Is the liquefaction and purification of carbon dioxide classified as Category B in terms of fire hazard?
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Is the liquefaction and purification of carbon dioxide classified as Category B in terms of fire hazard? Does anyone know the full picture of this technology in industry?
Carbon dioxide does not burn nor does it support combustion; therefore, its fire hazard is not classified as Category B. In fact, it is often used as a fire extinguishing agent. The industrial process for purifying liquefied carbon dioxide involves cooling gaseous carbon dioxide under high pressure to cause it to liquefy, and then separating impurities through methods such as distillation to obtain carbon dioxide of high purity. During this process, it is necessary to control the temperature and pressure of the equipment to prevent damage or leaks, but fire is not the main safety risk. .
It shouldn’t be classified as Category B; some domestic specialty gas manufacturers produce this high-purity carbon dioxide
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Check what refrigerant is used for liquefaction; if it is ammonia, it may be classified as Category B