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:
Jan. 30, 2018
Filed:
Mar. 27, 2014
Yibing Zhang, Annandale, NJ (US);
Limin Song, West Windsor, NJ (US);
Geoff Keiser, Morris Plains, NJ (US);
Michael Louis Hergenrother, Kingwood, TX (US);
Berne K. Stober, Esmont, VA (US);
Patricia H. Kalamaras, Milford, NJ (US);
Benjamin Santiago Umansky, Fairfax, VA (US);
Yibing Zhang, Annandale, NJ (US);
Limin Song, West Windsor, NJ (US);
Geoff Keiser, Morris Plains, NJ (US);
Michael Louis Hergenrother, Kingwood, TX (US);
Berne K. Stober, Esmont, VA (US);
Patricia H. Kalamaras, Milford, NJ (US);
Benjamin Santiago Umansky, Fairfax, VA (US);
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY, Annandale, NJ (US);
Abstract
Systems and methods for detecting coking in a wash bed of a vacuum pipe still with a sensing cable including an optical fiber sensor array aligned with a heating element disposed in the vessel. An optical signal interrogator is configured to measure a first temperature profile at a plurality of sensor locations to determine a flow distribution. An excitation source is configured to propagate at least one heat pulse through the heating element and the optical signal interrogator is configured to measure a second temperature profile corresponding to the heat pulse at the sensor locations. A control unit is configured to detect coking by determining one or more properties of the media exposed to the sensing cable at each of the plurality of sensor locations based on the second temperature profile corresponding thereto.