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

Abstract

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.

Gliding Arc Plasmatron: Providing an Alternative Method for Carbon Dioxide Conversion

“…Due to its increasing interest, many researchers are investigating the splitting of CO 2 into CO and O 2 by plasma, both in pure CO 2 as well as in a mixture with other gases like CH 4 , H 2 , or H 2 O . When CO 2 is mixed with such a hydrogen source, value‐added chemicals can be produced, such as syngas, methanol, formaldehyde and formic acid.…”

Effect of Argon or Helium on the CO2 Conversion in a Dielectric Barrier Discharge

“…A large number of experiments have been performed already in pure CO 2 , but also mixed with CH 4 , H 2 , or H 2 O, to form value‐added chemicals. Moreover, a few papers have reported on the mixing of CO 2 (and CH 4 ) with a rare gas, such as He or Ar .…”

A novel method of production of ethanol by carbon dioxide with steam

“…It has been known [13] that in reduction of CO 2 and H 2 O using normal microwave plasma technology, only trace amounts of methanol were obtained.…”