Reactor and method for hydrocracking carbonaceous material

Patent · Tue Nov 18 04:00:00 EST 1980

OSTI ID:6175530

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

This improved coal-conversion process provides (1) a method of hydrocracking carbonaceous material that permits convenient temperature control with minimal use of external heat sources during the heat-temperature decomposition, (2) a method of coal hydropyrolysis in which coal particles are briefly exposed to high temperature for decomposition of high-molecular-weight material followed by rapid quenching, and (3) a reactor adapted for the hydropyrolysis of carbonaceous materials at elevated temperatures and pressures. Particularly suitable for conversion of lignite and bituminous coal to liquid and gaseous products, this process cracks the coal in the presence of hydrogen or other reducing gas to provide aliphatic and aromatic hydrocarbons of lower molecular weight. The process is described.

• Assignee: Dept. of Energy
• Patent Number(s): US 4234407
• OSTI ID: 6175530
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
BITUMINOUS COAL
BLACK COAL
BROWN COAL
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CHEMICAL REACTORS
COAL
COAL GASIFICATION
CRACKING
DECOMPOSITION
DESIGN
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
HYDROCRACKING
LIGNITE
MATERIALS
PYROLYSIS
THERMOCHEMICAL PROCESSES