LOW NOx BURNER FOR ETHYLENE CRACKING FURNACES AND OTHER HEATING APPLICATIONS

摘要

A burner assembly for and method of producing ethylene having a mechanism to inject either primary fuel, staged fuel, or both by premix methods before combustion in a furnace. The burner assembly has at least one premix injection assembly for either exclusively primary fuel or exclusively staged fuel injection paired with a nozzle mix injection or injection means for primary and staged fuel both by premix methods. The primary fuel premix assembly associates with a burner tile that consists of multiple inlets and outlets connected by venturi channels to direct and combine combustion air and staged fuel coming from staged fuel orifice spuds. Primary fuel and combustion air are mixed in a premix assembly and directed inside the furnace, and above the burner tile to complete the reaction with the staged fuel and combustion air mixture in a combustion zone inside of the furnace.

主权项

1. A burner assembly for a furnace, comprising:
at least one primary premix venturi and tip assembly associated with and extending outward from a burner tile; at least one staged fuel tip associated with said burner tile; said burner tile including:
a connective opening for communication with the at least one venturi and tip assembly;a discharge opening to discharge a primary fuel and air mixture in a furnace;multiple angled discharge outlets; andmultiple combustion air inlets to receive combustion air from outside of said furnace, wherein said multiple combustion air inlets fluidly connect to said multiple angled discharge outlets, respectively.