Patent ID: 7578669
Filing Date: 2009-08-25
Classification: F23C

Abstract:
1. A hybrid combustor comprising: a first valve for allowing entrance of primary air into said hybrid combustor; a second valve for allowing entrance of fuel into said hybrid combustor; a third valve for allowing entrance of secondary air into said hybrid combustor; a flame burner with a spark ignitor for startup of said hybrid combustor; a high temperature deflectory plate; a fourth valve for allowing entrance of said fuel into said hybrid combustor wherein mixing point of said fuel, said primary air, and said secondary air is located right before combustion zone of said hybrid combustor; a reformate distributor; a catalytic burner wherein said catalytic burner comprises a catalyst bed; a heat exchanger; an integrated heat recovery unit located downstream of said catalytic burner wherein said integrated heat recovery unit comprises a cylindrical annulus wherein flue gas from said catalytic burner passes through said cylindrical annulus three times; a boiler wherein said boiler compromises both flow boiling and pool boiling; a bell shaped evaporator; big coils for gas further heating; small coils for steam superheating; and a rolled fin type heat exchanger.