| 摘要 |
PURPOSE:To contrive miniaturization, a cost reduction, simplification and quickening of starting of a contact combustor, by performing the starting of the contact combustor by heating a catalyst up to the temperature whereby reaction is started by contact reaction heat with spare fuel. CONSTITUTION:A catalyst 5 is preheated by feeding substance 10 to be obtained by preheating combustion gas 1 by a preheater 8 at a low temperature to an extent of 30-100 deg.C to the catalyst 5 through air-fuel mixture control part 4 of a contact computer 6. Then the title contact combustor is so constituted that spare fuel 11 in the mixture gas generates complete contact reaction by forming the air-fuel mixture gas with the preheating combustion gas 10 whose spare fuel concentration comes out of explosion limit and introducing the same to the catalyst 5, through reaction heat of which the catalyst 5 is heated up to a starting temperature of contact fuel reaction of propane, which is fuel 2. Then the contact fuel reaction of the fuel is made to start by introducing the air-fuel mixture 3 of the fuel 2, whose concentration comes out of explosion limit, and preheated air 10 to the catalyst 5 through an air-fuel mixture controlling part 4 and when a state reaches to a combustion state, the starting is completed by suspending pouring of the spare fuel 11 and preheating of the combustion gas 1 produced by the preheater 8. |
