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Title: Method for the regeneration of spent molten zinc chloride

Patent ·
OSTI ID:863841

In a process for regenerating spent molten zinc chloride which has been used in the hydrocracking of coal or ash-containing polynuclear aromatic hydrocarbonaceous materials derived therefrom and which contains zinc chloride, zinc oxide, zinc oxide complexes and ash-containing carbonaceous residue, by incinerating the spent molten zinc chloride to vaporize the zinc chloride for subsequent condensation to produce a purified molten zinc chloride: an improvement comprising the use of clay in the incineration zone to suppress the vaporization of metals other than zinc. Optionally water is used in conjunction with the clay to further suppress the vaporization of metals other than zinc.

Research Organization:
Conoco Coal Development Co
DOE Contract Number:
EX-76-C-01-1743
Assignee:
Conoco, Inc. (Stamford, CT); United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4257914
OSTI ID:
863841
Country of Publication:
United States
Language:
English