Can water be avoided in the Limestone cycle

[SMathew]

I am doing a science fair project and have a question about the limestone cycle. A typical limestone cycle has 3 parts given below:

Cycle - Part 1:
              CaC03 + Heat -> Ca0 + C02

Cycle – Part 2:
              Ca0 + H20 -> Ca(OH)2

Cycle – Part 3:
              Ca(OH)2 + CO2 -> CaC03 + H20

The question is - Can Part 2 of the above cycle be skipped i.e. the part that requires water? And shorted the cycle as:

Cycle - Part 1:
              CaC03 + Heat -> Ca0 + C02

Cycle – Part 2:
              Ca0 + CO2 -> CaC03

Appreciate help in this.

Thanks
SMathew

[chenbeier]

Theoretical yes, but then you cannot make concrete.  Everything has to be mixed with water.

[SMathew]

Thank you for the reply. For my science project, I plan to use limestone to capture CO2 from the air. If possible, I would like to avoid using water. Can this be achieved?

Thanks

SMathew

 

[chenbeier]

Should be possible, but you have to find a way to  get a large surface.

[SMathew]

Thank you, chenbeier for the help.