The most interesting thing I saw in that article was the rotating air heater. Induce turbulence and shock waves in air and heat to very high temperature, without having a resistive heating element that has to be at least that hot.
If you are going with electrical energy -> heat, you can get energy storage for free. It's much cheaper to store a kWh of high grade heat as sensible heat than it is to store a kWh of electrical energy in a battery. So electrification of cement production will be able to act as a large amount of dispatchable demand, simply by tacking on a heat store.
If you are going with electrical energy -> heat, you can get energy storage for free. It's much cheaper to store a kWh of high grade heat as sensible heat than it is to store a kWh of electrical energy in a battery. So electrification of cement production will be able to act as a large amount of dispatchable demand, simply by tacking on a heat store.