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Low Pressure Drop Cyclones for Suspension Preheaters

Cyclones are a basic component of plants with pre-heating systems. The installation of newer cyclones in a plant with lower pressure losses will reduce the power consumption of the kiln exhaust gas fan system.

Development Status Products

Low Pressure Drop Cyclones for Suspension PreheatersCosts & Benefits

Parent Process: Clinker Making
Energy Savings Potential

Power savings in the range of  0.7-4.4 kWh/t clinker  depending upon feasibility of cyclone  modification and  fan efficiency. 

Indian flag In India, average savings are reported to be 1.5 kWh/t clinker. 

CO2 Emission Reduction Potential

Chinese flag Use of this option may reduce CO2 emissions by 0.5 to 3.5 kg per ton of clinker produced. 

indian flag Based on the average savings of 1.5 kWh/t clinker, use of this technology reduces CO2 emissions by 1.2 kg per ton of clinker produced. 


The cost of a low-pressure drop cyclone system is assumed to be US $3 per annual ton clinker capacity.  Installation of the cyclones can be expensive, since it may often entail the rebuilding or the modification of the preheater tower, and the costs are very site specific. 

Low Pressure Drop Cyclones for Suspension PreheatersSchematic

Low Pressure Drop Cyclones for Suspension Preheaters Publications

Energy Efficiency Improvement Opportunities for the Cement Industry

The U.S. Environmental Protection Agency’s (EPA) energy guide, Energy Efficiency Improvement and Cost Saving Opportunities for Cement Making, discusses energy efficiency practices and technologies that can be implemented in cement manufacturing plants. This ENERGY STAR guide provides current real world examples of cement plants saving energy and reducing cost and carbon dioxide emissions.

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Development of State of the Art Techniques in Cement Manufacturing: Trying to Look Ahead

The report represents the independent research efforts of the European Cement Research Academy (ECRA) to identify, describe and evaluate technologies which may contribute to increase energy efficiency and to reduce greenhouse gas emissions from global cement production today as well as in the medium and long-term future. 

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