Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Third quarterly report, December 20, 1975--March 20, 1976. [13 refs. ; dibenzothiophene; Ni-Mo/Al/sub 2/O/sub 3/; Ni-W/Al/sub 2/O/sub 3/; Ni-W/Al/sub 2/O/sub 3/-SiO/sub 2/; Co-Mo/Al/sub 2/O/sub 3/]
The high-pressure liquid-phase flow microreactor is a unique reactor for obtaining quantitative kinetic data for catalytic hydrodesulfurization and hydrodenitrogenation. The hydrodesulfurization of dibenzothiophene involves formation of biphenyl as a primary reaction product without hydrogenation of the aromatic rings. The catalytic hydrodenitrogenation of quinoline involves rapid hydrogenation of the nitrogen-containing ring followed by cracking of the ring to produce an aniline which is slowly hydrodenitrogenated. The hydrodenitrogenation reactions follow first-order kinetics. The order of activity of five commercial hydrotreating catalysts for quinoline hydrodenitrogenation is (Ni--Mo/Al/sub 2/O/sub 3/) > (Ni--W/Al/sub 2/O/sub 3/) > (Ni--W/Al/sub 2/O/sub 3/--SiO/sub 2/) > (Co--Mo/Al/sub 2/O/sub 3/).
- Research Organization:
- Delaware Univ., Newark (USA)
- Sponsoring Organization:
- US Energy Research and Development Administration (ERDA)
- DOE Contract Number:
- E(49-18)-2028
- OSTI ID:
- 7336592
- Report Number(s):
- FE-2028-3
- Country of Publication:
- United States
- Language:
- English
Similar Records
Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Second quarterly report, September 20, 1975--December 20, 1975. [Aged CoO-MoO/sub 3/-SiO/sub 2/-Al/sub 2/O/sub 3/ catalyst pellets used in single-stage liquefaction and hydrosulfurization of coal]
Preparation of Ni—Mo/γ-Al{sub 2}O{sub 3} Catalysts by Vacuum Impregnation and Their Use for Hydrodesulfurization of Dibenzothiophene
Related Subjects
CATALYSTS
DEACTIVATION
EFFICIENCY
CHEMICAL REACTORS
DESIGN
COBALT
CATALYTIC EFFECTS
MOLYBDENUM
NICKEL
ORGANIC SULFUR COMPOUNDS
CHEMICAL REACTION KINETICS
HYDROGENATION
QUINOLINES
TUNGSTEN
ALUMINIUM OXIDES
AMINES
BIPHENYL
COAL LIQUIDS
COMPARATIVE EVALUATIONS
DENITRIFICATION
DESULFURIZATION
HETEROCYCLIC COMPOUNDS
SILICON OXIDES
ALUMINIUM COMPOUNDS
AROMATICS
AZINES
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
HYDROCARBONS
KINETICS
METALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PYRIDINES
REACTION KINETICS
REFRACTORY METALS
SILICON COMPOUNDS
TRANSITION ELEMENTS
010402* - Coal
Lignite
& Peat- Purification & Upgrading
010405 - Coal
Lignite
& Peat- Hydrogenation & Liquefaction