This JI project at YugCement, owned by Dyckerhoff AG, aims to significantly decrease the CO2 emissions from two sources:
fossil fuel combustion and calcinations. YugCement is the largest plant of the building materials industry in the south of Ukraine with design production capacity more than 1.25 million tonnes of cement per year.
The project foresees the adoption of blast furnace slag (BFS) as decarbonised raw material in the raw meal fed to the kilns. The project target is to increase proportion of slag to some 15 per cent. Addition of slag reduces both the emission due to the calcinations of raw materials in the kilnand fuel consumption.
Effect of slag addition occurs due to the following:
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less CO2 is emitted during calcinations process in the kiln as slag contains significantly less CaCO3 which decomposes to CaO and CO2 at high temperature in the cement kiln;
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less heat and subsequently less kiln fuel is required for decomposition of limestone in the kiln. Therefore, less CO2 emissions from fuel combustion occurs;
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slag reduces the overall moisture content of the slurry therefore less kiln fuel is consumed to evaporate moisture from it. Less CO2 is emitted from fuel combustion.
Emission Reductions
The project is expected to started reducing emission in 2010 and the total expected emissions reductions are around 157,972 tonnes of CO2e. Global Carbon BV has developed all documentation for this project including an approach to set the baseline and monitoring plan.
