Patent ID: 7993131

Claim:
A burner for conveying an oxidant and an uncombusted gasification feedstock to a gasification reactor, said burner comprising: a body defining an oxidant inlet, an uncombusted gasification feedstock inlet, a body outlet, and one or more passages for conveying said oxidant from said oxidant inlet to said body outlet and for conveying said uncombusted gasification feedstock from said uncombusted gasification feedstock inlet to said body outlet, said body lacking an igniter for igniting the uncombusted gasification feedstock within the body; a nozzle defining a nozzle inlet and a nozzle outlet, wherein said nozzle inlet is configured to receive said oxidant and said uncombusted gasification feedstock from said body outlet and said nozzle outlet is configured to discharge said oxidant and said uncombusted gasification feedstock into said gasification reactor; a first flange extending radially outwardly from said body and a second flange extending radially outwardly from said nozzle, and at least one attachment element for removably securing said first flange and said second flange to one another such that said nozzle inlet is in fluid flow communication with said body outlet when said nozzle is attached to said body; a first o-ring and a second o-ring for providing a substantially airtight junction between the first flange and the second flange when said flanges are removably secured to one another; wherein said airtight junction is suitable for use at the pressures and temperatures typically associated with the gasification of a carbonaceous feedstock without substantial leakage of the junction.