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In situ retorting of oil shale with air, steam, and recycle gas

Patent ·
OSTI ID:6784170
;

A flame front is ignited and passed through an underground oil shale retort to produce shale oil. The flame front is supported by a specially blended feed gas consisting essentially of air, steam and retort off gases. Product yield and quality are increased by varying the volumetric ratio of air, steam and retort off gases in the feed gas during retorting in proportion to the oil yield, or the relative richness, leanness and kerogen content of the oil shale being heated by the flame front, or in proportion to the amount of carbon residue on the retorted shale being combusted.

Assignee:
Standard Oil Company, Gulf Oil Corp.
Patent Number(s):
US 4454915
OSTI ID:
6784170
Country of Publication:
United States
Language:
English

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Related Subjects

04 OIL SHALES AND TAR SANDS
040401* -- Oil Shales & Tar Sands-- In Situ Methods
True & Modified
AIR
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHEMICAL REACTORS
CONTROL
DECOMPOSITION
DESIGN
DISTILLATION EQUIPMENT
ENERGY SOURCES
EQUIPMENT
FLUE GAS
FLUIDS
FOSSIL FUELS
FUELS
GASEOUS WASTES
GASES
IN-SITU PROCESSING
IN-SITU RETORTING
KEROGEN
MATERIALS
OIL SHALES
OIL YIELDS
ORGANIC MATTER
PROCESSING
QUALITY CONTROL
QUANTITY RATIO
RETORTING
RETORTS
STEAM
WASTES
YIELDS