Ammoxidation process with external catalyst regeneration zone

Details Ammoxidation process with external catalyst regeneration zone Ammoxidation process with external catalyst regeneration zone

1980-07-22

1981-08-18

Torrence, Dolph H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

252416, 422144, C07C12014, B01J 3712, F27B 1508

Patent

active

042845831

ABSTRACT:
A process for the ammoxidation of alkylaromatic hydrocarbons in a fluidized bed reactor is disclosed. A relatively small stream of catalyst is removed from an unsegregated single catalyst bed within the reaction zone and passed into a regeneration zone operated at a higher temperature. Metals on the catalyst are oxidized by contact in the regeneration zone with a preheated oxygen containing gas stream, which is then passed into the reaction zone. The residual oxygen in this gas stream may supply 15 percent or more of the oxygen consumed in the reaction zone. The continuous regeneration maintains the metals on the catalyst in a high oxidation state.

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