RU-2026112265-A - Methods for producing olefinic compounds using oxygen-carrying materials that include iron

Inventors

• БАТТСЕНГЕЛ, Тсатсрал
• ДЖАЛАРИЯ, Маянк
• ЯН, Лу
• ШАРМА, Маниш
• ЛИ, Сунхён
• БЛАНН, Кевин
• МАЛЕК, Анджей
• БЕРДУГО ДИАЗ, Клаудия Евгения
• ГУДФЕЛЛОУ, Брайан В.
• КИРЛИЛИН, Алексей

Assignees

• ДАУ ГЛОБАЛ ТЕКНОЛОДЖИС ЛЛК

Dates

Publication Date

20260505

Application Date

20241031

Priority Date

20231103

Claims (20)

1. 1. A method for producing olefin compounds, comprising:
2. feeding a feed stream into the reactor, wherein the feed stream contains one or more hydrocarbons;
3. feeding oxygen carrier material into the reactor, and in the reactor:
4. one or more hydrocarbons are dehydrogenated to form hydrogen and one or more olefinic compounds; and
5. at least some of the hydrogen reacts with oxygen from the oxygen carrier material to form water;
6. wherein the oxygen carrier material comprises a first composition, wherein at least 95% by weight of the first composition consists of:
7. 1 molar part of iron;
8. from 0.04 molar part to 0.8 molar part of one or more alkali metals;
9. from 0.02 molar parts to 0.4 molar parts tungsten;
10. from 0 molar parts to 3 molar parts titanium; and
11. from 1 molar part to 10 molar parts of oxygen.
12. 2. The method according to paragraph 1, wherein:
13. one or more hydrocarbons comprise ethane, ethylbenzene, propane, butane, or combinations thereof; and
14. one or more olefin compounds comprise ethylene, styrene, propylene, butylene, or combinations thereof.
15. 3. The method according to any one of the preceding claims, wherein the oxygen carrier material is circulated between the reactor and the regeneration unit, wherein the oxygen carrier material exiting the reactor is in a state with a reduced oxygen content, and the oxygen carrier material exiting the regeneration unit is in a state with a high oxygen content.
16. 4. The method of claim 3, wherein the fuel gas is burned in a regeneration unit to heat the oxygen carrier material.
17. 5. The method according to claim 4, wherein the fuel gas comprises hydrogen, methane or combinations thereof.
18. 6. The method of claim 4, wherein the fuel gas comprises methane, ethane, propane, or combinations thereof.
19. 7. The method according to any of the preceding claims, wherein the reactor operates as a fluidized bed reactor.
20. 8. The method according to any of the preceding claims, wherein the reactor is operated at a temperature of from 600°C to 850°C.