High performance Cu–ZnO/Pd-β catalysts for syngas to LPG

The catalytic performance of Cu–ZnO/Pd-β catalyst for syngas to LPG (Liquefied Petroleum Gas) has been investigated in this paper. The kind of zeolite, SiO2/Al2O3 ratio in Pd-β, Pd-β particle size, Pd content in Pd-β, and reaction conditions, have been optimized. The results showed that the suitable reaction conditions for syngas to LPG over Cu–ZnO/Pd-β are: 325–350 °C, 2.1–3.6 MPa, 4.5–9 g h/mol gas velocity (W/F), and 37–75 ratio of SiO2/Al2O3. At the optimal conditions, Cu–ZnO/Pd-β could exhibit an excellent catalytic performance for syngas to LPG: 72.2% CO conversion, 45.3% hydrocarbon yield and 78.0% LPG selectivity in hydrocarbons could be achieved.