Counter-current process with a hydrodesulfurization of solid carbonaceous materials

Patent · Tue Jan 09 04:00:00 EST 1979

OSTI ID:6380195

Nuttall, Jr, H E; Sass, A S

Finely divided, sulfur-bearing, carbonaceous materials are carried by hydrogen in counter-current flow at elevated temperatures to the flow of relatively large, metal oxide, hydrogen-sulfide-accepting pellets. The sulfur contained in the carbonaceous material reacts with the carrier hydrogen to form hydrogen sulfide which, in turn, reacts with the metal oxide to form the corresponding metal sulfide and water. The water and unreacted carrier hydrogen are then separated from the desulfurized carbonaceous material and following separation of water from the residual hydrogen, the hydrogen is recycled with make up hydrogen at elevated pressures to the desulfurization zone. The formed metal sulfide pellets are removed from the base of the desulfurization zone and oxidized back to the oxide state for recycle back to the opposed end of the desulfurization zone.

• Assignee: Occidental Petroleum Corporation
• Patent Number(s): US 4133867
• OSTI ID: 6380195
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402* -- Coal
Lignite
& Peat-- Purification & Upgrading
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
DESULFURIZATION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
HYDROGENATION
NONMETALS
OXIDES
OXYGEN COMPOUNDS
REGENERATION
REMOVAL
SULFIDES
SULFUR
SULFUR COMPOUNDS
WATER REMOVAL