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Regeneration of zinc halide catalyst used in the hydrocracking of polynuclear hydrocarbons

Patent ·
OSTI ID:863042
Improved recovery of spent molten zinc halide hydro-cracking catalyst is achieved in the oxidative vapor phase regeneration thereof by selective treatment of the zinc oxide carried over by the effluent vapors from the regeneration zone with hydrogen halide gas under conditions favoring the reaction of the zinc oxide with the hydrogen halide, whereby regenerated zinc halide is recovered in a solids-free state with little loss of zinc values.
Research Organization:
Conoco Coal Development Co
Assignee:
Continental Oil Company (Stamford, CT)
Patent Number(s):
US 4081400
OSTI ID:
863042
Country of Publication:
United States
Language:
English