Research and development of rapid hydrogenation for coal conversion to synthetic motor fuels (riser cracking of coal). Project 61001 annual report, April 1, 1978-March 31, 1979

Technical Report · Sat Sep 01 04:00:00 EDT 1979

OSTI ID:5699630

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

The effects of operating pressure and heating rate on reactor performance were studied. In addition, several techniques for processing caking coals were explored, and trials of bentonite clay and iron oxide as catalysts were made. In the bench-scale unit program, the main findings can be summarized as follows: At low operating pressure, carbon conversion is low, and increases as operating pressure increases; at high heating rates with negligible residence time at maximum temperature, carbon conversions are reduced, and phenols and cresols form a substantial fraction of the hydrocarbon liquid products; over the range of heating rates studied thus far, liquid yields are better at lower heating rates; in a cocurrent heating mode, the distribution of carbon among products was found to correlate with severity function; unpretreated caking coals can be processed using silica sand or char as inert diluents; caking coal can be pretreated with lime under mild conditions and successfully processed in the bench-scale unit; both bentonite clay and iron oxide have potential catalytic effects, allowing good carbon conversions at low hydrogen to-coal weight ratios. Some support studies were made using the bench-scale unit and other equipment to clarify certain aspects of the PDU in the operation of the preheater and in the operation of the combustor sections. The main findings from these studies are summarized.

• Research Organization: Institute of Gas Technology, Chicago, IL (USA)
• OSTI ID: 5699630
• Report Number(s): FE-2307-50
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
BENCH-SCALE EXPERIMENTS
BENTONITE
CARBONACEOUS MATERIALS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
DATA
DATA FORMS
DECOMPOSITION
ENERGY SOURCES
EXPERIMENTAL DATA
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
GRAPHS
HEATING RATE
HYDROGENATION
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
IRON COMPOUNDS
IRON OXIDES
MINERALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PROCESS DEVELOPMENT UNITS
PYROLYSIS
TABLES
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
YIELDS