Formation of Methanol by Microwave-Plasma Reduction of CO2 with H2O

Article abstract of DOI:10.1246/bcsj.69.241

Reduction of CO₂ with H₂O was carried out by microwave plasma for the formation of methanol. The results of steam chromatography and mass spectrometry showed that the plasma products contained methanol. The methanol formation was also found in H₂O-plasma-cleaning process, in which materials which had been deposited in the reaction between CO₂ and H₂O were removed. The most adequate plasma energy density for the formation of methanol was found to be 0.26 GJ kg^-1 of W/FM. The methanol yield at the system pressure of 400 Pa was 3.5 times higher than at 240 Pa for both the CO₂-H₂O synthetic process and the H₂O-cleaning process.