Question

What would happen if water vapour and Carbon dioxide are not removed in the process of separating air?

Answer 1

The liquid air can be separated into its constituent gases in the following steps:

1. The air is first filtered to remove dust particles, water vapour, and carbon dioxide.
2. The air is then compressed to high pressure and cooled to expand quickly into a chamber through a jet.
3. The process of compression, cooling, and quick expansion of air is repeated again and again in order to make the air cooler so that it turns into a liquid to obtain liquid air.
4. The liquid air is fed into a fractional distillation column from its bottom and warmed slowly.

If water vapor and Carbon dioxide$\left({\mathrm{CO}}_2\right)$ are not removed, they would become solid and block the pipes.