Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Patent
1990-11-15
1992-10-27
Morris, Theodore
Mineral oils: processes and products
Chemical conversion of hydrocarbons
Cracking
208152, 208155, 208161, 422144, 422145, 422147, C10G 1100
Patent
active
051586690
ABSTRACT:
A method and apparatus for an FCC process uses dissipator plates at the outlet of a disengaging vessel to provide a quick separation of catalyst from produce vapors and to prevent reentrainment of catalyst into the disengaging vessel. The process and apparatus use a riser for the conversion of an FCC feedstock and direct the effluent from the riser directly into a disengaging vessel to separate catalyst from the product vapors. Catalyst is directed downwardly out of the outlet of the disengaging vessel and through a series of dissipator plates that eliminate the tangential velocity that would be otherwise introduced by the vortex and would lead to reentrainment of catalyst. A stripping vessel is located immediately below the disengaging vessel outlet to receive catalyst as it leaves the dissipator plates.
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Diemler William C.
McBride Thomas K.
Morris Theodore
Tolomei John G.
UOP
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