Water expansion while freezing

Both the lack of freezing and the inability of ions to enter the pores containing motionally restricted water can be explained by the existence of fragmented clusters such as monomors, dimers etc. Thus, the presence of these fragmented clusters prevent the necessary aggregation and co-operative expansion needed for an ice-like structure to exist, while at the same time they are less able to hydrate ions resulting in low solubilities and consequently low rejections in the desalination sense (1,2 ). This could be the microscopic mechanistic basis for the solution-diffusion model so... 

The air to be separated passes a filter and is then fed to a compressor equipped with intercoolers and separators to raise it to pressures between 50 and 200 bar. In a first heat exchanger, the air is cooled down to little more than the water freezing point and then fed to alternating adsorbers, one of which adsorbs water, carbon dioxide and such trace elements as acetylene and hydrocarbons while the other is regenerated with dry warm gas. The clean air is then led to the cryogenic section in which some of it is cooled by flashing it to approximately 6 bar in an expansion engine. Before it enters the bottom of the pressure column, it... 

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