Method and burner for combusting a main fuel with a main oxidizer, whereby flows of the main fuel and the main oxidizer are injected via an injector end, comprising at least one metallic injector, said injector end being positioned in the upstream section of a main passage of a refractory block and whereby multiple jets are injected into the downstream section of the main passage to increase mixing and turbulence of the flows of the main fuel and the main oxidizer.

A gasification reactor comprises a pressure shell; a reaction zone partly bounded by a tubular membrane wall enclosed by the pressure shell; at least one burner having a burner head, said burner head protruding the membrane wall; at least one cooling device arranged in the membrane wall and enclosing the burner head of at least one burner, the at least one cooling device comprising several concentric rings of increasing diameter, forming a truncated cone shape having a largest diameter opening facing the reaction zone and a smallest diameter opening facing the burner head, each ring being a conduit having an inlet and an outlet for a cooling medium, the smallest diameter opening for the burner head being located between the pressure shell and the membrane wall; the cooling device comprising at least one part-circular outer ring having an interruption.

A gas burner assembly for a cooking hob, in particular for a domestic cooking hob, includes at least two burner bases arranged side-by-side-and a burner crown element arranged or arrangeable above the burner bases. At least one burner cap is arranged or arrangeable above the burner crown element. The burner bases are adjustable separately. The burner crown element includes a bottom plate subdivided into at least two portions arranged side-by-side. Each portion of the bottom plate is arranged or arrangeable above one of the burner bases. The burner crown element includes at least two side walls. Each side wall encloses one of the portions of the bottom plate. The burner crown element includes flame ports formed in the side walls. The flame ports are arranged in those sections of the side walls arranged opposite to the adjacent portion or portions of the bottom plate.

A hydrogen gas burner includes a first, axially extending, tubular pipe having an axial slot in a sidewall thereof. An axially elongate duct projects radially outwardly from the axial slot and is in fluid communication with an interior of the pipe. The axially elongate duct has through-holes formed through a wall thereof, communicating the interior of the pipe with an exterior thereof. A second, axially extending, tubular pipe, has an axial opening in a sidewall thereof, the axial opening spanning at least a portion of an axial extent of the second pipe. The first pipe is substantially nested within the second pipe and the axially elongate duct projects radially outwardly through the axial opening. A combination gas valve and pressure regulator fluidly connects hydrogen gas with the first pipe. An igniter ignites and initiates combustion of the hydrogen gas exiting from the first pipe and duct via the through-holes.

A blow torch nozzle (10) having a swirler (26) which is bounded by a generally cylindrical shape (42). The swirler (26) a passageway (28, 40) extending through it defined by a wall surface of the swirler (26). A part of the wall surface extends at an angle to the axis of the nozzle (10) to impart a rotary motion to gases which pass through the swirler (26) in use. The wall surface opens out onto a side of the swirler (42) so the wall surface defines a recess (28, 40) extending inwardly from the side of the swirler (26). The swirler (26) may be provided with a short tube or ring (50) which surrounds the swirler (26) and has ends which are substantially flush with those of the swirler (26). The swirler (26) may be held within the tube or ring (50) by means of an interference fit.

A burner and associated methods are disclosed. The burner comprises a housing and a heat shield. The housing comprises an inlet for receiving gas, one or more outlets for expelling gas, and walls forming a gas cavity for directing the gas from the inlet to the outlet. The heat shield comprises a shield layer configured to cover at least a portion of at least one of the walls to thermally insulate the at least one of the walls from heat outside the gas cavity.

A gas burner for caravans, boats or vehicles in general includes an injector holder to be applied in correspondence with an opening intended to be made in a hob of a caravan, boat or vehicle in general. The injector holder includes at least one injector connected to at least one gas inlet. The burner also includes a flame spreader which is positioned above the injector holder and includes at least one duct in fluid communication with the injector and with at least one distribution chamber of the combustible mixture, to generate at least one crown of flames. The burner further includes: a lid, resting on said flame spreader, delimiting the distribution chamber of the combustible mixture at the top; locking means to prevent or limit movement between the flame spreader and the lid and means for magnetically connecting the injector holder with the flame spreader and/or the lid.

A process of partial oxidation is performed in a reactor which includes a reaction chamber and a burner assembly, wherein: the burner assembly has a single oxidant nozzle located within an fuel channel, said oxidant nozzle comprises a nozzle pipe and a nozzle outlet, the nozzle pipe and the fuel channel are arranged to produce a diffusion flame, the nozzle outlet has a shape with two or more elongate lobes projecting from a center of the nozzle pipe.

A powder coated aluminum barbecue pit burner that burns gas in the same way that stainless steel burner tubes do, but last longer and do not rust. The use of powder coated aluminum makes the burner according to the present invention corrosion resistant. Additionally, the powder coated aluminum burner of the present invention also contain a heat sink element that prevents the temperature of the tubes from getting too high. Controlling temperature and using powder coated aluminum burners, instead of stainless steel, ensures that the burner will last longer. Another embodiment utilizes a water cooled system in connection with the heat sink element.

A nickel-based alloy is coated with a silicate based nickel aluminide slurry diffusion coating.