Catalysts and process for liquid hydrocarbon fuel production
The present invention provides a novel process and system in which a mixture of carbon monoxide and hydrogen synthesis gas, or syngas, is converted into hydrocarbon mixtures composed of high quality distillates, gasoline components, and lower molecular weight gaseous olefins in one reactor or step. The invention utilizes a novel supported bimetallic ion complex catalyst for conversion, and provides methods of preparing such novel catalysts and use of the novel catalysts in the process and system of the invention.
1. A process for the production of hydrocarbon fuel products from synthesis gas, the process comprising:
producing hydrocarbon fuel products in a single reactor system, wherein chemical reactions occur in the presence of a dinuclear metal ion based catalyst and
wherein the dinuclear metal ion is from a metal ion complex where the cation is a +2 charged metal ion and the ligands are anionic organic compounds derived from triketonate anions.
2. The process of claim 1 , wherein the synthesis gas is contacted in a Fischer-Tropsch reaction with the catalyst.
3. The process of claim 2 , wherein the catalyst is a dinuclear metal ion complex supported on a support comprising a high-surface-area metal oxide and wherein the dinuclear metal ion complex comprises the active phase for syngas conversion.
4. The process of claim 3 , wherein the dinuclear metal ion complex comprises a syngas conversion agent derived from a list of transition metal ions comprising cobalt, iron, nickel, copper, manganese, molybdenum, ruthenium, and pair-wise combinations of these metal ions or metal oxides.
5. The process of claim 4 , wherein the dinuclear metal ion complex further comprises at least one metal modifier selected from the elements consisting of Groups 1A and 2A of the Periodic Table.
6. The process of claim 3 , wherein the support comprises silica, alumina, titania, or a zeolite.
7. The process of claim 6 , wherein the support comprises a zeolite which further comprises at least one member selected from the group consisting of the zeolite-based heterogeneous catalyst HZSM-5, Mordenite, MCM-22, MCM-41, H-Y-faujasite, and H-beta zeolites.
8. The process of claim 2 , wherein the catalyst is derived from the decomposition of a dinuclear metal ion complex comprising an oxide represented by MO encaged in a zeolite, where M is at least one metal cation and O is at least one oxide anion, and wherein the decomposition product of the dinuclear metal ion complex comprises the catalytically active phase.
9. The process of claim 8 , wherein the dinuclear metal ion complex further comprises a syngas conversion agent.
10. The process of claim 9 , wherein the syngas conversion agent is derived from a list of transition metal ions comprising cobalt, iron, nickel, copper, manganese, molybdenum, ruthenium, and pair-wise combinations of these metal ions or metal oxides.
11. The process of claim 10 , wherein the dinuclear metal ion complex further comprises at least one metal ion modifier selected from the elements consisting of Groups 1A and 2A of the Periodic Table and mixtures of the aforementioned elements.
12. The process of claim 8 , wherein the zeolite comprises a support.
13. The process of claim 12 , wherein the zeolite comprises one or more members selected from the group consisting of the zeolite-based heterogeneous catalyst HZSM-5, Mordenite, MCM-22, MCM-41, H-Y-faujasite, and H-beta zeolites.
14. The process of claim 1 , wherein the hydrocarbon fuel products comprise liquid hydrocarbons and gas hydrocarbons and wherein the products are separated in a separation unit.
15. The process of claim 14 , wherein the gas hydrocarbons are fed to and processed through a steam reformer and returned to the single reactor system.
16. The process of claim 14 , wherein the process comprises a metal oxide support that comprises one or more members selected from the group consisting of silica alumina, silica, alumina, titania, and a zeolite.
17. The process of claim 16 , wherein the catalyst is encaged in a zeolite support comprising one or more members selected from the group consisting of HZSM-5, Mordenite, MCM-22, MCM-41, H-Y-faujasite, and H-beta zeolites.
18. The process of claim 1 , wherein the chemical reactions occur in the single reactor system and wherein the dinuclear metal ion based catalyst comprises at least one cobalt metal or metal oxide.
19. The process of claim 18 , wherein the catalyst is supported on a support selected from the group consisting of silica alumina, silica, alumina, titania, and a zeolite.
20. The process of claim 19 , wherein the chemical reactions produce hydrocarbon fuel products which further comprise liquid hydrocarbons and gas hydrocarbons and wherein the products are separated in a separation unit.
21. The process of claim 19 , wherein the chemical reactions produce high quality distillates, gasoline components, and lower molecular weight gaseous olefins.
22. The process of claim 4 , wherein the dinuclear metal ion complex catalysts are deposited onto the support as a monolayer.
23. The process of claim 4 , wherein the dinuclear metal ion complex catalysts are deposited onto the support in multilayers.
24. The process of claim 3 , wherein the support comprises silica.
25. The process of claim 24 , wherein the catalyst comprises at least one cobalt metal or metal oxide.