The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 06, 1993
Filed:
May. 08, 1992
Applicant:
Inventor:
Gregory L Johnson, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23L / ;
U.S. Cl.
CPC ...
431115 ; 431207 ; 431190 ;
Abstract
A novel fuel burner is disclosed for the combustion of fuel in the presence of flue gas and water added to the nozzle tip in a liquid phase through a water outlet means at the nozzle. Steam is used as an indirect heat exchange fluid to cool the steam to water (used in the combustion) and to heat the flue gas passed to the burner. The orifices of the water outlet means are configured to insure a sufficient amount of water flow to reduce NO.sub.x (by increasing the amount of flue gas) and to insure that the flame of the burner is not extinguished.