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:
Oct. 26, 2010
Filed:
May. 18, 2007
Applicants:
Peter R Ponzi, Randolph, NJ (US);
Francesco Bertola, Nutley, NJ (US);
Robert J Gartside, Summit, NJ (US);
Inventors:
Peter R Ponzi, Randolph, NJ (US);
Francesco Bertola, Nutley, NJ (US);
Robert J Gartside, Summit, NJ (US);
Assignee:
Lummus Technology Inc., Bloomfield, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23D 14/12 (2006.01); B01J 10/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A furnace, firing pattern and method of operating a heater that employs a combination of hearth burners and wall burners for the cracking of hydrocarbons is described. The firing pattern leads to improvements in the uniformity of the coil metal temperatures and vertical heat flux profiles over the firebox elevation. The hearth burners operate with a stoichiometric excess of air while the wall burners operate with less than the stoichiometric amount of air.