Process and apparatus for non-mechanical flow control of catalys

Details Process and apparatus for non-mechanical flow control of catalys Process and apparatus for non-mechanical flow control of catalys

1990-04-27

1994-12-27

Myers, Helane

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208150, 208161, 208164, C10G 932

Patent

active

053762614

ABSTRACT:
A process and apparatus for controlling the flow of FCC catalyst around a catalyst regenerator, using a non-mechanical valve, is disclosed. The preferred non-mechanical valve provides a de-aeration section, addition of fluidizing gas, a "U" trap seal, and venturi gas outlet on the top of the trap, for reliable flow control of non-uniform settling particles such as FCC catalyst. Control of the flow of a fluidizing gas to such a valve changes the flow properties of the FCC catalyst and permits flow control without resort to plug valves, or other internal mechanical valves, which are difficult to use in the harsh environment experienced within FCC regenerators.

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Oil & Gas Journal FCC Report p. B33 Jan. 8, 1990.

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