Postcombustion, oxycombustion and other CO2 capture technologies
The CO2 emitted by a cement plant is mainly process CO2, i.e. 66 %, coming from the calcination of limestone, while 34 % is due to combustion. Therefore, there are a variety of levers to mitigate the CO2 emissions of the cement-making process: the “usual” ones, the technological ones and new products development.
Our talk will present these different levers with a special focus on CO2 capture technologies.
Detailed cost estimations will be given for postcombustion amine scrubbing, oxycombustion and separated calcination CO2 capture technologies. Conclusion is that, even if the more integrated technology the cheaper, no viable business model is existing yet for CO2 capture in the cement plant.