Kinetics and mechanism of catalytic hydroprocessing of components of coal-derived liquids. Fourth quarterly report, February 15, 1980-May 15, 1980

Technical Report · Mon Nov 10 04:00:00 EST 1980

OSTI ID:5099670

Petrakis, L; Ruberto, R; Gates, B C; Katzer, J R; Kwart, H; Schuit, G C.A.; Stiles, A B

An asphaltene-containing SRC-II coal liquid derived from Powhatan No. 5 mine coal and produced in the Ft. Lewis demonstration plant has been selected for study of catalytic hydroprocessing reactions. Analytical separation by liquid chromatography has been carried out to produce nine distinct fractions from 1 kg of coal liquid. These have been further separated into compound classes and characterized in detail by elemental analysis, mass spectrometry, NMR, and infrared spectroscopy. Compounds typical of each fraction (except asphaltenes) have been designated. Hydroprocessing of polynuclear aromatic hydrocarbons under industrially relevant conditions has shown that these are much more reactive than benzene. The reaction networks involve reversible hydrogenation and isomerization, and significant concentrations of hydroaromatic (hydrogen-donor) species are attainable under practical conditions. Hydroprocessing of solutions containing the following combinations of compounds has also been studied: quinoline/indole, quinoline/indole/dibenzothiophene, and quinoline/indole/naphthalene. Scanning electron microscopy combined with catalytic activity measurements was used to characterize deactivated and regenerated Ni-Mo-Al/sub 2/O/sub 3/ catalysts. EDAX results determined chemical composition of the catalyst and the deposited mineral crust. The results indicate that regeneration of the catalysts can recover much of the activity lost as a result of coke formation.

• Research Organization: Delaware Univ., Newark (USA). Dept. of Chemical Engineering; Gulf Research and Development Co., Pittsburgh, PA (USA)
• DOE Contract Number: AC22-79ET14880
• OSTI ID: 5099670
• Report Number(s): DOE/ET/14880-04; ON: DE82019759
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
AROMATICS
AZINES
AZOLES
BENZENE
CATALYSTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMATOGRAPHY
COAL LIQUEFACTION
COAL LIQUIDS
CONDENSED AROMATICS
DATA
DEACTIVATION
ELECTRON MICROSCOPY
EXPERIMENTAL DATA
FLUIDS
FRACTIONATION
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
HYDROGENATION
INDOLES
INFORMATION
KINETICS
LIQUEFACTION
LIQUID COLUMN CHROMATOGRAPHY
LIQUIDS
MAGNETIC RESONANCE
MASS SPECTROSCOPY
MICROSCOPY
NAPHTHALENE
NUCLEAR MAGNETIC RESONANCE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
POLYCYCLIC AROMATIC HYDROCARBONS
PYRIDINES
PYRROLES
QUINOLINES
REACTION KINETICS
REGENERATION
RESEARCH PROGRAMS
RESONANCE
SEPARATION PROCESSES
SPECTROSCOPY
SRC-II PROCESS
STRUCTURAL MODELS
THERMOCHEMICAL PROCESSES