WO2023186965 - A PROCESS FOR CATALYTIC FILTRATION OF SULFUR-CONTAINING GASES USING SELECTIVE CATALYTIC REDUCTION
National phase entry:
Publication Number
WO/2023/186965
Publication Date
05.10.2023
International Application No.
PCT/EP2023/058109
International Filing Date
29.03.2023
Title **
[English]
A PROCESS FOR CATALYTIC FILTRATION OF SULFUR-CONTAINING GASES USING SELECTIVE CATALYTIC REDUCTION
[French]
PROCÉDÉ DE FILTRATION CATALYTIQUE DE GAZ CONTENANT DU SOUFRE AU MOYEN D'UNE RÉDUCTION CATALYTIQUE SÉLECTIVE
Applicants **
TOPSOE A/S
Haldor Topsøes Allé 1
2800 Kgs. Lyngby, DK
Inventors
JAKOBSSON, Niklas Bengt
Hästskovägen 1
26876 Kågeröd, SE
MÜNSTER-SWENDSEN, Janus Emil
Egevangsvej 9
3060 Espergærde, DK
Priority Data
PA202200306
01.04.2022
DK
Application details
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International Searching Authority |
EPO
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 961 | |
| EPO | Filing, Examination | 4575 | |
| Japan | Filing | 587 | |
| South Korea | Filing | 574 | |
| USA | Filing, Examination | 2710 |
Total: 9407 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
In a process for catalytic filtration of sulfur-containing gases using a selective catalytic reduction (SCR) bag filter, wherein the SCR bag filter is operated at a temperature below the dew point of ammonium bisulfate, the catalyst is periodically regenerated using ozone injection. In this way, ammonium bisulfate is effectively removed from the pore structure of the catalyst.[French]
Dans un procédé de filtration catalytique de gaz contenant du soufre au moyen d'un filtre à poches à réduction catalytique sélective (SCR), le filtre à poches SCR étant actionné à une température inférieure au point de rosée du bisulfate d'ammonium, le catalyseur étant périodiquement régénéré au moyen d'une injection d'ozone. De cette manière, le bisulfate d'ammonium est efficacement éliminé de la structure poreuse du catalyseur.