METHOD OF REACTIVATION OF THE ALUMINA CATALYZER DEHYDRATION OF METHYLPHENYLCARBINOL Russian patent published in 2006 - IPC B01J21/20 B01J21/04 

FIELD: petrochemical industry; methods of reactivation of the alumina catalyzer of dehydration of methylphenylcarbinol (MPhC).

SUBSTANCE: the invention is pertaining to the field of petrochemical industry, in particular , to the method of reactivation of the catalyzer of the vapor-phase dehydration of methylphenylcarbinol. The offered method of the reactivation of the catalyzer of dehydration of methylphenylcarbinol is realized with the help of the carbon-containing compounds and coke burning-off by the air oxygen in the flow of the water steam and the subsequent wash by the acid water solution capable to give back hydrogen in the form of the proton. The volumetric ratio of the acid solution to the catalyzer at the wash is kept equal to 1÷10:1. In the process of the catalyzer wash the water solution of the acid having the temperature of 5-90°C is used. The technical result of the invention is reduction of the water consumption at realization of the reactivation of the alumina catalyzer of dehydration of methylphenylcarbinol.

EFFECT: the invention ensures reduction of the water consumption at realization of the reactivation of the alumina catalyzer of dehydration of methylphenylcarbinol.

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