Fluid catalyst regeneration apparatus

Claim 1

An apparatus for regenerating a coke-contaminated, fluid catalyst which apparatus comprises in combination: (a) a vertically oriented combustion chamber; (b) a spent catalyst inlet conduit for gas and fluid catalyst connecting with the lower portion of said combustion chamber; (c) fluid catalyst collecting means disposed within an upper portion of said combustion chamber; (d) a first catalyst withdrawal conduit, connecting with said catalyst collecting means, for withdrawal of collected regenerated fluid catalysts from said combustion chamber; (e) a heat removal chamber located super adjacent to said combustion chamber and in communication therewith; (f) heat removal means disposed within said heat removal chamber; (g) a second catalyst withdrawal conduit connected at one end to said heat removal chamber for withdrawing regenerated fluid catalyst from said heat removal chamber; and (h) a mixing conduit connected at one end to said second withdrawal conduit and at the other end to said first withdrawal conduit, such that regenerated fluid catalyst from said heat removal chamber can pass into said first withdrawal conduit, and (i) a control system for said apparatus comprising means to sense the catalyst temperature in said first withdrawal conduit at a locus downstream of the locus where said mixing conduit connects to said first withdrawal conduit, temperature control means having an adjustable set point connecting with said temperature sensing means and developing an output signal, flow control means regulating the rate of flow of regenerated catalyst through said mixing conduit, and means for transmitting said output signal to said flow control means whereby the latter is adjusted responsive to said catalyst temperature.

Claim 2

An apparatus for regenerating a coke-contaminated, fluid catalyst which apparatus comprises in combination: (a) a vertically oriented combustion chamber; (b) a spent catalyst inlet conduit for gas and fluid catalyst connecting with the lower portion of said combustion chamber; (c) fluid catalyst collecting means disposed within an upper portion of said combustion chamber; (d) a first catalyst withdrawal conduit, connecting with said catalyst collecting means, for withdrawal of collected regenerated fluid catalysts from said combustion chamber; (e) a heat removal chamber located super adjacent to said combustion chamber and in communication therewith; (f) heat removal means disposed within said heat removal chamber; (g) a second catalyst withdrawal conduit connected at one end to said heat removal chamber for withdrawing regenerated fluid catalyst from said heat removal chamber; and (h) a mixing conduit connected at one end to said second withdrawal conduit and at the other end to said first withdrawal conduit, such that regenerated fluid catalyst from said heat removal chamber can pass into said first withdrawal conduit, and (i) a control system for said apparatus comprising means to sense the catalyst temperature in said first withdrawal conduit at a locus downstream of the locus where said mixing conduit connects to said first withdrawal conduit, temperature control means having an adjustable set point connecting with said temperature sensing means and developing an output signal, flow control means regulating the rate of flow of regenerated catalyst through said mixing conduit, and means for transmitting said output signal to said flow control means whereby the latter is adjusted responsive to said catalyst temperature.