Patent · US Expired

EB/SM splitter heat recovery

US7642390B2 · kind B2 · utility

1Cited by
12References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 5, 2003
Grant dateJan 5, 2010
Priority date
Expiry dateDec 21, 2025

Classification

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

Abstract

Improved methods and related apparatus are disclosed for efficiently recovering the heat of condensation from overhead vapor produced during separation of various components of dehydrogenation reaction effluent, particularly in ethylbenzene-to-styrene operations, by the use of at least a compressor to facilitate azeotropic vaporization of an ethylbenzene and water mixture within a preferred range of pressure/temperature conditions so as to minimize undesired polymerization reactions.

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