Preview of CO2 utilization in converting to methanol process

Carbon dioxide, a greenhouse gas, has contributed to environmental issues on the planet in the past few years. Thus, it would be helpful to mitigate the impact that caused by carbon footprint, which is trying to reduce the carbon dioxide emission to the atmosphere and utilize it to generate green products for usage. It has been reported that CO_2 reduction could be converted to a valuable fuel source and thus it could be a potential solution to mitigate the impact of CO_2. In this paper, it illustrates three underlying approaches which are conventional heterogeneous catalysis, photocatalysis and electrochemical, and flaws existed inCO_2 converted to CH_3 OH production. Approach mechanism, principles and barriers are included in the following with detailed product selectivity/yield comparison between different catalysts under various conditions. Studies on different approaches have made substantial information focusing on various aspects and recommending the appropriate catalyst for the technique under the specific scenario. Finally, the overview of the research aims to provide feedback on progress made in CH_3 OH production from CO_2 in a large scale along with a summary regarding the future expectations on the research of the methanol conversion approaches developed.