Process for upgrading wax from Fischer-Tropsch synthesis

Patent · Tue Aug 04 00:00:00 EDT 1987

OSTI ID:6214006

Derr, Jr, W R; Garwood, W E; Kuo, J C; Leib, T M; Nace, D M; Tabak, S A

A processor is described for converting synthesis gas to liquid hydrocarbons comprising the steps of: (a) charging the synthesis gas to a Fischer-Tropsch synthesis conversion zone containing a catalyst providing CO reducing characteristics to produce a waxy hydrocarbon liquid; (b) separating hydrocarbon wax from the waxy liquid; (c) catalytically cracking the wax in a fluidized bed of acid crystalline zeolite at cracking temperature under process conditions requiring a supply of heat to effect cracking, 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 the olefinic crackate and olefinic light gas to distillate range hydrocarbon product and producing by-product light fuel gas; (f) separating the light fuel gas from step (e) and passing the light fuel gas to cracking step (c) to supply heat.

• Assignee: Mobil Oil Corp., New York, NY
• Patent Number(s): US 4684756
• OSTI ID: 6214006
• Resource Relation: Patent File Date: Filed date 1 May 1986
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
ALKENES
FISCHER-TROPSCH SYNTHESIS
BOILING POINTS
CARBON MONOXIDE
CATALYSTS
CATALYTIC CRACKING
CATALYTIC EFFECTS
FLUIDIZED BEDS
FUEL GAS
GASOLINE
PETROLEUM DISTILLATES
POLYMERIZATION
SYNTHESIS GAS
TEMPERATURE DEPENDENCE
WAXES
ZEOLITES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
DISTILLATES
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GAS FUELS
GASES
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LIQUID FUELS
MATERIALS
MINERALS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
PYROLYSIS
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
090121* - Hydrocarbon Fuels- Chemical Synthesis- (1976-1989)