4–C8 converted initial section bed, while further into C2-C3 oligomerized longer alkylated light forming heavier aromatic hydrocarbons. Investigation influence CO conversion aromatization showed maximum (excluding CO2) 18 %C medium (XCO = 26–47 %). This work provides detailed insight chemical events that occur bifunctional beds contribute development process single reactor.