Vikram Singh

US Patent:

20140061024, Mar 6, 2014

Filed:

Jul 25, 2013

Appl. No.:

13/950870

Inventors:

Vikram SINGH - Fairfax VA, US
Brian D. ALBERT - Fairfax VA, US
Berne K. STOBER - Esmont VA, US

Assignee:

EXXONMOBIL RESEARCH AND ENGINEERING COMPANY - Annandale NJ

International Classification:

B01D 3/00
B01D 3/06

US Classification:

203 39, 202262, 202176

Abstract:

A feed device for a distillation tower or column with a flash zone, wash zone and stripping zone has an annular, open-bottomed channel located around the periphery of the feed zone of the tower with an inner wall spaced from the inner curved wall of the tower and a top covering the channel to confer a generally inverted-U shape to the cross section of the channel. One or more tangential feed inlets are provided to admit a heated, mixed phase feed to the tower and direct the feed into and along the channel. One or more vapor scoops are provided for each feed inlet with the scoop(s) located on the inner wall of the channel, each at a sufficient distance along the channel from the inlet to permit cyclonic separation of vapor and liquid to take place before the vapor in the feed from the inlet enters the scoop(s) and passes through a vapor exit port into the central core of the tower. The tower is preferably used with a radial louvre baffle at the top of the stripping zone.

US Patent:

20150128543, May 14, 2015

Filed:

Jul 3, 2014

Appl. No.:

14/323231

Inventors:

Robert Piszczek - Spring TX, US
Todd P. Marut - Madison NJ, US
Brian D. Albert - Fairfax VA, US
Vikram Singh - Fairfax VA, US
Simon Y. Yeung - San Francisco CA, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

B01D 45/08

US Classification:

55440

Abstract:

Vane type mist eliminator segments are arranged in a plurality of tiers at separate vertically spaced locations in a tower, typically of the upright, cylindrical type, with the eliminator at each tier covering only a portion of the cross section of the tower. The eliminator segment(s) in each tier are laterally displaced in the tower from the adjacent vertically spaced eliminator segments to form a staggered configuration for the segments. Each mist eliminator preferably extends over 50-70% of the cross-sectional area of the tower to leave an open flow passage in the tier; the staggering of the segments and the associated flow passages defines an upward tortuous or zig-zag open flow path for vapors ascending the tower through the open flow passages when the eliminator segment(s) become fouled in use.