EP 0874679 A4 20010221 - METHOD AND APPARATUS FOR REMOVAL OF HAZARDOUS GASES FROM ENCLOSED STRUCTURES

Title (en)

METHOD AND APPARATUS FOR REMOVAL OF HAZARDOUS GASES FROM ENCLOSED STRUCTURES

Title (de)

METHODE UND APPARAT ZUR ENTFERNUNG VON SCHÄDLICHEN GASEN AUS GESCHLOSSENEN BEHÄLTERN.

Title (fr)

PROCEDE ET APPAREIL D'EXTRACTION DE GAZ DANGEREUX DE STRUCTURES CLOSES

Publication

EP 0874679 A4 20010221 (EN)

Application

EP 97904741 A 19970103

Priority

US 9700280 W 19970103
US 58461996 A 19960111
US 58489196 A 19960111

Abstract (en)

[origin: WO9725125A1] A method for removing hazardous gases having water solubility from storage tanks (22) by scrubbing steps is described together with a method for removing ethylene dichloride or hydrogen sulfide contamination from soil (66) is disclosed. A scrubbing tower (30) mounted on a mobile frame (70) that is movable between a horizontal transport position (A) and a vertical operating position (B) is also described. A means is provided for distributing gas upwardly (34) through the scrubbing tower (30), and water downwardly (38) through the scrubbing tower (30), when the tower (30) is in the vertical operating position (B). The apparatus (20) also includes a blower (26) and a pump (58) mounted on the mobile frame (70), the blower (26) being connectable with a source of hazardous gases enclosed within a storage vessel (22), and the pump (58) being connectable with a source of water (52). The apparatus (20) is especially beneficial in removing water soluble hazardous compounds, such as ethylene dichloride and hydrogen sulfide, from gaseous atmospheres.

IPC 1-7

B01D 47/14; B01D 53/14; B09C 1/00

IPC 8 full level

B01D 47/00 (2006.01); B01D 47/06 (2006.01); B01D 53/14 (2006.01)

CPC (source: EP)

B01D 53/1487 (2013.01)

Citation (search report)

[A] US 5361514 A 19941108 - LAHODA EDWARD J [US], et al
[A] DE 4135905 A1 19930506
[A] DE 3147892 A1 19830616 - BAYER AG [DE]
See references of WO 9725125A1

Designated contracting state (EPC)

AT BE DE ES FR GB IT NL PT

DOCDB simple family (publication)

WO 9725125 A1 19970717; CA 2226682 A1 19970717; EP 0874679 A1 19981104; EP 0874679 A4 20010221; JP 2002514969 A 20020521

DOCDB simple family (application)

US 9700280 W 19970103; CA 2226682 A 19970103; EP 97904741 A 19970103; JP 52537497 A 19970103