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Title: Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Thirteenth quarterly report, June 21-September 20, 1978

Abstract

Studies of competing hydroprocessing reactions catalyzed by Ni-Mo/..gamma..-Al/sub 2/O/sub 3/ and involving quinoline, indole, dibenzothiophene, and naphthalene in n-hexadecane show that marked interactions exist. The naphthalene hydrogenation rate is markedly reduced by the presence of quinoline; whereas the reactivity of quinoline is virtually unchanged by the presence of naphthalene. Similarly the rate of hydrodenitrogenation of indole, a non-basic nitrogen-containing compounds is strongly reduced by the presence of quinoline, whereas the rate of hydro-denitrogenation of quinoline, a basic nitrogen-containing compound, is unaffected by the presence of indole. The hydrogenation reactions in the dibenzothiophene reaction network are inhibited severely as indicated by the reduction in their pseudo first-order-rate constants as are the hydrogenation reactions for naphthalene. Thus the hydrogenation rate is reduced 30-fold by increasing the initial quinoline concentration from 0.0 to 0.5 wt % in naphthalene hydrogenation and in dibenzothiophene hydrodesulfurzation. The rate of direct sulfur removal is reduced by only 3-fold by increasing the quinoline concentration from 0.0 to 0.5 wt %. These results clearly show that the rate expressions for the hydrotreating reactions are of the form given in the text.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Delaware Univ., Newark (USA)
Sponsoring Org.:
US Energy Research and Development Administration (ERDA)
OSTI Identifier:
5809930
Report Number(s):
FE-2028-15
DOE Contract Number:  
EX-76-C-01-2028
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL LIQUIDS; DENITRIFICATION; DESULFURIZATION; REFINING; NICKEL; REMOVAL; SULFUR; CATALYSTS; CATALYTIC EFFECTS; COAL LIQUEFACTION; EXPERIMENTAL DATA; GRAPHS; INDOLES; MOLYBDENUM; NAPHTHALENE; QUINOLINES; STRUCTURAL MODELS; TABLES; AROMATICS; AZINES; AZOLES; CHEMICAL REACTIONS; CONDENSED AROMATICS; DATA; DATA FORMS; ELEMENTS; HETEROCYCLIC COMPOUNDS; HYDROCARBONS; INFORMATION; LIQUEFACTION; METALS; NONMETALS; NUMERICAL DATA; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PROCESSING; PYRIDINES; PYRROLES; REFRACTORY METALS; THERMOCHEMICAL PROCESSES; TRANSITION ELEMENTS; 010402* - Coal, Lignite, & Peat- Purification & Upgrading; 010405 - Coal, Lignite, & Peat- Hydrogenation & Liquefaction

Citation Formats

Gates, B. C., Katzer, J. R., Olson, J. H., Kwart, H., and Stiles, A. B. Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Thirteenth quarterly report, June 21-September 20, 1978. United States: N. p., 1979. Web. doi:10.2172/5809930.
Gates, B. C., Katzer, J. R., Olson, J. H., Kwart, H., & Stiles, A. B. Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Thirteenth quarterly report, June 21-September 20, 1978. United States. https://doi.org/10.2172/5809930
Gates, B. C., Katzer, J. R., Olson, J. H., Kwart, H., and Stiles, A. B. Fri . "Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Thirteenth quarterly report, June 21-September 20, 1978". United States. https://doi.org/10.2172/5809930. https://www.osti.gov/servlets/purl/5809930.
@article{osti_5809930,
title = {Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Thirteenth quarterly report, June 21-September 20, 1978},
author = {Gates, B. C. and Katzer, J. R. and Olson, J. H. and Kwart, H. and Stiles, A. B.},
abstractNote = {Studies of competing hydroprocessing reactions catalyzed by Ni-Mo/..gamma..-Al/sub 2/O/sub 3/ and involving quinoline, indole, dibenzothiophene, and naphthalene in n-hexadecane show that marked interactions exist. The naphthalene hydrogenation rate is markedly reduced by the presence of quinoline; whereas the reactivity of quinoline is virtually unchanged by the presence of naphthalene. Similarly the rate of hydrodenitrogenation of indole, a non-basic nitrogen-containing compounds is strongly reduced by the presence of quinoline, whereas the rate of hydro-denitrogenation of quinoline, a basic nitrogen-containing compound, is unaffected by the presence of indole. The hydrogenation reactions in the dibenzothiophene reaction network are inhibited severely as indicated by the reduction in their pseudo first-order-rate constants as are the hydrogenation reactions for naphthalene. Thus the hydrogenation rate is reduced 30-fold by increasing the initial quinoline concentration from 0.0 to 0.5 wt % in naphthalene hydrogenation and in dibenzothiophene hydrodesulfurzation. The rate of direct sulfur removal is reduced by only 3-fold by increasing the quinoline concentration from 0.0 to 0.5 wt %. These results clearly show that the rate expressions for the hydrotreating reactions are of the form given in the text.},
doi = {10.2172/5809930},
url = {https://www.osti.gov/biblio/5809930}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1979},
month = {3}
}