Reactor and method for hydrocracking carbonaceous material. [DOE patent application]

Patent ·

OSTI ID:5601403

Duncan, D A; Beeson, J L; Oberle, R D; Dirksen, H A

Solid, carbonaceous material is cracked in the presence of hydrogen or other reducing gas to provide aliphatic and aromatic hydrocarbons of lower molecular weight for gaseous and liquid fuels. The carbonaceous material, such as coal, is entrained as finely divided particles in a flow of reducing gas and preheated to near the decomposition temperature of the high molecular weight polymers. Within the reactor, small quantities of oxygen containing gas are injected at a plurality of discrete points to burn corresponding amounts of the hydrogen or other fuel and elevate the mixture to high temperatures sufficient to decompose the high molecular weight, carbonaceous solids. Turbulent mixing at each injection point rapidly quenches the material to a more moderate bulk temperature. Additional quenching after the final injection point can be performed by direct contact with quench gas or oil. The reactions are carried out in the presence of a hydrogen-containing reducing gas at moderate to high pressure which stabilizes the products.

• Assignee: TIC; EDB-80-059239; ERA-05-021645
• Patent Number(s): None
• OSTI ID: 5601403
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010406* -- Coal & Coal Products-- Pyrolysis & Cracking-- (-1987)
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
CONTROL
CRACKING
DECOMPOSITION
ENERGY SOURCES
ENTRAINMENT
FOSSIL FUELS
FUELS
HYDROCRACKING
PYROLYSIS
QUENCHING
TEMPERATURE CONTROL
THERMOCHEMICAL PROCESSES