Short Review: Mitigation of Current Environmental Concerns from Methanol Synthesis

Methanol has become a widely used and globally distributed product. Methanol is very important due to the current depletion of fossil fuels. Industrially, methanol was produced from the catalytic reaction of syn-thetic gas composed of hydrogen, carbon monoxide, and carbon dioxide. Methanol production has brought great attention due to the carbon dioxide as the main source of greenhouse gas emissions. Combined of reducing CO2 emissions and supplying an alternative fuel source has created the idea of a carbon neutral cycle called “the methanol economy”. The best catalyst for the methanol economy leads to a high CO2 con-version and high selectivity for methanol production. This paper investigates a research focused on catalyst development for efficient methanol synthesis from hydrogenation of carbon dioxide through added various supports and additives such as silica, zirconium, and palladium. Catalysts that displayed the highest activi-ty included a zirconia and silicon-titanium oxide promoted Cu/Zn/Al2O3 catalyst. Alternative method of ca-talyst preparation, including the oxalate-gel, solid-state reaction, co-precipitation and combustion method, also investigated.