【Ethylene Tank Farm Technology】What is the principle of low-temperature storage of ethylene?
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Principle of low-temperature storage for ethylene? Ethylene is stored at near-atmospheric pressure and at a temperature slightly below its boiling point. Storing low-temperature ethylene relies on the principles of compression, heat removal, and throttling expansion refrigeration to achieve insulation. The specific process is as follows: The ethylene gas that evaporates from the top of the storage tank is compressed by a compressor, cooled by circulating water, condensed in a condenser, and then subjected to throttling expansion for cooling, thereby maintaining the low-temperature liquid ethylene within the storage tank. The regulation of the cooling capacity is achieved through the automatic control of the suction and compression of gaseous ethylene at the top of the storage tank for liquid ethylene at low temperatures.
The cryogenic storage of ethylene mainly relies on the principles of compression, heat removal, and throttling expansion refrigeration. The ethylene gas vaporized inside the storage tank is compressed by a compressor, then cooled and condensed; subsequently, throttling expansion refrigeration is used to maintain the low temperature necessary for keeping ethylene in a liquid state. During this process, maintaining a constant amount of cold is primarily achieved through automatic control of the suction and compression of the gaseous ethylene at the top of the storage tank. .