Handling of solids-laden hydrocarbonaceous bottoms in a retort using solid heat-carriers

Patent · Tue Jan 20 00:00:00 EST 1981

OSTI ID:6365518

Wolcott, H B

Crushed mined coal, oil shale or tar sands, feedstocks are retorted in a retort using heat-carrying solids to supply at least fifty percent of the heat required to produce an average retort temperature of between 700/sup 0/F (371/sup 0/C) and 1200/sup 0/F (649/sup 0/C) to produce hydrocarbonaceous gases and oil. The hydrocarbon oils are treated in a manner such that there is produced a bottoms fraction containing organic carbon compounds having a boiling point above 950* F. And particulate inorganic matter derived from the retorted material. The bottoms fraction is fed directly or indirectly into the retort in a manner such that the bottoms fraction does not contact the reheated heat carriers before the heat carrying solids are contacted with the crushed mined feedstock. The bottoms fraction may be fed directly into the retort downstream of the point where the feedstock and heat carriers are first mixed, or the bottoms fraction may be fed into the feedstock before the feedstock enters the retort. This method of handling the bottoms fraction prevents breakage or agglomeration of the heat carrying solids.

• Assignee: Atlantic Richfield Co
• Patent Number(s): US 4246093
• OSTI ID: 6365518
• Resource Relation: Patent File Date: Filed date 26 Jul 1979
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
01 COAL, LIGNITE, AND PEAT
COAL
RETORTING
OIL SANDS
OIL SHALES
CARRIERS
PARTICLES
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
MATERIALS
040402* - Oil Shales & Tar Sands- Surface Methods
010405 - Coal
Lignite
& Peat- Hydrogenation & Liquefaction
010404 - Coal
Lignite
& Peat- Gasification