Synthesis of Hydrogen and Carbon Monoxide from Methane and Carbon Dioxide over Ni-Al₂O₃ Catalyst

Abstract

The mixed gas of CH₄ (50 %) and CO₂ (50 %) was fed into the porous compacts of alimina-supported Ni (30 vol%) catalyst heated at 673-973 K. Hydrogen was produced by the reaction of the mixed gas (CH₄ + CO₂ → 2CO + 2H₂). A part of produced CO decomposed to CO₂ and C (2CO → CO₂ + C) below 873 K. As a parallel reaction, the decomposition of CH₄ occured in the wide temperature range from 673-973 K. The carbon deposition suppressed the flow of outlet gas.