Appeal No. 96-0037
Application 08/237,224
The appellants' invention is directed to a process for
separating fluidized cracking catalyst solids from hydrocarbon
vapors. The subject matter before us on appeal is illustrated by
reference to claim 15, which reads as follows:
15. A process for separating fluidized cracking catalyst
solids from hydrocarbon vapors comprising:
(a) feeding a mixture of fluidized cracking catalyst solids
and hydrocarbon vapors from a riser reactor into a separator
having at least one semi-circular separating area;
(b) deflecting the mixture off of a deflecting means in the
separator into said at least one semi-circular separating area;
(c) separating said mixture by inertial separation in said
at least one semi-circular separating area into a hydrocarbon
vapor product stream and a fluidized cracking catalyst stream;
(d) withdrawing said hydrocarbon vapor product stream from
said at least one semi-circular separating area through a
horizontally upwardly disposed opening on the side of a
horizontally disposed gas outlet which extends through said at
least one separating area and parallel to said deflector in said
at least one semi-circular separating area; and
(e) withdrawing the fluidized cracking catalyst from said
at least one semi-circular separating area.
THE REFERENCE
The sole reference relied upon by the examiner to support
the final rejection is:
Barnes 4,666,674 May 19, 1987
2
Page: Previous 1 2 3 4 5 6 7 8 Next
Last modified: November 3, 2007