Organic compounds -- part of the class 532-570 series – Organic compounds – Nitriles
Patent
1998-03-09
2000-12-05
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Nitriles
C07C25324, C07C25326, C07C25318
Patent
active
061569216
ABSTRACT:
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.
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Bergman, Jr. Thomas John
Wagner Matthew Lincoln
Higel Floyd D.
Lau Bernard
Praxair Technology Inc.
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