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New catalysts for coal-liquid upgrading. Quarterly report, September 1-December 31, 1982

Technical Report ·
OSTI ID:6627510
Several silica supported metal catalysts were prepared by impregnating cab-o-sil (HS-5) with an aqueous solution of M(NO/sub 3/)/sub 2/ . 6H/sub 2/O where M is Co, Cu, Ni and Mg. Other new wilica supported copper phthalocyanine catalysts were also prepared. The activity of two cobalt Phthalocyamines is compared to that of cobalt metal at several temperatures in Table 2. It is seen that the activity of (Co(PC)) more closely approaches that of the metal as the temperature increases. One explanation for this is that the complex decomposes to a greater extent at higher temperature and that the most activity catalyst in the system is the metal. Further, the data in Table 3 can be interpreted from the point of view that, as expected, the (Cu(PC)) is more stable at higher temperature. A mixture of substrates that model those compounds typically found in coal liquids was prepared. Although the activity increases with temperature, even at the highest temperature the only reaction noted is the hydrogenation of quinoline. No hydrogenalysis is noted, nor is there any hydrogenation of the other possible substrates in the mixture. Finally the (Co(PC)) is more active than (Cu(PC))/SiO/sub 2/. The activity of (Co(PC)) is greater for quinoline hydrogenation in the model mixture than in decane alone. This synergistic effect is also seen for quinoline with individual members of the mixture. The catalysts (Co(PC))/SiO/sub 2/ and (Sn(PC)Cl/sub 2/)/SiO/sub 2/ are not active in the hydrogenation of pyrrole, pyridine and isoquinoline in the range 250 to 350/sup 0/C. However, activity is observed for multiring substrates. Thus, indole and carbozole are scarcely hydrogenated while quinoline, acridine and quinaldine are substantially hydrogenated.
Research Organization:
Western Kentucky Univ., Bowling Green (USA). Dept. of Chemistry
DOE Contract Number:
FG22-81PC40812
OSTI ID:
6627510
Report Number(s):
DOE/PC/40812-T5; ON: DE83004313
Country of Publication:
United States
Language:
English