Studies on Carbon Neutrality over bi-functional FTS hybrid catalyst for Application in GTL-FPSO process

Abstract

In the GTL process, Fischer-Tropsch synthesis (FTS) reaction is known as a key catalytic process that converts synthesis gas (CO + H2) to value-added hydrocarbon products. The CO2 utilization in FTS process takes the possibility to reduce the greenhouse gases and utilizes the captured CO2 in an economic and environmentally-friendly way. In this study, the zeolite was synthesized by a conventional hydrothermal method, and Co/γ-Al2O3 catalyst was prepared by an impregnation method. The cobalt based hybrid FTS catalyst was prepared by physically mixing Co/γ-Al2O3 with zeolite. The effect of CO2 ratio in syngas was investigated on conversion and selectivity. The physiochemical properties of all prepared catalysts were characterized by XRD, BET and NH3-TPD techniques. It was found that the hybrid catalyst showed relatively lower alpha value and higher methane selectivity than the Co/γ-Al2O3 catalyst because zeolite has high acidity.