Patent ID: 8545213

Claim:
A method of combustion, the method comprising: combusting a fuel in a combustion region of an up-fired or down-fired reformer, the combustion region being at least partially surrounded by one or more walls, the combusting being performed by a plurality of burners, wherein at least one of the plurality of burners is a wall-bound burner comprising a plurality of injectors and at least one of the plurality of burners is a non-wall-bound burner comprising a plurality of injectors; and forming non-uniform injection properties with the wall-bound burner, the non-uniform injection properties generating a heat profile, the heat profile providing a first heat density proximal to the one or more walls and a second heat density distal from the one or more walls, the second heat density being greater than the first heat density; wherein one or more injection properties of the wall-bound burner are different from one or more injection properties of the non-wall-bound burner, and wherein the non-uniform injection properties of the wall-bound burner are formed by the one or more injection properties of the wall-bound burner, the one or more injection properties of the wall-bound burner and the non-wall-bound burner being selected from the group consisting of an angle of one or more injectors of the plurality of injectors of the wall-bound burner and the non-wall-bound burner, a flow through one or more injectors of the plurality of injectors of the wall-bound burner and the non-wall-bound burner, an amount and/or location of oxidant injectors, the plurality of injectors of the wall-bound burner and the non-wall-bound burner comprising the oxidant injectors, an amount and/or location of fuel injectors, the plurality of injectors of the wall-bound burner and the non-wall-bound burner comprising the fuel injectors, and combinations thereof.