초록 ▼

The waxy liquid phase of an oil suspension of Fischer-Tropsch catalyst containing dissolved wax is separated out and the wax is converted by hydrocracking, dewaxing or by catalytic cracking with a low activity catalyst to provide a highly olefinic product which may be further converted to premium qu

The waxy liquid phase of an oil suspension of Fischer-Tropsch catalyst containing dissolved wax is separated out and the wax is converted by hydrocracking, dewaxing or by catalytic cracking with a low activity catalyst to provide a highly olefinic product which may be further converted to premium quality gasoline and/or distillate fuel.

대표청구항 ▼

A process for converting synthesis gas to liquid hydrocarbons comprising the steps of: (a) charging said synthesis gas to a Fischer-Tropsch synthesis conversion zone containing a catalyst providing CO reducing characteristiccs to produce a waxy hydrocarbon liquid; (b) separating hydrocarbon wax from

A process for converting synthesis gas to liquid hydrocarbons comprising the steps of: (a) charging said synthesis gas to a Fischer-Tropsch synthesis conversion zone containing a catalyst providing CO reducing characteristiccs to produce a waxy hydrocarbon liquid; (b) separating hydrocarbon wax from said waxy liquid; (c) catalytically cracking said wax in a fluidized bed of acid crystalline zeolite at cracking temperature under process conditions requiring a supply of heat to effect cracking, thereby producing olefinic liquid hydrocarbon crackate in the gasoline and distillate boiling range along with olefinic light gas; (d) recovering distillate range hydrocarbons from the liquid crackate; (e) further converting the olefinic gasoline range hydrocarbon crackate and olefinic light gas under oligomerization conditions in contact with a shape selective medium pore acid oligomerization catalyst to upgrade at least a portion of said olefinic crackate and olefinic light gas to distillate range hydrocarbon product and producing by-product light fuel gas; (f) separating said light fuel gas from step (e) and passing said light fuel gas to cracking step (c) to supply heat thereto.