Back to results
US 4,046,830 AGranted
Method for upgrading Fischer-Tropsch synthesis products
AssigneeMobil Oil Corporation
InventorJames C. Kuo
Life of this patent
Estimating the term…
Abstract
The total product effluent of Fischer-Tropsch synthesis separated from catalyst fines is passed in contact with a crystalline zeolite catalyst represented by ZSM-5 before separation into desired product fractions and C.sub.5 minus gaseous products are catalytically converted to gasoline boiling components.
Claims5
A method for upgrading products of Fischer-Tropsch synthesis comprising normally gaseous and liquid hydrocarbons in combination with organic oxygenates which comprises:
- cascading the total effluent of a Fischer-Tropsch synthesis operation comprising nitrogen, hydrogen, carbon monoxide, carbon dioxide, methane, water, oxygenates and C.sub.2 + hydrocarbons through a catalyst fines removal zone to a zone containing a crystalline ZSM-5 zeolite conversion catalyst and maintained at an elevated pressure and temperature above 500.degree. F.,
- recovering a product effluent of said crystalline zeolite conversion operation comprising less organic oxygenates than the Fischer-Tropsch effluent charged therein and a gasoline product of substantially improved octane rating,
- recovering gaseous products of said crystalline zeolite conversion operation comprising C.sub.5 and lower boiling components,
- catalytically upgrading said C.sub.5 and lower boiling components to form gasoline boiling components and combining the gasoline boiling components thus formed with the gasoline product of improved octane recovered from said zeolite conversion operation.
1 more element
Dependencies are inferred from the claim text.