Experimental and kinetic modeling studies of methanol synthesis from CO2 hydrogenation using In2O3 catalyst

Catalytic hydrogenation of CO2 to methanol has gained considerable interest for its significant role in utilization using heterogeneous catalysts. This study is the first propose a kinetic model based on Langmuir-Hinshelwood-Hougen-Watson (LHHW) mechanism over highly effective indium oxide (In2O3) catalyst. The work focuses different reaction conditions mainly revolving around variation operating temperature, total reactor pressure, H2/CO2 molar feed ratio and weight hourly space velocity (WHSV) system. experimental data were modeled competitive single-site LHHW rate equations. A parameter optimization procedure was undertaken determine parameters developed predicts that when synthesis becomes equilibrium limited, progress RWGS forces yield decrease due reversal reaction. mixture H2 been used as all cases. Significantly w.r.t. partial initially increased then slightly decreased indicating varying order. accurately predicted trends which would enable development reliable process designs.