System for combustion of gases of low heating value

Details System for combustion of gases of low heating value System for combustion of gases of low heating value

1978-08-03

1980-05-13

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

With combustible gas generator

60 3914M, 60723, F02C 322, F02c 722

Patent

active

042021693

ABSTRACT:
A gas turbine system for the recovery of power from fuel gases having a low heating value, i.e., below about 80 Btu/scf, and usually in the range of 35 to 70 Btu/scf, has an external catalytic combustor. The catalytic combustor is divided into a primary and a secondary catalytic combustion chamber with a heat exchanger between the two combustion chambers. In the preheater the low heating value gas mixed with combustion air is passed in indirect heat exchange with products of combustion from the first combustion chamber before the low heating value gas is delivered to the first combustion chamber. The turbine system is particularly advantageous in recovering power from low heating value gas in which the combustibles are hydrocarbons, primarily methane.

REFERENCES:
patent: 2624172 (1953-01-01), Houdry
patent: 3113620 (1963-12-01), Hemminger
patent: 3928961 (1975-12-01), Pfefferle
McCrank et al., Power Generation from Shale Oil Off-Gas, ASME paper presented Sep. 1976.
DeCorso et al., Catalysts for Gas Turbine Combustions--Experimental Test Results, ASME paper presented Mar. 1976.

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