Operation of a coal liquefaction PDU with full gas and liquid recycle capability: effect of superficial gas velocity in reactor

Technical Report · Mon Dec 31 23:00:00 EST 1984

OSTI ID:6335789

Klunder, E B; Mima, J A; Krastman, D

SRC-II liquefaction yield structures were obtained in an 1000 lb (coal) per day liquefaction PDU when operated at typical SRC-II reactor conditions. The PDU is distinguished from Gulf units by a tall reactor design (24m) that allowed operation at commercial superficial gas velocities. Liquefaction of Blackville No. 2 coal demonstrated a significantly improved selectivity toward distillate relative by hydrocarbon gas make, however, when the gas velocity was raised to 0.18 m/sec, the highest value tested, and the nominal residence time was increased to 1.5 hr. The efficiency of hydrogen utilization improved from 7.6 kg distillate yield/kg H/sub 2/ consumed at conventional SRC-II conditions to 11.4 kg distillate/kg H/sub 2/ under the most favorable PDU conditions. 37 references, 24 figures, 15 tables.

• Research Organization: USDOE Pittsburgh Energy Technology Center, PA
• OSTI ID: 6335789
• Report Number(s): DOE/PETC/TR-85/4; ON: DE85004576
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CHEMICAL REACTORS
COAL LIQUEFACTION
COAL LIQUIDS
DATA
DIAGRAMS
DISTILLATES
EXPERIMENTAL DATA
FLOWSHEETS
FLUIDS
FUNCTIONAL MODELS
HIGH PRESSURE
HIGH TEMPERATURE
INFORMATION
LIQUEFACTION
LIQUIDS
NUMERICAL DATA
OPERATION
PROCESS DEVELOPMENT UNITS
RECYCLING
SRC-II PROCESS
THERMOCHEMICAL PROCESSES
YIELDS