Title:
STEPPED DOWNCOMER APPARTATUS AND VAPOR-LIQUID CONTACT APPARATUS WITH SAME
Document Type and Number:
WIPO Patent Application WO2002100505
Kind Code:
A3
Abstract:
A stepped downcomer apparatus for use in a vapor-liquid contact apparatus having an intermediate level step platform with a preferred tri-edge peripheral edge and corresponding step panels extending down from that edge to form a sealing step panel wall. As a preferred support device, extensions extend in chordal fashion out from the interior vertical edge of the opposite side step wall panels and either directly or indirectly by way of support bars into a supporting relationship with a tower of the vapor-liquid contact apparatus. A main panel extends up from the interior edge of the platform and up to the above positioned tray. A weir may extend above the above positioned tray that is an extension of the main panel. This main panel is attached to the support bars and supports the step platform and walls and extensions either alone or with added support members. A tray support ledge extends inwardly from the downcomer to provide support to the upper tray. The liquid-vapor mix contacts the step platform after passing over the weir, and off from which fluid travels both along the central axis of flow and obliquely off the opposite side panels. At opposite ends of the weir, the liquid flows directly into contact with the inlet region of the lower tray, by-passing the platform.
Inventors:
PILLING MARK W (US)
NUTTER DALE E (US)
CAMPBELL CHRISTINA J (US)
NUTTER DALE E (US)
CAMPBELL CHRISTINA J (US)
Application Number:
PCT/US2002/017485
Publication Date:
April 10, 2003
Filing Date:
June 04, 2002
Export Citation:
Assignee:
SULZER CHEMTECH USA INC (US)
PILLING MARK W (US)
NUTTER DALE E (US)
CAMPBELL CHRISTINA J (US)
PILLING MARK W (US)
NUTTER DALE E (US)
CAMPBELL CHRISTINA J (US)
International Classes:
B01D3/20; B01D3/18; B01D3/22; (IPC1-7): B01D3/22
Domestic Patent References:
| WO1998051390A1 | 1998-11-19 | |||
| WO2001024901A1 | 2001-04-12 |
Foreign References:
| EP0599454A1 | 1994-06-01 | |||
| US5453222A | 1995-09-26 | |||
| US5951827A | 1999-09-14 | |||
| US6003847A | 1999-12-21 | |||
| US4101610A | 1978-07-18 |
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