IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0967665
(2018-05-01)
|
| 등록번호 |
US-10059642
(2018-08-28)
|
|
발명자
/ 주소 |
- Al-Herz, Mansour Ali
- Hould, Nathan D.
- Al-Asseel, Ahmed
- Algozeeb, Wala A.
- Al-Ghrami, Musaed
|
| 출원인 / 주소 |
- Saudi Arabian Oil Company
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| 대리인 / 주소 |
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| 인용정보 |
피인용 횟수 :
0 인용 특허 :
46 |
초록
▼
Embodiments of methods for converting gas condensate into a product stream comprising propylene comprise feeding gas condensate at a top region of a downflow high severity fluidized catalytic cracking reactor (HSFCC), where the gas condensate comprises: at least 50% by weight paraffins, and less tha
Embodiments of methods for converting gas condensate into a product stream comprising propylene comprise feeding gas condensate at a top region of a downflow high severity fluidized catalytic cracking reactor (HSFCC), where the gas condensate comprises: at least 50% by weight paraffins, and less than 0.1% by weight olefins. The method further comprises feeding catalyst to the top region of the downflow HSFCC reactor in an amount characterized by a catalyst to gas condensate weight ratio of about 5:1 to about 40:1, where the catalyst comprises nano-ZSM-5 zeolite catalyst having an average particle diameter from 0.01 to 0.2 μm, a Si/Al molar ratio from 20 to 40, and a surface area of at least 20 cm2/g. The method further comprises cracking the gas condensate in the presence of the catalyst at a reaction temperature of about 500° C. to about 700° C. to produce the product stream comprising propylene.
대표청구항
▼
1. A method of converting gas condensate into a product stream comprising propylene, the method comprising: feeding gas condensate at a top region of a downflow high severity fluidized catalytic cracking reactor (HSFCC), the gas condensate comprising at least 50% by weight paraffins;feeding catalyst
1. A method of converting gas condensate into a product stream comprising propylene, the method comprising: feeding gas condensate at a top region of a downflow high severity fluidized catalytic cracking reactor (HSFCC), the gas condensate comprising at least 50% by weight paraffins;feeding catalyst to the top region of the downflow HSFCC reactor in an amount characterized by a catalyst to gas condensate weight ratio of about 5:1 to about 40:1, where the catalyst comprises nano ZSM-5 zeolite catalyst having a Si/Al molar ratio from 20 to 40; andcracking the gas condensate in the presence of the catalyst at a reaction temperature of about 500° C. to about 700° C. to produce the product stream comprising propylene. 2. The method of claim 1 further comprising adding steam to the top region of the downflow HSFCC reactor. 3. The method of claim 1, where the cracking occurs at a pressure of about 1 to 2 atm to produce the product stream comprising propylene. 4. The method of claim 1, where the gas condensate comprises less than 0.1% by weight olefins. 5. The method of claim 1, where the Si/Al atomic ratio is from 25 to 35. 6. The method of claim 1, where the product stream comprises at least a 20 wt % yield of propylene. 7. The method of claim 1, where the product stream comprises at least a 10 wt % yield of ethylene. 8. The method of claim 1, where the nano ZSM-5 catalyst is impregnated with phosphorus. 9. The method of claim 1, where the catalyst comprises 10 to 50 wt % of nano ZSM-5 catalyst. 10. The method of claim 1, where the catalyst comprises USY (Ultrastable Y zeolite). 11. The method of claim 10, where the USY catalyst is impregnated with lanthanum. 12. The method of claim 10, where the catalyst comprises 10 to 50 wt % of USY catalyst. 13. The method of claim 1, where the catalyst comprises one or more of alumina, clay, and silica. 14. The method of claim 13, where the clay comprises one or more components selected from kaolin, montmorilonite, halloysite, and bentonite. 15. The method of claim 13, where the catalyst comprises 30 to 70 wt % of clay. 16. The method of claim 13, where the catalyst comprises 2 to 20 wt % of alumina. 17. The method of claim 13, where the catalyst comprises 0.1 to 10 wt % of silica. 18. The method of claim 1, where the reaction temperature is about 550° C. to about 630° C. 19. The method of claim 1, where the gas condensate has a residence time in the downflow fluidized catalytic cracking reactor of 0.7 seconds to 10 seconds. 20. The method of claim 1, where the catalyst to gas condensate ratio is 5:1 to about 10:1. 21. The method of claim 1, where the catalyst comprises the nano ZSM-5 catalyst, USY catalyst, alumina, clay, and silica. 22. The method of claim 1, where the catalyst comprises from 10 to 50 wt % of nano ZSM-5 catalyst, 10 to 50 wt % of USY catalyst, 2 to 20 wt % of alumina, 30 to 70 wt % of clay, and 0.1 to 10 wt % of silica. 23. The method of claim 1, where the gas condensate comprises naphthenes and aromatics. 24. The method of claim 23, where the gas condensate comprises 65 wt % paraffins, 0 wt % olefins, 21 wt % naphthenes, and 15 wt % aromatics. 25. The method of claim 1, where the gas condensate has an initial boiling point of at least 0° C. and a final boiling point of at least 450° C. when measured according to a true boiling point analysis. 26. The method of claim 1, where the nano ZSM-5 zeolites has a surface area of at least 30 cm2/g. 27. The method of claim 1, where the gas condensate has a research octane number (RON) of 70 to 75 according to ASTM 2699 or ASTM 2700. 28. The method of claim 1, where the nano ZSM-5 zeolite catalyst has an average particle diameter from 0.01 to 0.2 μm. 29. The method of claim 1, where the nano ZSM-5 zeolite catalyst has a surface area of at least 20 cm2/g.
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