Naslov
Reducing CO2 emissions in cement industry – the calcination model

Autori
Mikulčić, Hrvoje ; Minić, Ivica ; von Berg, Eberhard ; Fidaros, Dimitris K. ; Vujanović, Milan ; Priesching, Peter ; Tatschl, Reinhard ; Duić, Neven ; Stefanović, Gordana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of ECOS 2011 - The 24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems / - Novi Sad, 2011

Skup
ECOS 2011 - The 24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems

Mjesto i datum
Novi Sad, Srbija, 04.07.2011. - 07.07.2011

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Calcination process; Cement calciner; CFD; Cement production; Fuel efficiency

Sažetak
The cement industry is one of the leading producers of the greenhouse gases, where carbon dioxide is the most significant anthropogenic greenhouse gas. There are two thermo-chemical processes involved in cement production which contribute to these emissions. One is the thermal decomposition of limestone, widely known as the calcination process, and the other is the combustion of fossil fuels. Recently, researchers have invested significant effort to improve the energy consumption and pollutant formation of the overall cement manufacturing process. One of these improvements was made by dividing the calcination and clinkering process into two separate furnaces, where the calcination process is performed in a furnace called a calciner, and the clinkering process is performed in a rotary kiln. Because this is a new technology in the cement manufacturing process, cement calciners are still in the research and development phase. The purpose of this paper is to present the first phase of the cement calciner's development, which is the CFD simulation of the cement calciner, with an implemented mathematical model of the calcination process. From the results gained by these simulations, researchers will have an in-depth understanding of all thermo-chemical reactions in a cement calciner. This understanding can be used for the optimization of the calciner's geometry, to have a more efficient production, to lower the pollutant formation and subsequently reduce greenhouse gases emission.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Strojarstvo

POVEZANOST RADA