How do you figure they just take CO2 out of the air and turn it into dry ice?
First they make CO2:
It is produced by burning natural gas to separate the carbon and hydrogen atoms. Hydrogen is then combined with nitrogen to create ammonia. The carbon atoms can then combine with oxygen to create CO2 as a byproduct.
Then the CO2 is purchased and turned into dry ice thusly
Dry ice is made through a relatively complicated process, including:
Pumping liquid carbon dioxide into holding tanks and released into tanks into a dry ice press.
The liquid cools to the freezing point and is inserted in a dry ice press. The dry ice press will put a large amount of pressure on the liquid beneath to press it into a shape.
The liquid will immediately turn into a solid and then resemble snow. Once the snow is created, the dry ice press will use extreme amounts of pressure to compact it into a firm block.
To achieve anything, you must be prepared to dabble on the boundary of disaster.”
Sir Stirling Moss
