A method for refinery foulant deposit characterization
CA 2573620 C · Owner: Exxonmobil Research And Engineering Company · Inventors: Joshi, Himanshu; Brons, Glen Barry; Bruno, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a method to identify a refinery solid foulant of unknown composition including the following steps: obtaining a solid foulant sample, removing trapped feed from the sample with a solvent to obtain an insoluble sample, scanning the insoluble sample with a scanning electron microscope and energy dispersive x-rays performing a thermal gravimetric , analysis including an ash test on the insoluble sample to determine the presence of polymer, coke and inorganic elements performing an elemental , analysis on the insoluble sample for the elements carbon hydrogen, sulfur, nitrogen, halogens, and metals performing an optical microscopy on the insoluble sample to …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed July 15, 2005 and granted August 26, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 15, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.