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

Abstract

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.

Authors:
; ;
Publication Date:
Research Org.:
Delaware Univ., Newark (USA). Dept. of Chemical Engineering
OSTI Identifier:
6528900
Report Number(s):
DOE/ET/11429-T1
DOE Contract Number:  
AC22-78ET11429
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Katzer, J R, Stiles, A B, and Kwart, H. Development of unique catalysts for hydrodenitrogenation of coal-derived liquids. Annual report, September 15, 1979-September 15, 1980. United States: N. p., 1980. Web. doi:10.2172/6528900.
Katzer, J R, Stiles, A B, & Kwart, H. Development of unique catalysts for hydrodenitrogenation of coal-derived liquids. Annual report, September 15, 1979-September 15, 1980. United States. https://doi.org/10.2172/6528900
Katzer, J R, Stiles, A B, and Kwart, H. 1980. "Development of unique catalysts for hydrodenitrogenation of coal-derived liquids. Annual report, September 15, 1979-September 15, 1980". United States. https://doi.org/10.2172/6528900. https://www.osti.gov/servlets/purl/6528900.
@article{osti_6528900,
title = {Development of unique catalysts for hydrodenitrogenation of coal-derived liquids. Annual report, September 15, 1979-September 15, 1980},
author = {Katzer, J R and Stiles, A B and Kwart, H},
abstractNote = {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.},
doi = {10.2172/6528900},
url = {https://www.osti.gov/biblio/6528900}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Dec 15 00:00:00 EST 1980},
month = {Mon Dec 15 00:00:00 EST 1980}
}