Enhanced thermal upgrading of heavy oil using aromatic polysulfonic acid salts
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10G-009/16
C10G-009/00
출원번호
UP-0127734
(2005-05-12)
등록번호
US-7594989
(2009-10-12)
발명자
/ 주소
Varadaraj, Ramesh
Brown, Leo D.
출원인 / 주소
ExxonMobile Research and Engineering Company
대리인 / 주소
Bordelon, Bruce M.
인용정보
피인용 횟수 :
0인용 특허 :
36
초록▼
A method for upgrading heavy oils by contacting the heavy oil with a water-soluble aromatic polysulfonic acid salt and then thermally treating the contacted heavy oil. The polysulfonic acid salt can be recovered and recycled from contacting the heavy oil. The polysulfonic acid salt is recovered and
A method for upgrading heavy oils by contacting the heavy oil with a water-soluble aromatic polysulfonic acid salt and then thermally treating the contacted heavy oil. The polysulfonic acid salt can be recovered and recycled from contacting the heavy oil. The polysulfonic acid salt is recovered and recycled. The invention also relates to the upgraded product from the enhanced thermal treatment process.
대표청구항▼
The invention claimed is: 1. A method for upgrading heavy oils which method comprises: a) contacting the heavy oil with an effective amount of a water-soluble inhibitor additive to provide an inhibitor additized heavy oil, which water-soluble inhibitor additive is represented by the chemical struct
The invention claimed is: 1. A method for upgrading heavy oils which method comprises: a) contacting the heavy oil with an effective amount of a water-soluble inhibitor additive to provide an inhibitor additized heavy oil, which water-soluble inhibitor additive is represented by the chemical structure: Ar--(SO3-X+)n where Ar is a homonuclear aromatic group of at least 2 rings, and X is selected from Group I (alkali) and Group II (alkaline-earth) elements of the Periodic Table of Elements, and n is an integer from 1 to 5 when an alkali metal is used and from 2-10 when an alkaline earth metal is used; b) thermally treating said inhibitor additized heavy oil at a temperature in the range of about 250° C. to 500° C. for a time between about 0.1 to 10 hours, thereby resulting in an upgraded the heavy oil; c) contacting said thermally treated additized heavy oil with water wherein the water-soluble inhibitor additive migrates to the water phase; d) separating the thermally treated heavy oil from the water phase containing said inhibitor additive; e) separating the inhibitor additive from the water; and f) recycling said separated inhibitor additive to contacting a heavy oil in step a) above. 2. The method of claim 1 wherein the heavy oil is a vacuum resid. 3. The method of claim 1 wherein X is an alkali metal. 4. The method of claim 3 wherein the alkali metal is sodium. 5. The method of claim 1 wherein the number of rings for Ar is from 2 to 3. 6. The method of claim 4 wherein the number of rings for Ar is from 2 to 3. 7. The method of claim 1 wherein n is 1. 8. The method of claim 6 wherein n is 1. 9. The method of claim 1 wherein the polysulfonic aromatic acid salt is selected from the group consisting of naphthalene-2-sulfonic acid sodium salt, naphthalene-2,6-disulfonic acid sodium salt, naphthalene-1,5-disulfonic acid sodium salt, naphthalene-1,3,6-trisulfonic acid sodium salt, anthraquinone-2-sulfonic acid sodium salt, anthraquinone-1,5-disulfonic acid sodium salt, and pyrene-1,3,6,8-tetra sulfonic acid sodium salt. 10. The method of claim 1 wherein the effective amount of additive is from about 10 to 50,000 wppm based on the weight of the heavy oil. 11. The method of claim 10 wherein the effective amount of additive is from about 20 to 3,000 wppm. 12. The method of claim 8 wherein the effective amount of additive is from about 20 to 3,000 wppm. 13. A method for upgrading a heavy oil, which method comprises: a) contacting the heavy oil in the presence of hydrogen with an effective amount of a water-soluble inhibitor additive to provide an inhibitor additized heavy oil, which water-soluble inhibitor additive is represented by the chemical structure: [R-PNA-(X)n]aMb wherein PNA is a polynuclear aromatic hydrocarbon containing 2 to 15 aromatic rings; X is a sulfonic acid functionality, n is an integer from 1 to 15 representing the number of sulfonic acid functionality on the PNA hydrocarbon; R is an alkyl group containing from 0 to 40 carbon atoms; M is an element selected from the group consisting of Group IV-B, V-B, VI-B, VII-B and VIII of the Long Form of The Periodic Table of Elements; and a and b are integers each ranging from 1 to 4; b) thermally treating said inhibitor additized heavy oil at a temperature in the range of about 250° C. to 500° C. for a time between about 0.1 to 10 hours; c) contacting said thermally treated additized heavy oil with water wherein the water-soluble inhibitor additive migrates to the water phase; d) separating the thermally treated heavy oil from the water phase containing said water-soluble inhibitor additive; e) separating the inhibitor additive from the water; and f) recycling said separated inhibitor additive to contacting a heavy oil in step a) above. 14. The method of claim 13 wherein the heavy oil is a vacuum resid. 15. The method of claim 13 wherein X is an alkali metal. 16. The method of claim 13 wherein the alkali metal is sodium. 17. The method of claim 13 wherein the number of rings for Ar is from 2 to 3. 18. The method of claim 17 wherein the number of rings for Ar is from 2 to 3. 19. The method of claim 13 wherein M is a molybdenum. 20. The method of claim 13 wherein n is 1. 21. The method of claim 19 wherein n is 1. 22. The method of claim 13 wherein the polysulfonic aromatic acid salt is selected from the group consisting of naphthalene-2-sulfonic acid sodium salt, naphthalene-2,6-disulfonic acid sodium salt, naphthalene-1,5-disulfonic acid sodium salt, naphthalene-1,3,6-trisulfonic acid sodium salt, anthraquinone-2-sulfonic acid sodium salt, anthraquinone-1,5-disulfonic acid sodium salt, and pyrene-1,3,6,8-tetra sulfonic acid sodium salt. 23. The method of claim 13 wherein the effective amount of additive is from about 10 to 50,000 wppm based on the weight of the heavy oil. 24. The method of claim 13 wherein the effective amount of additive is from about 20 to 3,000 wppm.
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