Method for heat recovery in vinyl chloride monomer structures or in the structure composite dichloroethane/vinyl chloride, and device suitable for same
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United States of America Patent
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May 10, 2016
Grant Date -
Dec 10, 2015
app pub date -
Dec 20, 2013
filing date -
Jan 10, 2013
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Abstract
Energy savings in an integrated DCE/VCM plant, optionally also containing a PVC plant, is accomplished by using at least part of the vapor from a DEC quenching column to supply heat to an HCl column. The DCE plant has a high boiler column operating at superatmospheric pressure, and heat is removed from an overhead stream and used to supply heat to other portions of the process.
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