Investigation of a Gas-Solid Separation Process for Cement Raw Meal

Claus Maarup, Klaus Hjuler, Karsten Clement, Kim Dam-Johansen

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The gas/solid heat exchanger (2D-HX), developed to replace the cyclone preheaters in cement plants is presented. This design aims at reducing construction height and operation costs. The separation process in the 2D-HX is experimentally investigated, and the results show that separation efficiencies up to 90% can be achieved in the gravitationally driven process. Based on the data, a model of the separation process is developed, utilizing relations from pneumatic transport and cyclone theory. The model fit is acceptable, especially in the area of interest. Based on experimental data, further development of the technology is encouraged.
Original languageEnglish
JournalProcedia Engineering
Pages (from-to)921-929
Publication statusPublished - 2015
Event7th World Congress on Particle Technology - Beijing, China
Duration: 19 May 201422 May 2014


Conference7th World Congress on Particle Technology

Bibliographical note

© 2015 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license


  • Cement production
  • Raw meal preheating
  • Gas/solid heat exchange
  • Gas/solid separation
  • Saltation
  • Modeling

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