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HomeHigh-capacity sorbents and optimisation of existing pollution control technology for mercury capture in industrial combustion systems (MERCURYCAP)
High-capacity sorbents and optimisation of existing pollution control technology for mercury capture in industrial combustion systems (MERCURYCAP)
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The MERCURYCAP project addressed the global problem of mercury emissions from coal-fired plants and the current position of conventional air pollution control devices, providing a partial solution for mercury capture. Two different routes were proposed and investigated for mercury capture and oxidation: (1) promising mercury sorbents, and (2) oxidation catalyst materials. Extensive injection testing programmes for mercury sorbents at pulverised fuel and fluidised bed combustion facilities were conducted to evaluate the performance of the developed materials. The HGC15-Lancaster and HGC03- Centre sorbents developed from gasification of mixed paper and plastic wastes were promising sorbents and could offer an alternative to commercial activated carbon sorbents. Moreover, HGC02-Berks sorbent, a char sorbent from clean wood gasification, showed very good performance in the full-scale tests. The preliminary evaluation of the potential commercialisation of the proposed sorbents suggested that the sorbent costs should be evaluated by analysing the sorbent consumption, capital and operating/maintenance costs and by-product management and disposal. Characterisation and evaluation of selective catalytic reduction (SCR) and manganese oxide modified SCR catalysts were undertaken to understand the effect of the addition of a mercury oxidation component on the catalyst and their performance for mercury oxidation/adsorption. Manganese-impregnated samples presented higher mercury adsorption than their undoped precursors and enhanced mercury adsorption of SCR catalysts. Commercial SCR catalysts coated with different active metals were produced and their performance tested in a pilot-scale unit. The optimal temperature for a high mercury conversion rate ranged between 300 and 350 °C and increasing SO2 concentrations slightly enhanced the mercury conversion rate.
- Published:
- Corporate author(s): Directorate-General for Research and Innovation (European Commission)
- Personal author(s): Kennedy, M ; Poulston, S ; Brechtel, K ; Diaz-Somoano, M ; Di Blasi, M ; Snape, C ; Foo, R ; Contreras-Rodríguez, M. L ; Martínez-Tarazona, R ; La Marca, C ; Cieplik, M ; Bahillo-Ruiz, A ; Diaz, L ; Pels, J ; Lopez-Anton, M ; Rallo, M ; Maroto-Valer, M
- Themes: Mechanical engineering , Industrial research and development
- Subject: anti-pollution device , coal processing , combustion gases , mercury , power plant , research report
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| ISSN 1831-9424 | ISBN 978-92-79-24829-0 | DOI 10.2777/92449 | Catalogue number KI-NA-25318-EN-N |
- Released on EU Publications:
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