A method for providing a fuel includes providing biogas from a plurality of biogas sources, the biogas from each biogas source produced in a process comprising filling a vessel with raw biogas or partially purified biogas to a pressure of at least 1500 psig and transporting the filled vessel to a centralized processing facility by vehicle. A fuel is produced in a fuel production process that includes feeding the biogas transported to the centralized processing facility to a biogas upgrading system that is configured to provide a carbon dioxide removed from the biogas. The removed carbon dioxide is provided for transport by vehicle and/or pipeline and/or sequestered to offset greenhouse gas emissions attributed to compressing the biogas for transport.

A torch assembly for igniting a target fuel includes a torch including an elongate wand having a handle end and an opposing forward end, and a torch head located on the forward end of the wand. The torch head has a central axis. The torch head includes an outer surface, a fuel supply chamber, and a plurality of circumferentially spaced apart jet channels fluidly connecting the fuel supply chamber to the outer surface. Each jet channel is configured such that, when a pressurized flow of a gaseous torch fuel is supplied to the jet channels through the fuel supply chamber and ignited, each jet channel directs a respective flame jet forwardly and radially outwardly from the outer surface at an acute angle to the central axis.

A torch assembly for igniting a target fuel includes a torch including an elongate wand having a handle end and an opposing forward end, and a torch head located on the forward end of the wand. The torch head has a central axis. The torch head includes an outer surface, a fuel supply chamber, and a plurality of circumferentially spaced apart jet channels fluidly connecting the fuel supply chamber to the outer surface. Each jet channel is configured such that, when a pressurized flow of a gaseous torch fuel is supplied to the jet channels through the fuel supply chamber and ignited, each jet channel directs a respective flame jet forwardly and radially outwardly from the outer surface at an acute angle to the central axis.

A gas combustor with function of adjusting combustion angle includes: a handgrip part; a fastening rack, disposed at a top end of the handgrip part, and having at least one positioning disk having an outer circumference annularly disposed with plural positioning slots; and a flame device, wherein one end of flame device has a pivotal part pivoted with the at least one positioning disk, and correspondingly disposed with an elastic buckle mechanism capable of being buckled in each positioning slot at a location corresponding to the at least one positioning disk; with each elastic buckle mechanism being displaced along the outer circumference of the corresponding at least one positioning disk, and buckled in one of the positioning slots according to a desired inclined angle, the flame device is provided with a combustion angle adjusting effect relative to the handgrip part.

[Problems] A flat burner elongated in the longitudinal direction has, at an upper end thereof, a main burner port (63) and a flame retention port (64) positioned at least on laterally one side of the main burner port (63). The flat burner uses hydrogen-containing fuel as a fuel. Flash back is prevented at the flame retention port in which the gas ejection speed becomes relatively small.

[Solving Means] A lean fuel-air mixture which is leaner in fuel concentration than a theoretical fuel-air ratio is ejected from the main burner port (63) and a gas containing only fuel is ejected from the flame retention port (64). In addition, the height, on the side of the main burner port (63), of the upper end of the flame retention port (64), is made lower than the height of the upper end of the main burner port (63).

[Problems] A flat burner elongated in the longitudinal direction has, at an upper end thereof, a main burner port (63) and a flame retention port (64) positioned at least on laterally one side of the main burner port (63). The flat burner uses hydrogen-containing fuel as a fuel. Flash back is prevented at the flame retention port in which the gas ejection speed becomes relatively small.

[Solving Means] A lean fuel-air mixture which is leaner in fuel concentration than a theoretical fuel-air ratio is ejected from the main burner port (63) and a gas containing only fuel is ejected from the flame retention port (64). In addition, the height, on the side of the main burner port (63), of the upper end of the flame retention port (64), is made lower than the height of the upper end of the main burner port (63).

A combustion device includes a first cover, a second cover, an infrared generating mesh, and a gas burner assembly, wherein the first cover has a plurality of through holes. A first half portion of the second cover has at least one hollow portion. A second half portion of the second cover is closed. The infrared generating mesh is disposed between the first cover and the second cover. A flame outlet of the gas burner assembly is located within a projection area of the second half portion. In this way, the intensity of the infrared rays generated by the combustion device could be increased and could be uniform.

A combustion device includes a first cover, a second cover, an infrared generating mesh, and a gas burner assembly, wherein the first cover has a plurality of through holes. A first half portion of the second cover has at least one hollow portion. A second half portion of the second cover is closed. The infrared generating mesh is disposed between the first cover and the second cover. A flame outlet of the gas burner assembly is located within a projection area of the second half portion. In this way, the intensity of the infrared rays generated by the combustion device could be increased and could be uniform.

The invention related to an oxy-fuel torch comprising a handle By which the torch can be manipulated, at least two gas channels arranged through said handle for conveying at least a flow of fuel gas and a flow of oxidizing gas between respective inlets ports and outlet ports, and inlet connectors in fluidic communication with each inlet ports, the inlet connectors being configured to fluidly connect each inlet port to corresponding gas hose via intermediate connection means. According to the each inlet connector is a non-threaded connector and is permanently connected with each inlet port.

The invention related to an oxy-fuel torch comprising a handle By which the torch can be manipulated, at least two gas channels arranged through said handle for conveying at least a flow of fuel gas and a flow of oxidizing gas between respective inlets ports and outlet ports, and inlet connectors in fluidic communication with each inlet ports, the inlet connectors being configured to fluidly connect each inlet port to corresponding gas hose via intermediate connection means. According to the each inlet connector is a non-threaded connector and is permanently connected with each inlet port.