Coal liquefaction test center. Quarterly technical progress report, July--September 1978

Technical Report · Thu Feb 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/6120732· OSTI ID:6120732

Three periods of integrated operation involved 44 hours of coal extraction with 3 hours of integrated operations; 30 hours of coal extraction with 21 hours of integrated operations; and 142 hours of coal extraction and integrated operations. The hydrogenation portion of the plant processed various mixtures of fresh and stored extract material for 3, 56 and 339 hours during these runs. Run 011 was terminated when level instrument malfunctions allowed the extract/solvent mixture to overfill the first reactor. The mixture congealed in the overhead cooler and plugged almost half of the tubes. Runs 012 and 013 were stopped when process fluids leaked through the internal pressure liner of a reactor recycle pump. In both cases the leak resulted in a fire. In Run 012 the incident occurred as the plant was being shut down due to operating problems with the carbonizer. The carbonizer problems resulted in the destruction of the internal lift-leg. The Run 013 incident happened during normal operations. The duration of integrated operations during Run 013 permits establishment of base conditions with which to compare future results. At an average hydrogenation temperature of 805/sup 0/F, disappearance of the +880/sup 0/F fraction in the hydrogenation feed (conversion) was 53%. The corresponding desulfurization was 90%. An average temperature of 735/sup 0/F was achieved in the extractor; the observed depth of extraction was typically 77%. The 560/sup 0/F temperature of the solvent deashing settling vessel was well below the preferred operating temperatures of 625 to 650/sup 0/F. The lower temperature is due to heat loss and will be compensated for in future runs by utilization of an idle fired heater to reheat the settler feed.

• Research Organization: Fluor Engineers and Constructors, Inc., Irvine, CA (USA)
• DOE Contract Number: EX-76-C-01-1517
• OSTI ID: 6120732
• Report Number(s): FE-1517-72
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
BEARINGS
CHEMICAL REACTIONS
COAL EXTRACTS
COAL LIQUEFACTION
COATINGS
COMPRESSORS
CONTROL EQUIPMENT
CORROSION
EQUIPMENT
EROSION
FABRICATION
FAILURES
FLOW REGULATORS
GAS COMPRESSORS
HYDROGENATION
LIQUEFACTION
NOZZLES
OPERATION
PROTECTIVE COATINGS
PUMPS
SEALS
TEST FACILITIES
THERMOCHEMICAL PROCESSES
VALVES