Integrated two stage liquefaction: extract recycle to first stage. Quarterly technical progress report, January 1-March 31, 1981

Technical Report · Fri Jan 01 04:00:00 EST 1982

OSTI ID:5412975

Schindler, H D; Chen, J M; Potts, J D

This program combines a research study on Catalytic Expanded Bed Hydroprocessing of Coal Extracts (Task 1) and the operation of an Integrated Two-Stage Liquefaction process development unit (Task 2). The Task 1 baseline run closely reproduced earlier results obtained with New Brunswick process development units, when operated at similar reaction conditions. However, a two-to three-fold increase in the internal recycle rate increased extract conversion by as much as 20%. The integrated operation of Task 2 continued with equilibrated solvent. Three Short Contact Time (SCT) runs resulted in conversions of 89.7 to 93.8 percent of the moisture, ash-free (MAF) coal feed. The deasher recovered 74 to 83% of the extract from the SCT product. The second charge of LC-Fining catalyst has accumulated an age of almost 400 pounds of 850/sup 0/F+ feed per pound of catalyst. Conversion activity has held constant, while some decline has been detected in denitrogenation activity. Product quality remains high, with less than 0.2% nitrogen in the C/sub 5/-850/sup 0/F product. The chemical hydrogen consumption in the LC-Fining reaction constitutes about 90% of the overall hydrogen consumption of the Integrated PDU.

• Research Organization: Lummus Co., Bloomfield, NJ (USA); Cities Service Research and Development Co., Tulsa, OK (USA). Cities Service Technical Center
• DOE Contract Number: AC22-79ET14804
• OSTI ID: 5412975
• Report Number(s): DOE/ET/14804-6; ON: DE82009315
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
CONSUMPTION RATES
CORRELATIONS
DATA
DEASHING
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
FUNCTIONAL MODELS
HYDROGEN
HYDROGENATION
INFORMATION
LC-FINING
LIQUEFACTION
LIQUIDS
NONMETALS
NUMERICAL DATA
PROCESS DEVELOPMENT UNITS
RECYCLING
RESEARCH PROGRAMS
THERMOCHEMICAL PROCESSES
TSL PROCESS