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Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Ninth quarterly report, June 21, 1977--September 20, 1977

One of 4 reports in the title: Kinetics and Mechanism of Catalytic Hydroprocessing of Components of Coal-Derived Liquids Quarterly Report available on this site.
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Flow reactor studies of HDS of dibenzothiophene at about 300/sup 0/C and 100 atm have shown a new dependence of catalyst activity on H/sub 2/S concentration at low values. We infer that the catalyst undergoes structural changes during reaction, sometimes becoming sulfur deficient and relatively inactive. It is evidently necessary to maintain the catalyst in a properly sulfided state during reactor startup and operation by avoiding its contacting too little H/sub 2/S. The relative activities of Ni--Mo/Al/sub 2/O/sub 3/, CO--Mo/Al/sub 2/O/sub 3/, and Ni--W/Al/sub 2/O/sub 3/ catalysts for HDN of acridine have been determined, showing that Ni--Mo/Al/sub 2/O/sub 3/ is … continued below

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79 pages

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Gates, Bruce C.; Katzer, James R.; Olson, Jon H.; Kwart, Harold & Stiles, Alvin B. May 1, 1978.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 32 times. More information about this report can be viewed below.

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Flow reactor studies of HDS of dibenzothiophene at about 300/sup 0/C and 100 atm have shown a new dependence of catalyst activity on H/sub 2/S concentration at low values. We infer that the catalyst undergoes structural changes during reaction, sometimes becoming sulfur deficient and relatively inactive. It is evidently necessary to maintain the catalyst in a properly sulfided state during reactor startup and operation by avoiding its contacting too little H/sub 2/S. The relative activities of Ni--Mo/Al/sub 2/O/sub 3/, CO--Mo/Al/sub 2/O/sub 3/, and Ni--W/Al/sub 2/O/sub 3/ catalysts for HDN of acridine have been determined, showing that Ni--Mo/Al/sub 2/O/sub 3/ is the most active. The results are interpreted inthe context of the acridine reaction network, in which both the hydrogenation and hydrogenolysis (cracking) reactions are kinetically important.

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79 pages

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Dep. NTIS, PC A05/MF A01.

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  • May 1, 1978

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  • Feb. 22, 2018, 7:45 p.m.

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  • Feb. 10, 2022, 11:56 p.m.

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Thumbnail image of item number 1 in: 'Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Ninth quarterly report, June 21, 1977--September 20, 1977'.
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Gates, Bruce C.; Katzer, James R.; Olson, Jon H.; Kwart, Harold & Stiles, Alvin B. Kinetics and mechanism of desulfurization and denitrogenation of coal-derived liquids. Ninth quarterly report, June 21, 1977--September 20, 1977, report, May 1, 1978; Newark, Delaware. (https://digital.library.unt.edu/ark:/67531/metadc1109043/: accessed January 19, 2025), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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