Process for retorting oil shale with maximum heat recovery

Patent · Tue May 15 00:00:00 EDT 1984

OSTI ID:6512571

Deering, R F

Crushed, retorted shale particles recovered from a shale oil retort but still containing combustible materials are burned under oxidizing conditions in a fluidized combustor to remove substantially all of the hydrocarbonaceous materials. Hot combustion flue gases are recovered, divided, and delivered to two heat exchangers, the first for indirectly preheating recycled retort education gases and the second for indirectly heating water. Also recovered from the combustor are shale particles, which are introduced into a fluidized cooling vessel and therein cooled by indirectly exchanging heat with water while traces of residual hydrocarbons burn from the shale.

• Assignee: Union Oil Company of California
• Patent Number(s): US 4448668
• OSTI ID: 6512571
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COMBUSTION
DECOMPOSITION
DESIGN
DISTILLATION EQUIPMENT
ENERGY RECOVERY
ENERGY SOURCES
ENERGY TRANSFER
EQUIPMENT
EXHAUST RECIRCULATION SYSTEMS
EXHAUST SYSTEMS
FLUE GAS
FOSSIL FUELS
FRAGMENTATION
FUELS
GASEOUS WASTES
HEAT EXCHANGERS
HEAT RECOVERY
HEAT TRANSFER
MATERIALS
OIL SHALES
OXIDATION
POLLUTION CONTROL EQUIPMENT
RECOVERY
RETORTING
RETORTS
SPENT SHALES
THERMOCHEMICAL PROCESSES
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION
WASTES