Hydrogen production from partial oxidation of dimethyl ether

Self-made experiment equipment for reforming hydrogen was developed.The equipment was set up to produce hydrogen-rich gas from partial oxidation of DME.The effects of temperature,air/DME ratio,DME inlet velocity,mass of catalyst and inner diameter of reformer tube on partial oxidation of DME were investigated.At atmospheric pressure,when the temperature increased from 300 ℃ to 500 ℃,both DME conversion and H2 yield increased.The maximum of DME conversion was near to 100%,and the maximum of H2 yield was about 95%.In the product gas,the concentration of H2,CO and CH4 increased,but the concentration of CO2 and DME decreased.When air/DME ratio increased from 0.5 to 3.0,both DME conversion and H2 yield increased,and the concentration of H2 and CO in the product gas increased first and then reduced.When increasing DME inlet velocity,DME conversion and H2 yield and the concentration of H2 and CO in the product gas all reduced.Increasing the amount of the catalyst and reducing the inner diameter of the reformer tube increased DME conversion and H2 yield.