Catalytic hydrodeoxygenation of coal-derived liquids and related oxygen-containing compounds
Thesis/Dissertation
·
OSTI ID:5379827
A systematic catalytic hydrodeoxygenation (HDO) study of coal-derived liquids (CDL) and related model oxygen-containing compounds was performed in specially adapted autoclave systems, using sulfided Co-Mo/Al/sub 2/O/sub 3/ and Ni-W/Al/sub 2/O/sub 3/ as catalysts. Starting feedstocks included: (a) polycyclic ketones, viz. 1-tetralone and 2-tetralone; (b) cyclic ethers, viz. isochroman and 1,4-benzodioxan; (c) an aromatic ester, viz. methyl benzoate; (d) phenol; and (e) a representative CDL, viz. SRC-II middle-heavy distillate (b.p. 230 to 455/sup 0/C). Changes in product composition as a function of experimental variables (reaction temperature, hydrogen pressure, reaction time, and catalyst type) were investigated and mechanistic aspects of the HDO reactions elucidated. HDO of the SRC-II distillate was studied as a function of reaction temperature and catalyst by means of elemental ir and C/sup 13/NMR analyses of hydrotreated products. The data were used for a better understanding of the complex HDO reactions involved both in primary liquefaction processes as well as in catalytic CDL upgrading, by correlating the molecular-level data obtained in the study of model O-containing compounds with results of the investigation of the SRC-II distillate.
- OSTI ID:
- 5379827
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010500* -- Coal
Lignite
& Peat-- Products & By-Products
AROMATICS
AUTOCLAVES
BINARY MIXTURES
BOILING POINTS
CARBOXYLIC ACID ESTERS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
COBALT
DISPERSIONS
DISTILLATES
ELEMENTS
ESTERS
ETHERS
FLUIDS
HYDROGENATION
HYDROXY COMPOUNDS
INFRARED SPECTRA
KETONES
KINETICS
LIQUEFACTION
LIQUIDS
MAGNETIC RESONANCE
METALS
MIXTURES
MOLYBDENUM
NICKEL
NUCLEAR MAGNETIC RESONANCE
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHENOL
PHENOLS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
REACTION KINETICS
RESONANCE
SPECTRA
SRC-II PROCESS
SULFIDATION
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TIME DEPENDENCE
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
TUNGSTEN
010405 -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
010500* -- Coal
Lignite
& Peat-- Products & By-Products
AROMATICS
AUTOCLAVES
BINARY MIXTURES
BOILING POINTS
CARBOXYLIC ACID ESTERS
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL LIQUEFACTION
COAL LIQUIDS
COBALT
DISPERSIONS
DISTILLATES
ELEMENTS
ESTERS
ETHERS
FLUIDS
HYDROGENATION
HYDROXY COMPOUNDS
INFRARED SPECTRA
KETONES
KINETICS
LIQUEFACTION
LIQUIDS
MAGNETIC RESONANCE
METALS
MIXTURES
MOLYBDENUM
NICKEL
NUCLEAR MAGNETIC RESONANCE
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHENOL
PHENOLS
PHYSICAL PROPERTIES
PRESSURE DEPENDENCE
REACTION KINETICS
RESONANCE
SPECTRA
SRC-II PROCESS
SULFIDATION
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
TIME DEPENDENCE
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
TUNGSTEN