Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7719365 | International Journal of Hydrogen Energy | 2014 | 7 Pages |
Abstract
A common method for the production of hydrogen and syngas is solid fuel gasification. This paper discusses the experimental results obtained from the combustion of lean natural gas-air mixtures in a porous medium composed of aleatory alumina spheres and wood pellets, called hybrid bed. Temperature, velocity, and chemical products (H2, CO, CO2, CH4) of the combustion waves were recorded experimentally in an inert bed (baseline) and hybrid bed (with a volume wood fraction of 50%), for equivalence ratios (Ï) from 0.3 to 1.0, and a constant filtration velocity of 15Â cm/s. Upstream, downstream and standing combustion waves were observed for inert and hybrid bed. The maximum hydrogen conversion in hybrid filtration combustion is found to be â¼99% at ÏÂ =Â 0.3. Results demonstrate that wood gasification process occurs with high temperature (1188Â K) and oxygen available, and the lean hybrid filtration process can be used to reform solid fuels into hydrogen and syngas.
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Authors
Karina Araus Karina Araus, Felipe Reyes Felipe Reyes, Mario Toledo Mario Toledo,