475 Technical Solutions for Reduction of Waste Fuel Specific Emissions Flue Gas t reatment Innovative Technical Solutions for Reduction of Waste Fuel Specific Emissions in Cement Plants



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2017 WM 475-498 Sarc



475

Technical Solutions for Reduction of Waste Fuel Specific Emissions

Flue 

Gas T

reatment

Innovative Technical Solutions for Reduction  

of Waste Fuel Specific Emissions in Cement Plants

Renato Sarc, Roland Pomberger and Karl E. Lorber

1.  

Situation of European cement industry ...................................................475



1.1.  

Energy recovery from RDF in the austrian cement industry ................478

1.2.  

Energy recovery for RDF in cement kilns................................................481



2.  

Emissions from cement plants ..................................................................483

2.1.  

Selected real data on measured emissions  



from austrian cement plants ......................................................................485

2.2.  


Comparison of specific CO

2

 emissions at international level ...............489



3.  

Innovative technical solutions for reduction  

of waste fuel specific emissions .................................................................490

3.1.  


Exmercury splitted preheater system  ......................................................491

3.2.  


CTP-off-gas treatment system ...................................................................492

4.  


Conclusions ..................................................................................................494

5.  


References ....................................................................................................495

In this contribution, after the introduction in the issue and presentation of the current 

state of international cement industry, real data on measured emissions (dust, organic 

carbon, nitrogen oxide, mercury, cadmium and thallium as well as dioxins and furans) 

from selected Austrian cement plants are delivered. Additionally, selected data on CO

2

 



emissions are shown. Finally, innovative technical solutions for reduction of waste fuel 

specific emissions are presented. On the one side, Exmercury splitted preheater system 

for reduction of mercury emissions in the precipitated filter dust, and on the other 

side the CTP-regenerative thermal oxidation (RTO) for efficient treatment of volatile 

organic pollutants and odours in off gas are described. Both technologies have been 

successfully installed and are operating in selected Austrian cement plants. 

1. Situation of European cement industry

Altogether, 157 cement kilns use alternative fuels (refuse derived fuels – RDF) for 

supplying their thermal energy demand in selected countries of the EU and in Nor-

way. The regional distribution of these installations across the EU Member States is 

documented in the following Table 1.




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