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New catalysts for coal liquid upgrading. Final technical report

Technical Report ·
OSTI ID:6648254
Supported Metallophthalocyanines ((M(PC))/Inorganic oxide) are active in the hydrogenation of quinoline to 1,2,3,4-tetrahydroquinoline in decane at 200 to 350/sup 0/C and 500 to 3000 psi H/sub 2/ pressure. The reduced forms, Li/sub 4/(M(PC)) (M = Mo, Sn, Co, Cu), do not show enhanced activity in comparison to the (M(PC)). The conversion to product is directly proportional to the reaction time, catalyst loading level, H/sub 2/ pressure and temperature, inversely proportional to the initial quinoline concentration and independent or reactor stirring rate. In a model mixture containing phenanthrene (10 wt %), dibenzothiophene (8%), dibutylsulfide (5%), quinoline (20%), dibenzofuran (5%), p-cresol (5%) and decane (47%) only the quinoline is hydrogenated to 1,2,3,4 tetrahydroquinoline at 200 to 350/sup 0/C and 1000 psi H/sub 2/ pressure. No hydrogenolysis is noted. Other substrates that are not hydrogenated are: benzene, toluene, xylenes, naphthalene, pyrrole, pyridine, o-ethylaniline, 1,2,3,4 tetrahydroquinoline, 5,6,7,8 tetrahydroquinoline, isoquinoline, carbazole and 7,8 benzoquinoline. Substrates which are hydrogenated include quinaldine to 1,2,3,4 tetrahydroquinaldine, indole to indoline, acridine to 9.10 dihydroacridine, phenanthridine to 9.10 dihydrophenanthridine and 5.6 benzoquinoline to 1,2,3,4 tetrahydro 5,6 benzoquinoline. Tin(II) salts supported on inorganic oxides are active in the hydrogenation of quinoline to 1,2,3,4-tetrahydroquinoline at 200 to 350/sup 0/C and 500 to 3500 H/sub 2/ pressure. The formation of product follows pseudo first order kinetics with rate constants in the range 10/sup -5/ to 10/sup -4/sec/sup -1/ at 250/sup 0/C and 1000 psi H/sub 2/. The rate is dependent on the catalyst loading level, the H/sub 2/ pressure and the temperature with an apparent activation energy of approx. 13 Kcal/mole. 32 references, 12 figures, 42 tables.
Research Organization:
Western Kentucky Univ., Bowling Green (USA). Ogden Coll. of Science, Technology and Health
DOE Contract Number:
FG22-81PC40812
OSTI ID:
6648254
Report Number(s):
DOE/PC/40812-T11; ON: DE84015921
Country of Publication:
United States
Language:
English