decarbonize

To remove carbon from something.

During the overhaul, the cylinder heads were found to be reusable, as long as they got a good cleaning to decarbonize the valve seat areas.

To decarbonize piston rings and ring grooves, remove each ring carefully by spreading the ends just enough to get them clear of the piston top land and lifted off.

To remove carbon from something.

A blast furnace decarbonizes iron enough that it can be used as input to a steelmaking furnace.

Repeatedly scorching a case-hardened tool will ruin the case by decarbonizing it.

To remove carbon from something.

Efforts to decarbonize the automotive fleet are challenging, but no one wants nightmare-grade climate change, either.

Efforts to decarbonize have been facing some challenges lately.