EP 4146373 A1 20230315 - A METHOD OF SCAVENGING ALKALI FROM FLUE GAS
Title (en)
A METHOD OF SCAVENGING ALKALI FROM FLUE GAS
Title (de)
VERFAHREN ZUR ALKALIENTFERNUNG AUS RAUCHGAS
Title (fr)
PROCÉDÉ DE PIÉGEAGE D'ALCALI À PARTIR DE GAZ DE FUMÉE
Publication
Application
Priority
- NL 2025539 A 20200508
- NL 2021050289 W 20210504
Abstract (en)
[origin: WO2021225436A1] A method of scavenging alkali from flue gas comprises the steps of - introducing oxygen-comprising gas and a solid fuel comprising biomass into a combustion chamber to incinerate said solid fuel resulting in a flue gas comprising alkali, and - introducing an additive material comprising i) clay and ii) a calcium compound into the flue gas. To reduce the operational costs, the additive is added as a powder which comprises both meta-kaolin as the clay and calcium oxide as the calcium compound. An additive powder particle is an aggregate of micro-particles and a micro-particle of the additive powder particle is a micro-aggregate comprising both the meta-kaolin and the calcium oxide.
IPC 8 full level
B01D 53/10 (2006.01); B01D 53/38 (2006.01); B01D 53/68 (2006.01); B01D 53/83 (2006.01); C10L 10/04 (2006.01); F23J 15/00 (2006.01)
CPC (source: EP)
B01D 53/10 (2013.01); B01D 53/38 (2013.01); B01D 53/68 (2013.01); B01D 53/83 (2013.01); F23G 7/10 (2013.01); F23J 15/003 (2013.01); B01D 2251/404 (2013.01); B01D 2251/602 (2013.01); B01D 2251/606 (2013.01); B01D 2253/11 (2013.01); B01D 2253/304 (2013.01); B01D 2257/204 (2013.01); B01D 2258/0283 (2013.01); B01D 2258/0291 (2013.01); F23G 2209/26 (2013.01)
Citation (search report)
See references of WO 2021225436A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021225436 A1 20211111; EP 4146373 A1 20230315; NL 2025539 B1 20211123
DOCDB simple family (application)
NL 2021050289 W 20210504; EP 21732997 A 20210504; NL 2025539 A 20200508