EP 3700660 A1 20200902 - METHOD FOR REMOVAL OF MERCURY FROM GASEOUS EFFLUENTS
Title (en)
METHOD FOR REMOVAL OF MERCURY FROM GASEOUS EFFLUENTS
Title (de)
VERFAHREN ZUR ENTFERNUNG VON QUECKSILBER AUS ABGASEN
Title (fr)
PROCÉDÉ DE DÉMERCURISATION D'EFFLUENTS GAZEUX
Publication
Application
Priority
- FR 1760086 A 20171026
- EP 2018079271 W 20181025
Abstract (en)
[origin: WO2019081635A1] In order to effectively, inexpensively and easily remove mercury from gaseous effluents, the invention proposes a method for removal of mercury, wherein a reagent for capturing mercury (3), which is made up of a solution of a bicarbonate and a sulfide, is injected in liquid form into a gaseous stream (2) having a temperature greater than 140°C, preferably between 170ºC and 220ºC, so that dry grains, resulting from evaporation of the water of the solution followed by thermal decomposition of the bicarbonate of the solution into carbonate, have a large specific surface area on which the sulfide initially present in the solution is distributed in order to bond with and thus capture the mercury present in the gaseous stream.
IPC 8 full level
B01D 53/64 (2006.01)
CPC (source: EP)
B01D 53/64 (2013.01); B01D 2251/00 (2013.01); B01D 2251/304 (2013.01); B01D 2251/306 (2013.01); B01D 2251/404 (2013.01); B01D 2251/606 (2013.01); B01D 2257/2045 (2013.01); B01D 2257/302 (2013.01); B01D 2257/602 (2013.01); B01D 2258/0283 (2013.01)
Citation (search report)
See references of WO 2019081635A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019081635 A1 20190502; EP 3700660 A1 20200902; FR 3072887 A1 20190503; FR 3072887 B1 20220513
DOCDB simple family (application)
EP 2018079271 W 20181025; EP 18792939 A 20181025; FR 1760086 A 20171026