Cement is everywhere. The industry is turning to carbon capture to curb emissions, and it's not alone

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Cement is ubiquitous, but the process of making it emits carbon into the atmosphere. The industry says there's no easy way to avoid that, which is why it's turning to carbon capture and storage technology as a way to decarbonize.

"It's not just a question for the steel sector, but the larger manufacturing sector … 'Where is the sequestration?'" said Chad Cathcart, director of research for Hamilton-based Stelco, speaking on a panel at a carbon capture conference in Edmonton this week.Aside from location, there are other factors that can make or break a carbon capture project.and can be hindered by factors like labour availability, financing and government policy.

The concrete and cement industry therefore isn't relying on carbon capture alone to meet its net-zero targets. A technician controls the quality of cement clinker at a plant in Spay, France, in 2013. Clinker is the substance that results when ground limestone, clay and sand is heated at extremely high temperatures in a kiln. The nodules are then ground into cement.the use of coal and coke as heat sources, ramping up the use of alternative fuels and reducing the use of clinker.

Still, the association noted that despite the limitations, CCS remains the only technology that can eliminate the sector's process emissions.

 

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