Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Coal conversion to liquid and gaseous hydrocarbons in a cross flow moving bed reactor. [Coal particles move horizontally while H/sub 2/ moves vertically]

Conference ·
OSTI ID:7297119
;
A study of coal hydrogenation has been performed in a cross flow moving bed reactor. Coal particles move horizontally in packed form in the reactor while hydrogen moves vertically. Temperature distributions of both gas and solid are obtained by solving the energy equations for packed bed. Weight fractions of carbon, and its gas and liquid products, can be obtained using a three-step coal hydrogenation model as a first approximation. The problem is solved numerically for some practical operating conditions of a reactor using a CDC 7600 computer. The effect of several operating parameters on the temperature distribution of the reactor is examined. Increasing the gas residence time will decrease the temperature of both solid and gas phases. Increasing the solid phase residence time will increase the temperature of both phases. Hydrogen partial pressure does not have any effect on the temperature field. An example of the application of the model to a specific set of conditions is presented. High coal conversion yield such as 60 percent or higher can be obtained in the assumed reactor for the following conditions: hydrogen partial pressure of 100 to 400 atm, solid velocity of 30 to 100 cm/sec, particle size of 50 to 60 ..mu..m, hydrogen velocity of 25 to 30 cm/sec. (auth)
Research Organization:
Brookhaven National Lab., Upton, N.Y. (USA)
OSTI ID:
7297119
Report Number(s):
BNL-20754; CONF-760402-2
Country of Publication:
United States
Language:
English

Similar Records

Coal conversion to liquid and gaseous hydrocarbons in a cross-flow moving-bed reactor
Conference · Wed Oct 01 00:00:00 EDT 1975 · OSTI ID:7366790
Partial liquefaction of coal by direct hydrogenation. Ninth quarterly progress report, July--September 1977
Technical Report · Tue Oct 11 00:00:00 EDT 1977 · OSTI ID:5258687
Mild gasification of coal in a moving bed reactor
Conference · Sat Dec 31 23:00:00 EST 1988 · Prepr. Pap., Am. Chem. Soc., Div. Fuel Chem.; (United States) · OSTI ID:5871401

Related Subjects

01 COAL, LIGNITE, AND PEAT
010403* -- Coal & Coal Products-- Hydrogenation-- (-1987)
010404 -- Coal
Lignite
& Peat-- Gasification
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CARBONACEOUS MATERIALS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
COMPUTERS
ENERGY SOURCES
FLUID FLOW
FLUIDIZATION
FOSSIL FUELS
FUELS
GAS FLOW
HIGH PRESSURE
HYDROGENATION
KINETICS
PARTICLE SIZE
REACTION KINETICS
SIZE