Upgrading of coal liquids for use as power generation fuels. Final report, February 1978-June 1979

Technical Report · Sat Dec 01 04:00:00 EST 1979

DOI:https://doi.org/10.2172/5507319· OSTI ID:5507319

Angevine, P. J.; Becker, M.; Callen, R. B.; Dabkowski, M. J.; Granchi, M. P.; Green, L. A.; Heck, R. H.; Simpson, C. A.; Shih, S. S.; Stein, T. R.

Residual coal liquids were hydroprocessed in a fixed bed unit to upgrade them to power generation fuels. A series of catalysts was evaluated for the desulfurization of short contact time (SCT) SRC. Low sulfur (0.4 wt %) boiler fuels were produced with hydrogen consumptions as low as 800 and 1200 scf/B from Indiana V regular SRC and W. Kentucky SCT SRC, respectively. Constant temperature aging runs were conducted with both regular and short contact time SRC. A kinetic aging model was developed to estimate process conditions and yields in either a fixed bed or ebullated bed reactor. Chemical characterization indicated that W. Kentucky SCT SRC molecules are significantly larger and more polar than those of Indiana V regular SRC. The high conversion of asphaltenes to less polar material does not appear necessary for SRC desulfurization. A structural comparison was made between SCT SRC recycle solvent and hydroprocess-generated solvent to assess the potential of process solvent in an integrated short contact time SRC/hydrotreating scheme. The alkali metals found in SRC distillate were determined not to be organically bound and are easily removed by water washing or distillation. A heating value correlation was developed from a wide range of raw and hydroprocessed coal liquids, based on elemental composition.

• Research Organization: Mobil Research and Development Corp., Paulsboro, NJ (USA). Process Research and Technical Service Div.
• OSTI ID: 5507319
• Report Number(s): EPRI-AF-1255
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
20 FOSSIL-FUELED POWER PLANTS
200108 -- Fossil-Fueled Power Plants-- Fuels-- (1980-)
BOILER FUEL
CATALYSTS
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
DATA
DATA FORMS
DESULFURIZATION
EXPERIMENTAL DATA
FUELS
GRAPHS
HYDROGENATION
INFORMATION
LIQUEFACTION
NUMERICAL DATA
ORGANIC SOLVENTS
POWER GENERATION
PROCESSING
REFINING
SOLVENT-REFINED COAL
SOLVENTS
SRC PROCESS
TABLES
THERMOCHEMICAL PROCESSES