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:
May. 03, 2011
Filed:
Aug. 20, 2008
Limin Song, West Windsor, NJ (US);
Mark M. Disko, Glen Gardner, NJ (US);
Jormarie Alvarez, Fairfax, VA (US);
Julio D. Lobo, Baden, CH;
Robert J. Chimenti, Short Hills, NJ (US);
Limin Song, West Windsor, NJ (US);
Mark M. Disko, Glen Gardner, NJ (US);
Jormarie Alvarez, Fairfax, VA (US);
Julio D. Lobo, Baden, CH;
Robert J. Chimenti, Short Hills, NJ (US);
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Abstract
A method to remove coke from a coker drum is disclosed. The method includes the steps of impinging fluid from a fluid jet on the inside surface of the coker and then determining the vibration signal of the coker drum. The signal is then transformed to determine the amplitude versus frequency by a Fourier Transform of the vibration signal. The amplitude change of the vibration signal as it goes through a maximum, determines when the coke layer has been cut. The fluid jet is lowered into a new layer of coke.