Combustion – Process of combustion or burner operation – Flame shaping – or distributing components in combustion zone
Reexamination Certificate
2007-02-06
2007-02-06
Price, Carl D. (Department: 3749)
Combustion
Process of combustion or burner operation
Flame shaping, or distributing components in combustion zone
C431S008000, C431S348000, C431S174000, C431S178000, C422S078000, C422S198000, C122S240100, C122S356000, C126S09200C, C126S109000, C196S116000
Reexamination Certificate
active
10717087
ABSTRACT:
A pyrolysis heater particularly for the cracking of hydrocarbons in the production of olefins has a burner arrangement in the firebox which includes staged combustion low NOxhearth burners firing upwardly in the firebox adjacent to the walls. Wall stabilizing gas fuel injection tips, located at an elevation above the hearth burners, inject fuel upwardly between the walls and the flame from the hearth burners. This prevents rollover of the flame onto the process heater coil and overheating of the coil.
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Chapman Paul
Gartside Robert John
McCarthy Frank D.
Platvoet Erwin M. J.
Ponzi Peter Robert
ABB Lummus Global Inc.
Alix Yale & Ristas, LLP
Price Carl D.
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