Innovation 3
Develoment of a radically new cement kiln integrated with amine capture
Develoment of a radically new cement kiln integrated with amine capture
A characteristic of cement kilns is that only 1/3 of their CO2 emissions come from the fuel, while the other 2/3 come from the calcination of limestone. Another difference is the lack of steam or low-temperature waste heat on site, which calls for radically new thinking for minimizing CO2 capture cost and energy penalties.
Using data supplied for the HC Hannover kiln as a starting point,
a cement kiln will be is designed from scratch to identify synergies with amine CO2 capture to:
combine the heat supply for steam generation and the kiln and identify heat integration opportunities
combine structural elements such as preheater tower and CO2 absorber to reduce cost
identify operational synergies
A mature and commercial solvent technology is required for this approach to allow for the appropriate integrated process design. Linde will provide the capture process technology input, given its maturity and commercial availability and cooperate tightly with cement kiln technology supplier KHD. The kiln will be specifically designed for biomass as fuel, thus maximizing the potential for CDR from cement kilns.
Innovation 1
Piloting of environmentally benign enzymatic solvent combined with an RPB absorber
Innovation 2
Piloting of recarbonation of demolition concrete fines
Innovation 3
Develoment of a radically new cement kiln integrated with amine capture
