EP 1761325 A1 20070314 - METHOD AND APPARATUS UTILISING HYDROGEN PEROXYDE TO REDUCE SOx, NOx AND HEAVY METAL EMISSIONS
Title (en)
METHOD AND APPARATUS UTILISING HYDROGEN PEROXYDE TO REDUCE SOx, NOx AND HEAVY METAL EMISSIONS
Title (de)
VERFAHREN UND VORRICHTUNG UNTER VERWENDUNG VON WASSERSTOFFPEROXID ZUR VERRINGERUNG VON SOx-, NOx- UND SCHWERMETALLEMISSIONEN
Title (fr)
PROCÉDÉ ET APPAREIL UTILISANT DU PEROXYDE D'HYDROGÈNE POUR RÉDUIRE LES ÉMISSIONS DE SOx, NOx ET DE MÉTAUX LOURDS
Publication
Application
Priority
- US 2005011864 W 20050408
- US 84541804 A 20040511
- US 2004027778 W 20040826
- US 4029405 A 20050114
Abstract (en)
[origin: WO2005113116A1] Methods and apparatus utilizing hydrogen peroxide are useful to reduce SOx and mercury (or other heavy metal) emissions from combustion flue gas streams. The methods and apparatus may further be modified to reduce NOx emissions. Continuous concentration of hydrogen peroxide to levels approaching or exceeding propellant-grade hydrogen peroxide facilitates increased system efficiency. In this manner, combustion flue gas streams can be treated for the removal of SOx and heavy metals, while isolating useful by-products streams of sulfuric acid as well as solids for the recovery of the heavy metals. Where removal of NOx emissions is included, nitric acid may also be isolated for use in fertilizer or other industrial applications.
IPC 8 full level
B01D 53/60 (2006.01); B01D 53/50 (2006.01); B01D 53/56 (2006.01); B01D 53/64 (2006.01); B01D 53/75 (2006.01); C01B 17/05 (2006.01); C01B 17/50 (2006.01); C01B 21/40 (2006.01)
CPC (source: EP)
B01D 53/507 (2013.01); B01D 53/56 (2013.01); B01D 53/64 (2013.01); B01D 53/75 (2013.01); B01D 2251/106 (2013.01)
Citation (search report)
See references of WO 2005113116A1
Citation (examination)
US 5397549 A 19950314 - NEWMAN DAVE B [CA]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005113116 A1 20051201; AU 2005245336 A1 20051201; CA 2565750 A1 20051201; EP 1761325 A1 20070314; MX PA06012988 A 20061220
DOCDB simple family (application)
US 2005011864 W 20050408; AU 2005245336 A 20050408; CA 2565750 A 20050408; EP 05734840 A 20050408; MX PA06012988 A 20050408