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Ingeniare. Revista chilena de ingeniería

versão On-line ISSN 0718-3305

Resumo

UTRIA S, Khriscia; GONZALEZ B, Freddy  e  TOLEDO T, Mario. Combustion of rich ethane-air mixtures in inert porous media. Ingeniare. Rev. chil. ing. [online]. 2013, vol.21, n.1, pp.159-166. ISSN 0718-3305.  http://dx.doi.org/10.4067/S0718-33052013000100014.

This research develops the theoretical and experimental analysis of ethane-air combustion in inert porous media (IPM) to evaluate hydrogen and syngas production. Temperature profiles, flame propagation rates and major combustion products such as hydrogen (H2) and carbon monoxide (CO), through gas chromatography, are analysed at a range of equivalence ratios between 1.0 and 2.5, with two different alumina sphere diameters composing the porous media. Combustion of ethane-air mixture in IPM is simulated numerically using the PREMIX program with two reaction mechanisms, such as GRI-MECH 1.2 and GRI-MECH 3.0. GRI-MECH 3.0 numerical results predict correctly experimental results for a porous media with 3.5 mm alumina spheres along the range of equivalence ratio. The maximum generation of hydrogen H2 and CO, are 14.3% and 18%, respectively. The conversion rate of ethane in H2 (61.3%) and CO (81%) shows the potential of this fuel as a synthesis gas generator.

Palavras-chave : Combustion; ethane; inert porous media; reaction mechanism; numerical simulation; hydrogen.

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