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Integrated coking-gasification process with mitigation of slagging

Patent ·
OSTI ID:5586439
;
This patent improvement in a fluid-gasification process for converting heavy hydrocarbonaceous materials to lower boiling products, which comprises: introducing a heavy hydrocarbonaceous chagestock into a coke zone; introducing a portion of the solids with coke deposited thereon into a heating zone; recycling a potion of the heated solids from the heating zone to said coking zone; introducing a second portion of the heated solids from the heating zone to a gasification zone; and reacting the second portion of heated solids in the gasification zone with steam and an oxygen-containing gas. The improvement comprises: using an effective amount of a zeolitic material to prevent slagging in the gasifier, wherein the zeolitic material is introduced into the process by: adding it directly into the gasification zone through the bottom of the gasifier; or mixing it with the portion of heated solids passing from the hating zone to the gasification zone.
Assignee:
Exxon Research and Engineering Co., Florham Park, NJ (USA)
Patent Number(s):
A; US 5039394
Application Number:
PPN: US 7-519336
OSTI ID:
5586439
Country of Publication:
United States
Language:
English

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Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
010409 -- Coal
Lignite
& Peat-- Pyrolysis & Carbonization-- (1987-)
010800* -- Coal
Lignite
& Peat-- Waste Management
04 OIL SHALES AND TAR SANDS
040900 -- Oil Shales & Tar Sands-- Waste management
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CARBONIZATION
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COAL GASIFICATION
COKING
DECOMPOSITION
ENERGY SOURCES
FLUIDIZED BED REFUSE GASIFICATION
FOSSIL FUELS
FUELS
GASIFICATION
HYDROCARBONS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
LURGI SLAGGING PROCESS
MANAGEMENT
MATERIALS
MINERAL OILS
MINERALS
OIL SHALES
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PROCESSING
ROCKS
SEDIMENTARY ROCKS
SHALE OIL
SHALES
SILICATE MINERALS
THERMOCHEMICAL PROCESSES
VISCOSITY
WASTE MANAGEMENT
WASTE PROCESSING
ZEOLITES