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Dry Ice Plant

Dry Ice Plant Dry-Ice refers to carbon dioxide in its solid state (frozen carbon dioxide). The maximum temperature of dry ice is - 78.5 ºC and normally its density is 1.56 g/cm³. Dry-Ice comes with an advantage of removing the heat of the water with an efficiency that is twice as much as the water ice. Generally available in block, slices and pellets, Dry-Ice changes directly from solid to gaseous state in normal atmospheric conditions without going through a wet liquid stage.

Distinct from regular water ice, which exists at temperatures of 32°F (0°C) and below, dry ice is extremely cold, hence, useful for freezing. Carbon dioxide vapor is substantially heavier than air and in confined, poorly ventilated spaces it can displace air, causing asphyxiation. However, it is extremely popular and widely used because of it can be simply converted its frozen form with the help of dry-ice manufacturing gas plants and is safe & easy to handle using insulated gloves.

Dry-Ice Plant Process
The various stages in the production process of dry-ice by a high quality Dry-Ice Gas Plant are:-
  • The first step of the process of making dry-ice consists of compressing and cooling gaseous CO2 under high pressure to produce liquid CO2 and removing any excess heat.

  • The CO2 gas is further cooled until it condenses into a 100% liquid.

  • The next step is to reduce the pressure over the liquid carbon dioxide by sending it through an expansion valve.

  • Finally, the liquid CO2 is then allowed to expand to atmospheric pressure to produce CO2 snow. Part of the liquid sublimates (changes directly from a solid to a gas), causing the remainder to freeze into snowflakes.

  • The dry ice is then compressed hydraulically under a large press to form blocks, slices or pellets.

  • After processing, dry-ice is stored in an insulated container as the thicker the insulation, the slower it will sublimate. The sublimation of Dry Ice to Carbon Dioxide gas may result in expansion or possibly explodation of an airtight container.
The various industries in which one can commonly spot these dry-ice plants is Food Processing and Shipping, Oil Industry, Metallurgy (Cold Testing, and Aluminum Cold Storage), Baking, Life Sciences, Industrial, Medical and Laboratory Applications, Plantation, Air quality testing, Cold Grinding, Shrink fittings, Deflashing Molding Plastics & Rubber, Inerting and Cooling and Construction and Repairs.

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