What is Dry Ice?
and How is it made
Cold Jet's high-density dry ice products are optimized for all industrial and commercial applications, including food freezing and shipment, metal fitting, dry ice blasting and many other uses. To ensure optimum results, Cold Jet developed patented technology that produces high-quality, high-density dry ice products.
CO2 is a natural media, which serves many life sustaining purposes. It is a key element involved in the carbon cycle; it is the only source of carbon for the carbohydrates produced by agriculture; it stimulates plant growth; and it helps to moderate the overall temperature of the earth. Animal respiration is believed to add 28 million tons of carbon dioxide per day into the atmosphere. By contrast, the U.S. CO2 industry can supply only 25,000 tons per day and 95% of this amount is from by-product sources, or less than 0.04% of the other sources combined.
With a low temperature of -78° C, dry ice solid has an inherent thermal energy ready to be tapped. At atmospheric pressure, solid CO2 sublimates directly to vapor without a liquid phase. This unique property means that the dry ice blast media simply disappears, leaving only the original contaminant to be disposed of. In addition, cleaning in water-sensitive areas (e.g. in the vicinity of electrical cabinets) is now practical.
The grade of carbon dioxide used in blasting is the same as that used in the food and beverage industry and has been specifically approved by the FDA, the EPA and the USDA. Carbon dioxide is a non-poisonous, liquefied gas that is both inexpensive and easily stored at work sites. Of equal importance, it is nonconductive and non-flammable.
CO2 is a natural by-product of several industrial manufacturing processes such as fermentation and petrochemical refining. The CO2 given off by the above production processes is captured and stored without losses until needed. When the CO2 is returned to the atmosphere during the blasting process, no new CO2 is produced. Instead, only the original CO2 by-product is released.