Please explain in detail the principle of methanation of ice. Thank you!
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Please explain in detail the principle of methanation of ice. Thank you!
Methanol dissolves in water, and its freezing point is much lower than that of water (–97 degrees Celsius), so methanol can melt ice. It works on the same principle as frozen saline.
This question has also puzzled me all along. It seems that everyone says it is by forming a mixture with water that the freezing point is lowered. I think that makes sense too. I wonder if you understand. It can be understood in this way: whether methanol is added or not, the cold ammonia pump will still come into contact with condensed water from the air during its standby period. Due to the presence of methanol, the condensed water mixes with it, and the freezing point of this mixture is very low, so it does not freeze. Of course, the design of such a mechanical seal is quite complex; one would need to consult experts in mechanical engineering for help