Vapor/liquid contacting cyclone with secondary vanes

Details Vapor/liquid contacting cyclone with secondary vanes Vapor/liquid contacting cyclone with secondary vanes

2005-04-12

2005-04-12

Bushey, Scott (Department: 1724)

Gas and liquid contact apparatus

Contact devices

Rotating gases

C261S097000, C261S114300, C096S306000, C096S360000

Reexamination Certificate

active

06877725

ABSTRACT:
This invention is directed to a cyclonic vapor/liquid contacting device and distillation or related mass transfer or heat transfer processes employing its use, such as fluid catalytic cracking. Liquid feed is introduced near the floor of the cyclone via downcomer or plenum. Vapor enters through sieve holes in the bottom of the cyclonic device. Near the floor are angled tabs or vanes that impart a spin to the vapor rising up through the floor. The tabs or vanes mix the liquid and vapor. The liquid is then thrown toward the cyclone wall, where it exits through slots in the wall. A second set of tabs or vanes, located about in the middle of the cyclone, imparts additional spin to the vapor and entrained liquid rising through the cyclone. This improves liquid collection by the cyclone, especially in cases where a heavy liquid load dampens the spin action of the vapor in the base of the cyclone. In another embodiment, there is a non-spinning zone at the floor of the cyclone barrel which permits improved heat transfer between the liquid and vapor. If a non-spinning zone is used, the two sets of vanes or tabs are located at higher elevations within the barrel.

REFERENCES:
patent: 4752307 (1988-06-01), Asmus et al.
patent: 4755198 (1988-07-01), Darton
patent: 4838906 (1989-06-01), Kiselev
patent: 4908051 (1990-03-01), Kiselev
patent: 5626799 (1997-05-01), Sheinman
patent: 5885488 (1999-03-01), Konijn
patent: 6105941 (2000-08-01), Buchanan et al.
patent: 6221133 (2001-04-01), Moore
patent: 6227524 (2001-05-01), Kiselev et al.

Affiliated with

Also associated with

Rating

Vapor/liquid contacting cyclone with secondary vanes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vapor/liquid contacting cyclone with secondary vanes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vapor/liquid contacting cyclone with secondary vanes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3379988