CATALYTIC HYDROCRACKING - MECHANISM OF HYDROCRACKING OF LOW TEMPERATURE COAL TAR

The apparent kinetics of hydrocracking of a low temperature tar fraction over a dual-functional catalyst at a constant pressure of 1500 p.s.i. are reported. The rate constants for gasoline formation, desulfurization, deoxygenation, and denitrogenation were consistent with the following equations: Hydrocracking of low temperature tar proceeded through a mechanism involving simultaneous and consecutive cracking, hydrogenation, and isomerization reactions. Cracking reactions involving the breakage of C””C, C's, C””O, and C””N bonds on the surface of the dual-functional catalyst were rate-controlling. © 1969, American Chemical Society. All rights reserved.