Rich n-heptane and diesel combustion in porous media

Journal Article · Thu Apr 15 00:00:00 EDT 2010 · Experimental Thermal and Fluid Science

DOI:https://doi.org/10.1016/J.EXPTHERMFLUSCI.2009.10.017· OSTI ID:21285675

Pastore, A; Mastorakos, E ^[1]

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1. Department of Engineering, University of Cambridge, Cambridge CB2 1PZ (United Kingdom)

Rich n-heptane and diesel flames in two-layer porous media are experimentally investigated in the context of syngas production. The stable operating points of n-heptane reforming have been determined and the mole fractions of H{sub 2}, CO, CO{sub 2} and light hydrocarbons have been measured in the exhaust gas at an equivalence ratio of 2 for different thermal input values. The reformer performance has been assessed also from the point of view of the heat losses and the mixture homogeneity. The pre-vapouriser produces an approximately uniform vapour-air mixture upstream of the flame front. The range of flow rates for stable flames decreased with increasing equivalence ratio. Heat losses were about 10% of the thermal input at high firing rates. A 77.2% of the equilibrium H{sub 2} was achieved at a flame speed of 0.82 m/s. The same reactor with a different porous matrix for the reforming stage demonstrates diesel reforming to syngas with a conversion efficiency of 77.3% for a flame speed of 0.65 m/s. (author)

• OSTI ID: 21285675
• Journal Information: Experimental Thermal and Fluid Science, Vol. 34, Issue 3; Conference: Sixth Mediterranean Combustion Symposium, Corsica (France), 7-11 Jun 2009; Other Information: Elsevier Ltd. All rights reserved; ISSN 0894-1777
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HEPTANE
POROUS MATERIALS
COMBUSTION
CARBON DIOXIDE
HYDROGEN
CARBON MONOXIDE
FLAMES
HEAT
HYDROCARBONS
VELOCITY
FLOW RATE
CONVERSION
EFFICIENCY
GAS FUELS
LAYERS
MATRICES
PERFORMANCE
FLAME PROPAGATION
DIESEL FUELS
SYNTHETIC FUELS
REFORMER PROCESSES
Syngas production
Rich combustion
Porous burners
Superadiabatic combustion
Fuel reforming