Development of unique catalysts for hydrodenitrogenation of coal-derived liquids. Annual report, September 15, 1979-September 15, 1980

Technical Report · Mon Dec 15 00:00:00 EST 1980

DOI:https://doi.org/10.2172/6528900· OSTI ID:6528900

Katzer, J R; Stiles, A B; Kwart, H

Hydrodenitrogenation of quinoline and decahydroquinoline has been studied employing several catalysts: Bronsted and Lewis acid catalysts without metal, and silica-alumina, ..gamma..-alumina and magnesia impregnated with molybdenum, tungsten, nickel or cobalt. Our results show that nitrogen removal rate was highest for molybdenum on alumina and tungsten on silica-alumina or alumina catalysts. Nitrogen abstraction using ..gamma..-alumina support is considerably faster than with magnesia support. Several catalysts have been prepared and tested, with the emphasis on understanding the role of acidity in the carbon-nitrogen bond scission reaction. Hydrodenitrogenation of quinoline has been studied by using Ni,Mo/chlorided or fluorided alumina catalysts, with various halide concentrations. Preliminary results from this study indicate that halogenation of ..gamma..-alumina catalysts slightly enhanced the hydrogenolysis activity but showed little effect on the hydrogenation activity. Initial results from phenothiazine hydroprocessing show that carbon-sulfur bonds in the reactant are broken much faster than the carbon-nitrogen bonds. Data relevant to this reaction are being evaluated, utilizing kinetic analysis to give quantitative rates of C-N and C-S bond scission and the extents and rates of hydrogenation. Note: this report contains 5th, 6th, 7th and 8th quarterly reports.

• Research Organization: Delaware Univ., Newark (USA). Dept. of Chemical Engineering
• DOE Contract Number: AC22-78ET11429
• OSTI ID: 6528900
• Report Number(s): DOE/ET/11429-T1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CATALYSTS
COMPARATIVE EVALUATIONS
COAL LIQUIDS
DENITRIFICATION
HYDROGENATION
PHENOTHIAZINES
DESULFURIZATION
QUINOLINES
CATALYTIC EFFECTS
CHEMICAL BONDS
CLEAVAGE
COAL LIQUEFACTION
COBALT
LEWIS ACIDS
MOLYBDENUM
NICKEL
STRUCTURAL MODELS
TUNGSTEN
AZINES
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
ELEMENTS
FLUIDS
HETEROCYCLIC COMPOUNDS
HYDROGEN COMPOUNDS
INORGANIC ACIDS
LIQUEFACTION
LIQUIDS
METALS
MICROSTRUCTURE
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PYRIDINES
REFRACTORY METALS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
010405* - Coal
Lignite
& Peat- Hydrogenation & Liquefaction