Thermal hydrodealkylation of alkyl phenols
AssigneeHydrocarbon Research, Inc.
InventorFrancis P. Daly
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Abstract
The present invention provides a process, for the thermal dealkylation of alkylated phenols, which process comprises reacting a feed solution containing alkylated phenols and gaseous hydrogen in the presence of water vapor, the reaction being carried out at total pressure of 400 to 800 psig, temperature ranging from about 1000 .degree. to about 1500.degree. F., and the weight percent water vapor in the reaction being from about 10 to about 40 Wt % of the alkylated phenol feedstock.
Claims11
A process for thermal dealkylation of alkylated phenols to form a phenol product comprising mixing a feed solution comprising at least one alkylated phenol with hydrogen and reacting the mixture in the presence of added water vapor at a temperature of from about 1000.degree. to about 1500.degree. F., the amount of water vapor used ranging from about 10 to about 40% by weight, based on the total weight of the feed solution.
In a process of thermal hydrodealkylation of alkylated phenols to form a phenal product comprising reacting a feed solution comprising a mixture of alkylated phenols with hydrogen at a temperature of from about 1000.degree. F. to about 1500.degree. F. and a total pressure of from about 400 to about 800 psig, the improvement comprising adding water vaper to the feed solution prior to the reaction with hydrogen the amount of water added being from about 10% to about 40% by weight of the total weight of the water-feed mixture.
Dependencies are inferred from the claim text.