초록 ▼

A cyclone and process for fluidized catalytic cracking of heavy oils is disclosed. Gas and entrained solids are added tangentially around a vapor outlet tube in a cylindrical tube cyclone body. Solids and some gas is withdrawn via a plurality of openings radially and longitudinally distributed in th

A cyclone and process for fluidized catalytic cracking of heavy oils is disclosed. Gas and entrained solids are added tangentially around a vapor outlet tube in a cylindrical tube cyclone body. Solids and some gas is withdrawn via a plurality of openings radially and longitudinally distributed in the cylindrical sidewall of the cyclone body. Distributed withdrawal replaces or reduces conventional underflow of solids from an end of cyclone outlet and reduces solids reentrainment. 0-5 micron particle removal is enhanced by reducing eddy formation and particle bouncing near the cyclone sidewall. The device may be used as an FCC regenerator third stage separator.

대표청구항 ▼

[ We claim:] [1.] A cyclone separator comprising:a cylindrical cyclone body having a length, a cylindrical axis and a wall having an inner surface and an outer surface;a tangential vapor inlet connective with an inlet end of said cyclone body for a stream of vapor and entrained solids;a cylindrical

[ We claim:] [1.] A cyclone separator comprising:a cylindrical cyclone body having a length, a cylindrical axis and a wall having an inner surface and an outer surface;a tangential vapor inlet connective with an inlet end of said cyclone body for a stream of vapor and entrained solids;a cylindrical vapor outlet tube within said inlet end of said cylindrical cyclone body for withdrawal of gas with a reduced entrained solids content, said outlet tube having a cylindrical axis aligned with said cylindrical axis of said cyclone body;a plurality of radially and longitudinally distributed solids outlets for removing most of said entrained solids and a minor amount of gas, comprising at least two sets of slanted openings distributed around the cyclone body.