EP 1682249 A1 20060726 - METHOD AND INSTALLATION FOR PURIFYING GAS
Title (en)
METHOD AND INSTALLATION FOR PURIFYING GAS
Title (de)
VERFAHREN UND ANLAGE ZUR GASREINIGUNG
Title (fr)
PROCEDE ET INSTALLATION POUR LA PURIFICATION DE GAZ
Publication
Application
Priority
- EP 2004010972 W 20041001
- DE 10352638 A 20031111
Abstract (en)
[origin: WO2005051522A1] The invention relates to a method and installation for separating sulfur dioxide out of waste gas, whereby the waste gas is subjected to the action of salt water in an absorption tower, and the salt water loaded with sulfur compounds is drawn out from the liquid bottom of the absorption tower and is subjected to the action of fresh salt water. In order to eliminate the need for very expensive and large secondary reaction basins as required by the prior art, the invention provides that the liquid containing bisulfates is drawn out from the liquid bottom of the absorption tower and, for the purpose of forming sulfates and adjusting the pH (neutralization), is subjected to the action of fresh salt water in a line. The invention is based on the finding that the formation of sulfates and the adjustment of the pH are completed after a reaction time of 1 to 2 minutes. This makes it possible to eliminate the need for a large and expensive secondary reaction basin.
IPC 8 full level
B01D 53/50 (2006.01)
CPC (source: EP KR US)
B01D 53/14 (2013.01 - KR); B01D 53/50 (2013.01 - KR); B01D 53/507 (2013.01 - EP US)
Citation (search report)
See references of WO 2005051522A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005051522 A1 20050609; CA 2512779 A1 20050609; CN 100336579 C 20070912; CN 1744938 A 20060308; DE 10352638 A1 20050616; DE 10352638 B4 20071011; EP 1682249 A1 20060726; KR 20060115572 A 20061109; NO 20062064 L 20060711; US 2006251559 A1 20061109; US 7288235 B2 20071030; ZA 200505344 B 20060426
DOCDB simple family (application)
EP 2004010972 W 20041001; CA 2512779 A 20041001; CN 200480002983 A 20041001; DE 10352638 A 20031111; EP 04790082 A 20041001; KR 20057013143 A 20050715; NO 20062064 A 20060508; US 54397306 A 20060711; ZA 200505344 A 20050701