Catalyst – solid sorbent – or support therefor: product or process – Control responsive to sensed condition
Patent
1982-08-30
1984-03-27
Konopka, P. E.
Catalyst, solid sorbent, or support therefor: product or process
Control responsive to sensed condition
34 57A, 62 57, 16510416, 208DIG1, 208164, 364500, 422144, 502 41, B01J 2938, C10G 1118, F28D 1300, G06G 758
Patent
active
044395337
ABSTRACT:
A process and associated apparatus for the cooling of hot fluidized solid particles. The particles flow from a first dense phase fluidized bed into the shell side of a vertically oriented shell and tube heat exchanger where cooling occurs via indirect heat exchange with a cooling medium circulating in the tubes. The extent of cooling is controlled by the varying of the heat transfer coefficient between the tubes and particles in the heat exchanger which are maintained as a second dense phase fluidized bed. The coefficient is varied by varying the quantity of fluidizing gas to the fluidized bed in the heat exchanger. The particles flow freely to and from the first and second dense phase fluidized beds through which the particles recirculate and are backmixed. The process has particular applicability to a combustive regeneration process and most particular applicability to the FCC process.
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"Fluidized-Bed Heat Transfer: A Generalized Dense-Phase Correlation"; A.I. Ch.E. Journal; Dec. 1956; vol. 2, No. 4; pp. 482-488.
Lomas David A.
Thompson Gregory J.
Hoatson Jr. James R.
Konopka P. E.
Morris Louis A.
Page II William H.
UOP Inc.
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