Patent · US Active

Process and apparatus for heat recovery in vinyl chloride monomer plants or in integrated vinyl chloride monomer or polyvinyl chloride plants

US9481620B2 · kind B2 · utility

1Cited by

1References

11Claims

0Family size

Assignee

THYSSENKRUPP INDUSTRIAL SOLUTIONS AG · DE

Inventors

Michael Benje · Darmstadt, DE
Peter Kammerhofer · Altötting, DE

Key dates

Filing date	Nov 15, 2012
Grant date	Nov 1, 2016
Priority date	—
Expiry date	Nov 15, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/10
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.