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30.06.1977

Publications

Microscopy of Cement Clinker: Picture Atlas

Verein Deutscher Zementwerke, VDZ, Ed. Microscopy of Cement Clinker: Picture Atlas. Duesseldorf: Bet.-Verl., 1977

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30.06.2019

Publications

Influences of the oxyfuel cooling medium on mineralogy and microstructure of Portland cement clinker

17th EMABM, University of Toronto, Toronto, Canada, May 20-23, 2019 Hrsg. Proceedings of the 17th Euroseminar on Microscopy Applied to Building Materials, Toronto (Canada), 20. to 23. May 2019

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09.01.2017

Publications

Alite Decomposition vs. Alite Corrosion

École Polytechnique Fédérale de Lausanne, EPFL, Hrsg. 16th Euroseminar on Microscopy Applied to Building Materials : EMABM 2017 (Les Diablerets 14.-17.May 2017). Lausanne: École Polytechnique Fédérale de Lausanne, EPFL, 2017, S.23-26

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09.01.2015

Publications

Evaluation of portland cement clinker with optical microscopy - case studies III

Copuroglu, Oguzhan (Hrsg): Proceedings of the 15th Euroseminar on microscopy applied to building materials (Delft 17.-19.06.2015). Delft, 2015, S.33-37

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09.01.2012

Publications

Effects of alternative fuels and raw materials on clinker properties

International Cement Microscopy Association, ICMA (Hrsg): Proceedings of the 34th international conference on cement microscopy (Halle/Saale 01.-04.04.2012). ICMA, 2012

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09.01.2011

Publications

Evaluation of portland cement clinker with optical microscopy - case studies II

13th Euroseminar on Microscopy Applied to Building Materials (Ljubljana 14.-18.06.2011). Ljubljana: Slovenian National Building and Civil Engineering Institute, 2011, 7 S.

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09.01.2009

Publications

Evaluation of portland cement clinker with optical microscopy - case studies

12th Euroseminar on Microscopy Applied to Building Materials: Full Paper (Dortmund 15.-19.09.2009). Dortmund: TU Dortmund, 2009, 10 S.

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Background and goals of the research project

From a toxicological point of view, mercury is a very important element for humans and the environment, and in recent years it has increasingly come into the focus of international discussions. In 2013, for example, the Minamata Agreement was adopted at UN level with the aim of reducing global anthropogenic mercury emissions. It entered into force in August 2017 after being ratified by more than 50 signatory states.

The German cement industry is therefore continuing its efforts to further reduce its mercury loads in the future. In the IGF predecessor project 18023 N, extensive investigations were carried out into the suitability of sorbent supported dust removal to reduce mercury cycles and emissions. It was shown that a targeted injection of sorbents into the exhaust gas path of cement rotary kiln plants in direct operation can be a possibility to support the dust discharge in direct operation practiced in many German plants if required.

The aim of this research project is to extend the technical-scientific basis for reducing the mercury loads in the exhaust gas path of cement rotary kiln plants by sorbent supported dust removal and to show possibilities for optimisation. It is to be shown that the greatest possible benefit can be derived from the measure by an improved distribution of injected sorbents in the waste gas stream. The main objective is to achieve the highest possible Hg separation rate from the gas phase while at the same time minimising the use of sorbents. All cement plants, especially small and medium-sized companies without the possibility of carrying out their own extensive research and development activities, can benefit from this.

Sponsors

The IGF project 20514 N of VDZ Technology gGmbH is supported by the AiF within the framework of Industrial Collective Research (IGF) of the Federal Ministry of Economic Affairs and Energy on the basis of a decision of the German Bundestag.

Person to contact

Do you have questions regarding this project?

Dr Volker Hoenig
Environment and Plant technology

+49-211-45 78-254
ubt@vdz-online.de

Other items of possible interest

01.01.2014

Research projects

Reducing mercury loads in rotary cement kilns using sorbents

The research project was investigating the extent to which the different types of mercury bond, the alkaline atmosphere and high dust loading influence the effectiveness of possible additives such as activated charcoal, open-hearth coke or other calcium compounds and mixtures of these.

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