18-05-2017 дата публикации
Номер: US20170137717A1
Автор:
William Allen Palmer,
Mark G. Bouldin,
Kenneth Francis Gryzbowski,
Stephen Carey Lewis,
Jean-Valery Martin,
PALMER WILLIAM ALLEN,
BOULDIN MARK G,
GRYZBOWSKI KENNETH FRANCIS,
LEWIS STEPHEN CAREY,
MARTIN JEAN-VALERY,
Palmer William Allen,
Bouldin Mark G.,
Gryzbowski Kenneth Francis,
Lewis Stephen Carey,
Martin Jean-Valery
Принадлежит:
The present invention generally relates to a process for purifying vacuum tower asphalt extender (VTAE), from re-refined lubricants, or generally recycled oil via solvent treatment to afford a purified material from certain components with improved benefits for use for instance with petroleum products. 1. A continuous process of purifying Vacuum Tower Asphalt Extender (VTAE) comprising:(a) contacting the VTAE with a hydrocarbon solvent or a hydrocarbon solvent mixture thereof;(b) precipitating a mixture of solid materials with the solvent or solvent mixture;(c) filtering the mixture of solid materials and filtrate;(d) concentrating the filtrate whereby the purified VTAE is obtained;wherein the hydrocarbon solvent or hydrocarbon solvent mixture thereof is able to be recycled back into contacting the VTAE with a hydrocarbon solvent or a hydrocarbon solvent mixture thereof.2. The continuous process according to claim 1 , wherein the hydrocarbon solvent is at least one petroleum-derived hydrocarbon solvent.3. The continuous process according to claim 1 , wherein the hydrocarbon solvent mixture is at least two solvents selected from the group consisting of pentane claim 1 , hexane claim 1 , n-pentane claim 1 , n-heptane.4. The continuous process according to claim 1 , wherein the hydrocarbon solvent is selected from the group consisting of pentane claim 1 , hexane claim 1 , n-pentane claim 1 , n-heptane.5. A continuous process of combining purified VTAE according to with asphalt or bitumen comprising applying a controlled flow of air through the material at a temperature range from 300° F. to 600° F.6. The continuous process of claim 5 , wherein the temperature range is from 350° F. to 500° F.7. The continuous process of claim 5 , wherein the temperature range is from 375° F. to 450° F.8. The continuous process of claim 5 , wherein the temperature range is from 395° F. to 425° F.9. The process according to wherein about 1% purified VTAE is combined with about 99% asphalt ...
Подробнее
