However, the reformation process of

However, the reformation process of hydrogen production results in unavoidable impurities such as carbon oxides including CO and CO2, and sulfur compounds including H2S and sulfur organics. Steam reforming and partial oxidation or autothermal reforming are usually used to produce hydrogen-richg as called“reformate,” which typically contains 40 to 70% H2,15 to 25% CO2, 1
to 2% CO, small quantities of inertgases (water vapor and nitrogen), and sulfur impurities.