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U.S. Department of Energy
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Crossed reaction networks in the catalytic hydrodenitrogenation of synthetic liquid fuels. Quarterly report, November 1, 1981-January 31, 1982

Technical Report ·
OSTI ID:5495903
Kinetic data obtained by reacting quinoline, BzTHQ (5,6,7,8-tetrahydroquinone) or alkyl anilines as a feed dissolved in a paraffin on a sulfided catalyst but in the absence of H/sub 2/S in the gas phase, have now been modeled by computer analysis. Comparison with previous vapor-phase studies showed that the presence of a liquid phase tends to equalize the adsorptivities of the various N-compounds. Hydrogenolysis reactions seem to be slightly slower in the vapor phase and hydrogenation reactions slightly faster, but the overall product distribution differs only slightly between the two phases. The equilibrium between quinoline and Py-tetrahydroquinoline is essentially the same in both phases and is rapidly attained in both. The addition of 5% tetralin to the paraffin carrier liquid had no noiceable effect on the reaction and tetralin itself remained essentially unreacted. Additional information confirms our earlier conclusion that propylcyclohexane is the principal saturated hydrocarbon formed by HDN but with increased contact time it isomerizes completely to butylcyclopentane. In the next quarter modeling of data obtained in the presence of H/sub 2/S will be pursued. Some scouting studies on the effects of oxygenated compounds on the HDN reaction will be made. We plan to study specifically benzodioxane, 2-ethylphenol, 3-ethylphenol, benzofuran, and 1-naphthol.
Research Organization:
Massachusetts Inst. of Tech., Cambridge (USA)
DOE Contract Number:
AC22-80PC30075
OSTI ID:
5495903
Report Number(s):
DOE/PC/30075-8; ON: DE82008180
Country of Publication:
United States
Language:
English