Membranreaktor zur Erzeugung von CO- und CO¶2¶-freiem Wasserstoff

摘要

The invention concerns a reactor for converting methanol into CO- and CO2-free hydrogen. The reactor comprises a membrane (1) which divides it into two chambers. The membrane filters CO2 out of a hydrogen-CO-CO2 mixture. Methanol is introduced into the first chamber (3) and is converted into hydrogen there by means of a catalyst. During this conversion, CO and CO2 are produced as by-products. A burner heats the first chamber, so ensuring that the required conversion temperatures are provided. CO and hydrogen are diffused through the membrane (1) into the second chamber (4) in which CO is converted into methane by means of a catalyst. The resultant hydrogen is now sufficiently free from CO and CO2 and can be fed directly as fuel gas to the anode side of a PEM fuel cell.