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:
Nov. 24, 2009
Filed:
Sep. 13, 2001
Nael Naguib Zaki, Raleigh, NC (US);
Peter Kelley Kilpatrick, Cary, NC (US);
Ruben Guillermo Carbonell, Raleigh, NC (US);
Nael Naguib Zaki, Raleigh, NC (US);
Peter Kelley Kilpatrick, Cary, NC (US);
Ruben Guillermo Carbonell, Raleigh, NC (US);
North Carolina State University, Raleigh, NC (US);
Abstract
A method of deresinating a crude oil comprises contacting the crude oil with a carbon dioxide containing fluid, the crude oil having an initial API gravity and comprising an oil phase, resins, and asphaltenes, and wherein the carbon dioxide containing fluid enters the oil phase of the crude oil in a manner such that the resins and asphaltenes precipitate out of the crude oil such that the final API gravity of the crude oil is higher than the initial API gravity of the crude oil.