METHOD FOR ACTIVATING A CATALYST BASED ON GAMMA-ALUMINIUM OXIDE FOR PRODUCING STYRENE Russian patent published in 2021 - IPC B01J38/00 B01J21/04 B01J20/08 C07C1/24 C07C15/46

Abstract RU 2760678 C1

FIELD: catalysts.

SUBSTANCE: invention relates to the petrochemical and chemical industries and is intended for producing styrene by vapour-phase dehydration of methylphenylcarbinol. Proposed is a method for activating a catalyst based on gamma-aluminium oxide for producing styrene by means of vapour-phase dehydration of methylphenylcarbinol and a method for application thereof. The catalyst is activated by means of hydrothermal treatment at a temperature of 520 to 600°C for 4 to 20 hours in the presence of vapour.

EFFECT: increase in the inter-regeneration period of operation of the catalyst, increase in the service cycle of the catalyst with increased selectivity of the process.

2 cl, 1 tbl, 6 ex

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RU 2 760 678 C1

Authors

Dates

2021-11-29—Published

2021-02-04—Filed