Steam reforming of ethanol over supported cobalt catalyst consists of following sequential reactions: dehydrogenation of ethanol to acetaldehyde, decomposition of acetaldehyde to CH4 or steam reforming to CO, and water-gas shift of CO to CO2. To obtain higher hydrogen yield, acetaldehyde has to be reformed but not decomposed. Iron added cobalt catalysts showed the ideal performances and produced more hydrogen. Carbon deposits from acetaldehyde staying on the catalyst surface and carbon precursor was oxidized by supplying water enough for reforming.
ASJC Scopus subject areas
- Chemical Engineering(all)