Ethylene low-temperature purification device
An ethylene and low-temperature technology, applied in the field of low-temperature purification devices for ethylene, can solve the problems of aggravating the global warming effect and economic losses, etc.
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[0016] Below in conjunction with accompanying drawing, the present invention is described in detail: as figure 1 As shown, a low-temperature purification device for ethylene consists of molecular sieve adsorption and purification unit I, low-temperature separation cold box unit II, and refrigerant replenishment system, which are connected by pipelines. There are a raw gas pre-cooling heat exchanger 1, a water separation tank 2, a first molecular sieve adsorber 3, and a second molecular sieve adsorber 4, wherein one end of the raw gas pre-cooling heat exchanger 1 is connected to the external raw material gas through a pipeline, and the other end passes through The pipeline is connected to the water separation tank 2, and the top of the water separation tank 2 is provided with a gas pipeline, which is respectively connected to the first molecular sieve adsorber 3 and the second molecular sieve adsorber 4, and a sewage pipeline 13 is arranged at the bottom thereof, which is connec...
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