Patent · US Expired

Method for producing ethylene oxide by directly oxidizing ethylene with air or oxygen

US6397599B1 · kind B1 · utility

2Cited by

4References

8Claims

0Family size

Assignee

BASF SE

Inventors

Gerhard Theis · Frankenthal (Pfalz), DE
Frans Vansant · Kalmthout, BE

Key dates

Filing date	Feb 13, 2001
Grant date	Jun 4, 2002
Priority date	—
Expiry date	Feb 13, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/129
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

In the preparation of ethylene oxide by direct oxidation of ethylene with air or oxygen using water as heat carrier to dissipate the heat of reaction, with water vapor being formed, a process for optimizing the specific energy consumption is proposed. In this, the water vapor is first expanded in one or more backpressure steam turbine(s) T for operating working machines M, before it is fed to one or more consumers, such as bottoms reboilers or steam injectors, for further utilization.

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