B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 3/02 (2006.01) B01F 3/06 (2006.01) B01F 5/04 (2006.01) B01J 4/00 (2006.01) B01J 8/18 (2006.01) B01J 8/24 (2006.01) B01J 19/00 (2006.01) C07C 253/26 (2006.01)
Patent
CA 2184020
A system provides an oxygen-bearing gas and a gaseous reactant stream to a fluidized bed reactor. A sparger causes an entraining of the oxygen bearing gas into the reactant gas stream. A feed line couples the sparger to the reactor's fluidized bed and introduces the reactant gas stream and entrained oxygen-bearing gas directly into contact with the fluidized bed. A controller controls both the amount of oxygen-bearing gas and the gaseous reactant so that, at the point of feed injection, the fluidized bed catalyst does not experience an oxygen deficiency. To assure safety, the reactant content of the combined feed and oxygen stream is maintained above an upper flammability limit, preferably with a safety margin of at least 25%. In one embodiment, the system enables the production of acrylonitriles from a feed stream comprising ammonia, propylene and oxygen.
Bergman Thomas John Jr.
Wagner Matthew Lincoln
Praxair Technology Inc.
Sim & Mcburney
LandOfFree
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