Preparation of acrylonitrile

  • US 4,801,731 A
  • Filed: 12/14/1987
  • Issued: 01/31/1989
  • Est. Priority Date: 12/14/1987
  • Status: Expired due to Fees
First Claim
Patent Images

1. In a process for the preparation of acrylonitrile by the reaction of propylene, ammonia and an oxygen containing gas in a fluidized catalyst bed, the improvement which comprises, feeding a mixture of propylene and ammonia to the fluidized catalyst bed in which the catalyst is finely divided, in a plurality of downwardly directed perpendicular streams, and feeding the oxygen containing gas to the fluidized catalyst bed in a plurality of upwardly directed perpendicular streams, and each stream of the mixture of propylene and ammonia is directly aligned with the stream of the oxygen under conditions such that there is complete mixing of the gas streams prior to the gases having significant contact with the catalyst, the number of streams of oxygen containing gas being equal to the number of streams of the mixture of propylene and ammonia and in which the source of each oxygen containing gas stream is 1/2 inch to 36 inches from the source of the aligned gas stream of the mixture of propylene and ammonia.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×