Heat exchange – Intermediate fluent heat exchange material receiving and... – Solid fluent heat exchange material
Patent
1993-12-23
1995-09-26
Schwadron, Martin P.
Heat exchange
Intermediate fluent heat exchange material receiving and...
Solid fluent heat exchange material
422145, 422146, 502 44, B01J 3832
Patent
active
054527570
ABSTRACT:
A method of heating or cooling particulate material by indirect heat exchange of the particles with a heat exchange fluid in a heat exchanger is improved by the use of a gas vent that operates to pump catalyst into and out of a heat exchanger. A periodic build-up of fluidizing medium in a particle cycling zone intermittently causes catalyst to flow into out of a heat exchanger. The method and apparatus of this invention are particularly useful for the cooling of FCC catalyst and simplifies the addition of a cooler by allowing the use of small size catalyst transfer lines.
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Leo L. R.
McBride Thomas K.
Schwadron Martin P.
Tolomei John G.
UOP
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