EP 1140327 A1 20011010 - LIQUID UREA EXHAUST GAS TREATMENT ADDITIVE
Title (en)
LIQUID UREA EXHAUST GAS TREATMENT ADDITIVE
Title (de)
FLÜSSIGER HARNSTOFFZUSATZ ZUR ABGASBEHANDLUNG
Title (fr)
ADDITIF DE TRAITEMENT DE GAZ D'ECHAPPEMENT LIQUIDE A BASE D'UREE
Publication
Application
Priority
- US 9927819 W 19991123
- US 10942898 P 19981123
Abstract (en)
[origin: WO0030733A1] Methods for the treatment of combustion effluent containing nitrogen oxides are provided. According to these methods, the combustion effluent is treated with a liquid treatment additive composition comprising urea, water and an oxygenated organic compound, in the presence of a catalyst. The treatment additive compositions of the present invention have lower freezing points than water/urea solutions, which allows use and storage of the treatment additive at temperatures below 10 DEG F (-12 DEG C), if necessary.
IPC 1-7
IPC 8 full level
F01N 3/08 (2006.01); B01D 53/56 (2006.01); B01D 53/86 (2006.01); B01D 53/94 (2006.01); B01J 12/00 (2006.01); F01N 3/20 (2006.01)
CPC (source: EP)
B01D 53/56 (2013.01); B01D 53/9409 (2013.01); B01J 12/007 (2013.01); F01N 3/2066 (2013.01); F01N 2610/02 (2013.01); F23J 2215/10 (2013.01); F23J 2219/10 (2013.01); Y02A 50/20 (2017.12); Y02T 10/12 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0030733 A1 20000602; AU 2156000 A 20000613; EP 1140327 A1 20011010; EP 1140327 A4 20011010; JP 2002530575 A 20020917
DOCDB simple family (application)
US 9927819 W 19991123; AU 2156000 A 19991123; EP 99965882 A 19991123; JP 2000583610 A 19991123