Next Article in Journal
Production of Bio-Hydrogenated Diesel by Hydrotreatment of High-Acid-Value Waste Cooking Oil over Ruthenium Catalyst Supported on Al-Polyoxocation-Pillared Montmorillonite
Previous Article in Journal
Influence of Gold on Ce-Zr-Co Fluorite-Type Mixed Oxide Catalysts for Ethanol Steam Reforming
Previous Article in Special Issue
Hydrogenation of Anthracene in Supercritical Carbon Dioxide Solvent Using Ni Supported on Hβ-Zeolite Catalyst
Article Menu

Export Article

Open AccessReview

Oxidation Catalysts for Elemental Mercury in Flue Gases—A Review

Department of Chemical Engineering, Faculty of Chemical Engineering and Environmental Protection, Gheorghe Asachi Technical University of Iasi, 73 Prof. D. Mangeron Street, Iasi 700050, Romania
Environmental Protection Technology, Otto-von-Guericke University Magdeburg, c/o Engineering Sciences Centre, Martin-Luther University Halle-Wittenberg, Halle (Saale) D-06099, Germany
Authors to whom correspondence should be addressed.
Catalysts 2012, 2(1), 139-170;
Received: 29 December 2011 / Revised: 18 January 2012 / Accepted: 1 February 2012 / Published: 13 February 2012
(This article belongs to the Special Issue Feature Papers)
PDF [514 KB, uploaded 16 February 2012]


The removal of mercury from flue gases in scrubbers is greatly facilitated if the mercury is present as water-soluble oxidized species. Therefore, increased mercury oxidation upstream of scrubber devices will improve overall mercury removal. For this purpose heterogeneous catalysts have recently attracted a great deal of interest. Selective catalytic reduction (SCR), noble metal and transition metal oxide based catalysts have been investigated at both the laboratory and plant scale with this objective. A review article published in 2006 covers the progress in the elemental mercury (Hgel) catalytic oxidation area. This paper brings the review in this area up to date. To this end, 110 papers including several reports and patents are reviewed. For each type of catalyst the possible mechanisms as well as the effect of flue gas components on activity and stability are examined. Advantages and main problems are analyzed. The possible future directions of catalyst development in this environmental research area are outlined. View Full-Text
Keywords: mercury oxidation; catalysts; Hgel oxidation mechanisms; SCR; noble metal; transition metal oxide mercury oxidation; catalysts; Hgel oxidation mechanisms; SCR; noble metal; transition metal oxide

Figure 1

This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Share & Cite This Article

MDPI and ACS Style

Dranga, B.-A.; Lazar, L.; Koeser, H. Oxidation Catalysts for Elemental Mercury in Flue Gases—A Review. Catalysts 2012, 2, 139-170.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Catalysts EISSN 2073-4344 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top