Method for removing mercury from flue gases of incineration plants

US10369519B2 · kind B2 · utility

Assignee

• RWE Power Aktiengesellschaft · DE

Inventors

• Peter Moser · Schlagturn, AT
• Knut Stahl · Hamm, DE

Key dates

• Filing date: May 30, 2016
• Grant date: Aug 6, 2019
• Expiry date: May 30, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2258/0283
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The invention relates to a process for removing mercury from flue gases from combustion plants, wherein the process comprises providing an adsorbent based on carbon, producing an aqueous suspension comprising the adsorbent, introducing the suspension into the flue gas stream from the combustion plants into the dry gas phase of the flue gas which is undersaturated with water vapor and loading the adsorbent with mercury over a predetermined reaction path, keeping the mercury-laden adsorbent out of the flue gas stream and landfilling or regenerating the mercury-laden adsorbent.