Ammoxidation process with isolated catalyst regeneration zone

Details Ammoxidation process with isolated catalyst regeneration zone Ammoxidation process with isolated catalyst regeneration zone

1979-10-29

1981-01-20

Brust, Joseph Paul

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260464, C07C12014

Patent

active

042461928

ABSTRACT:
A process for the ammoxidation of olefinic 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.

REFERENCES:
patent: 3472892 (1969-10-01), Callahan et al.
patent: 3478082 (1969-11-01), Huibers
patent: 3639103 (1972-02-01), Sheely
patent: 3691224 (1972-09-01), Caporali et al.
patent: 3819679 (1974-06-01), Sheely
patent: 4052333 (1977-10-01), Lee
Pujado, et al., The Oil and Gas Journal, (1977), pp. 171-172.
Heath, Chemical Engineering, (1972), pp. 80-81.

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