High temperature solar-heated reactors for industrial production of reactive particulates
In this project DLR is participating to introduce concentrated solar power to already established industrial processes. The main customers for such a technology are the lime, phosphate and cement industries. All three of those are big branches, in which the calcination of the feeds is essential. The biggest industry which relies on the calcination is the cement industry. For that, 2/3 of the utilized fuel for the process is used. Cement mixed with water yields concrete, which is after water the second most used commodity worldwide. For this reason the industry is responsible for ca. 9 % of the worldwide CO2-emissions. Half of this evolves through the reaction whereas the other half is caused by the used fuels. Due to the growth of the emerging nations, an increase of the cement need and thereby the CO2-emissions is expected. Currently, fossil fuels, waste and tires are used as fuels for the calcination.
The goal of the SOLPART project is to perform the energy intensive step of calcination with concentrated solar power and thereby supplying 2/3 of the energy need of the process. The planned reactor concept will act as an extension to the existing plant. So, bigger changes on the plant will be avoided. Additionally a storage will be employed. This allows providing the calcined subproduct, which is produced in ca. 8 h of solar operation, during the whole day to the process. The biggest challenge with the solar reactor is the treatment of different educts in different shapes, even as powders. During the project lab-scale tests will be performed before a pilot-scale loop is tested.
CNRS (Centre National de la Recherche Scientifique)
University of Manchester
EPPT (European Powder & Process Technology)
New Lime Development
Université Cadi Ayyad
OCP (Office Cherifién des Phosphates)
Co-funded by the Horizon 2020 Framework Programme of the European Union