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PROCESS AND APPARATUS FOR HEAT RECOVERY IN VINYL CHLORIDE MONOMER PLANTS OR IN INTEGRATED VINYL CHLORIDE MONOMER/POLYVINYL CHLORIDE PLANTS
PROCESS AND APPARATUS FOR HEAT RECOVERY IN VINYL CHLORIDE MONOMER PLANTS OR IN INTEGRATED VINYL CHLORIDE MONOMER/POLYVINYL CHLORIDE PLANTS
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机译:氯乙烯单体或一体化氯乙烯单体/聚氯乙烯植物的热回收过程和装置
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摘要
Disclosed is a process and apparatus for heat recovery in vinyl chloride monomer manufacturing plants or in integrated vinyl chloride monomer/polyvinyl chloride manufacturing plants. A process for capture and use of excess heat recovered in the production of vinyl chloride includes distillatively purifying DCE in a high-boilers column, using a heat exchanger to capture thermal energy from a purified DCE vapor stream from the high-boilers column, generating low pressure steam from the captured thermal energy, returning condensed DCE vapors to the high-boilers column, and heating parts of the plant with the generated low pressure steam.
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