Patent · US Expired

Absorption medium and deacidification of fluid streams

US7666813B2 · kind B2 · utility

27Cited by

5References

9Claims

0Family size

Assignee

BASF SE

Inventors

Frank Hoefer · Bad Dürkheim, DE
Norbert Asprion · Ludwigshafen, DE
Iven Clausen · Mannheim, DE
Hans Hasse · Kaiserslautern, DE

Key dates

Filing date	Mar 8, 2005
Grant date	Feb 23, 2010
Priority date	—
Expiry date	Apr 1, 2026

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W30/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An absorption medium for deacidifying fluid streams which has improved oxidation stability includes at least one aliphatic amine, and at least one non-hydroquinoid antioxidant. The absorption medium may be employed in deacidifying a fluid stream, in particular an oxygen-containing fluid stream, when the fluid stream is brought into intimate contact with the absorption medium in at least one absorption step.

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