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. 28, 2025
Filed:
Feb. 28, 2024
Chevron U.s.a. Inc., San Ramon, CA (US);
Thomas P. Hoelen, Berkeley, CA (US);
Cesar Ovalles, Walnut Creel, CA (US);
Adam J. Dassey, Houston, TX (US);
Carl W. Lam, San Ramon, CA (US);
Russell E. Cooper, Martinez, CA (US);
Janelle L. Lewis, Spring, TX (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
Disclosed are systems and methods for treating contaminated material. The material is heated by nonconductive and nonconvective heating in a vacuum chamber such that the surface of the material is heated without significant heating of the air within the chamber. The surface of the material is heated to at least a volatilization temperature of the contaminants or to a decomposition temperature of one or more compounds in intimate contact with the contaminants, so that the concentration of contaminants in the material is reduced. Exhaust is removed from the chamber and cooled. A solids and/or liquids collector removes condensed solids and/or liquids and has a gas outlet connected to a vacuum pump.