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DYNA
versión impresa ISSN 0012-7353versión On-line ISSN 2346-2183
Resumen
MUNOZ, JORGE y POSADA, ALBERTO. SIMULATION OF HYDROGEN AND METHANOL PRODUCTION THROUGH RICE HUSK STEAM GASIFICATION. Dyna rev.fac.nac.minas [online]. 2011, vol.78, n.165, pp.122-131. ISSN 0012-7353.
A process for hydrogen production through rice husk steam gasification is proposed and simulated. The gasification results in a gas composed mainly of hydrogen, carbon monoxide, and steam, in addition to methane, carbon dioxide and nitrogen. The gas is fed to a shift reactor where carbon monoxide reacts with steam to produce more hydrogen and carbon dioxide. Later some of the carbon dioxide is captured as it reacts with hydrogen to produce methanol, resulting in a gas composed mainly of hydrogen, carbon dioxide, and methanol, and with lower amounts of nitrogen, methane and water. Methanol and water are separated by condensation from the non-condensable gases, which in turn are separated from hydrogen by pressure swing adsorption (PSA), that allows production of high purity hydrogen (97,5 % molar) for fuel cell applications. For on-board storage purposes, hydrogen compression to 300 atm is included here
Palabras clave : Hydrogen Production; Biomass Gasification; Biofuels; CO2 Capture; Process Simulation.