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U.S. Department of Energy
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Coprocessing of 4-(1-napthylmethyl)bibenzyl with waste tires using finely dispersed iron and molybdenum catalysts

Conference ·
OSTI ID:254805
;  [1]
  1. Auburn Univ, AL (United States)
Coliquefaction of waste tires with coal is a feasible method for upgrading both materials. To evaluate the effect of waste tires on reactions that occur during liquefaction, waste tire and carbon black, a component of tires, were reacted in the presence of 4-(1-naphthylmethyl)bibenzyl (NMBB), a model coal compound known to hydrocrack at liquefaction conditions. Waste tires promoted NMBB hydrocracking compared to no additive although carbon black, introduced at the level present in waste tires increased hydrocracking more. Combining Mo naphthenate with waste tire or carbon black had a higher activity for hydrocracking than the corresponding combinations with Fe naphthenate. Selectivity for NMBB cleavage was also different with the two different catalysts. The addition of S increased the activity of Fe naphthenate with waste tire but decreased that of Mo naphthenate. Increased NMBB hydrocracking of 79.9% was obtained by combining Mo naphthenate and carbon black. Combining Fe naphthenate with carbon black or Mo naphthenate did not increase NMBB hydrocracking compared to the values obtained with the individual materials.
OSTI ID:
254805
Report Number(s):
CONF-940813--
Country of Publication:
United States
Language:
English