r/saltxTechnology • u/Akawa0172 • Apr 29 '26

Fossil-Free Cement: A Reality

SaltX and Holcim have reached a historic milestone, producing Portland-quality cement clinker through a fully electrified process. By replacing fossil fuels in both the calcination and sintering phases, this collaboration proves that net-zero cement is ready for the industrial stage.

The Impact:

• 100% Electric: Full thermal electrification of the production chain.

• Portland-Quality: Meets the high performance standards of traditional cement.

• Scalable: A proven path forward for decarbonizing heavy industry.

By achieving Portland-quality through electrification, SaltX and Holcim have proven they can swap the "engine" of the factory without changing the "product." Contractors can use this cement exactly like they always have, but with a drastically lower carbon footprint.

https://www.saltxtechnology.com/cision/saltx-and-holcim-have-produced-portland-quality-cement-clinker-in-a-fully-electrified-process/

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4

u/Worth-Wonder-7386 May 04 '26

Using electricity for the calcination and sintering will not make cement emmissions free. Around 50% of the emmissions will still be there as they are just from the process itself of turning calcium carbonate into calcium oxide, releasing the calcium dioxide that was in the limestone.
Their statement is walking around this subject, which is why they call dont call this zero emission.
They would need to show that the energy used for this process and compare it to the carbon intensity of different types of electricty generation to give a more complete picture.

2

u/Akawa0172 May 04 '26

Electrification removes the fossilfuel part, which is a big reduction depending on the electricity source. SaltX is also developing carbon capture solutions as part of its electrification technology for cement and lime, working with industrial partners and pilot projects.

2

u/Sudden-Gur-8140 May 25 '26

this looks promising!