The Clinker Burning Process Simulated with Different Thermochemical Databases

Proceedings of the Fifth International Conference on Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics, Greece, September 2001( 2001) 
Language: English

 

The Clinker Burning Process Simulated with Different Thermochemical Databases

Modigell M. | Liebig D. |

Institute for Chemical Engineering, RWTH Aachen, Turmstrasse 46, 52056 Aachen, Germany

 

Hack K. |

GTT-Technologies, Kaiserstrasse 100, 52134 Herzogenrath, Germany

 

Keywords: | chemapp | process simulation | cement | promosys |

 

Abstract

In a clinker production plant the behaviour of heavy metals has to be supervised due to reasons of product quality and ecological impact. In order to save expensive large scale tests, the examination of the influence of these minor substances may be done by computer simulations. Therefore a model of the clinker burning plant has been developed which allows the calculation of the process.

But for the calculation of the chemical reactions inside the plant a specialised database is required describing all components of the clinker material system and their mixtures. Since yet there exists no database meeting all of these demands, several simulations have been carried out using the same physical model of the clinker burning process but various material data sets. The data sets differ with respect to several aspects such as the number of elementary components or the degree of detail in the description of mixture phases.

The influence of the material data on the final simulation result is pointed out and an outlook is given how further research in the field of cement material data will improve the simulation of the clinker burning process.