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:
Apr. 10, 2012
Filed:
May. 07, 2008
Stephen DE Haan, Wayne, NJ (US);
Barbara Stancato, Morris Plains, NJ (US);
Brian K. Sullivan, Lafayette, NJ (US);
Charles E. Nagy, Succasunna, NJ (US);
Frank Mccarthy, Wayne, NJ (US);
Stephen De Haan, Wayne, NJ (US);
Barbara Stancato, Morris Plains, NJ (US);
Brian K. Sullivan, Lafayette, NJ (US);
Charles E. Nagy, Succasunna, NJ (US);
Frank McCarthy, Wayne, NJ (US);
Lummus Technology Inc., Bloomfield, NJ (US);
Abstract
Methods are provided for decoking the radiant coils in an ethylene cracking plant. The decoking process is controlled by monitoring the coil outlet temperature to control the rate of burning of coke in the radiant coils. Air flow rates, steam flow rates and coil outlet temperatures are controlled during the decoking process to prevent tube damage, minimize decoking time and maximize coke removal.