Patent Number: 6,168,708

Title: Method for recovery and recycling of hydrocarbon residue

Abstract: The present invention provides for a method for recovering and recycling a hydrocarbon residue from a petroleum material such as crude oil, where the hydrocarbon residue is a waxy solid material. The method comprises providing the hydrocarbon residue in a first vessel; heating a sufficient amount of an organic solvent in a second vessel at an effective temperature for an effective period of time; removing the hydrocarbon residue from the first vessel and adding the hydrocarbon residue to the heated solvent in the second vessel; simultaneously mixing and heating the hydrocarbon residue and the solvent in the second vessel at an effective temperature for an effective period of time to cause a reaction between the hydrocarbon residue and the solvent to produce a liquefied hydrocarbon residue product; pumping the liquefied hydrocarbon residue product out of the second vessel and into a third vessel; and, recycling the liquefied hydrocarbon residue into a usable oil refinery product.

Inventors: Burbridge; Carol S. (Anaheim, CA), Johnson; George W. (Palos Verdes Estates, CA), Nakamura; John P. (Long Beach, CA), Tietavainen; Gary (Los Alamitos, CA)

Assignee: Atlantic Richfield Company

International Classification: C10G 73/00 (20060101); C10G 73/42 (20060101); C10G 1/00 (20060101); C10G 1/04 (20060101); C10M 175/00 (20060101); C10G 073/42 (); C10C 001/20 ()

Expiration Date: 01/02/2018