Thermodynamic analysis of hydrogen production from ethanol using CaO as a CO2 sorbent”

JOSE COMAS; MIGUEL LABORDE; NORMA AMADEO

JOURNAL OF POWER SOURCES

Elsevier

Lugar: Amsterdam; Año: 2004 vol. 138 p. 61 - 67

0378-7753

Ethanol steam reforming with and without the presence of CaO as a CO2 sorbent is modeled using ASPEN PLUS process simulator. The simulations involve a steam reformer, a WGS reactor and a CO preferential oxidation reactor when working without CaO and a steam reformer and a COPROX in the presence of CaO. Using CaO the global efficiency is increased. Optimal operation conditions in the presence of CaO are (1) atmospheric pressure, (2) reactor temperatures between 550-700ºC, and (3) water/ethanol relation 4-6. The presence of CaO eliminates the need of a WGS reactor.