Patent · US Active

Process and plant for recovering NH3 from a mixture comprising NH3 and acid gases

US8821822B2 · kind B2 · utility

1Cited by

7References

13Claims

0Family size

Assignee

Lurgi GmbH · DE

Inventors

Gert Ungar · Frankfurt am Main, DE
Matthias Linicus · Champigny-sur-Marne, FR

Key dates

Filing date	Nov 13, 2009
Grant date	Sep 2, 2014
Priority date	—
Expiry date	Aug 19, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/151
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Disclosed herein is a process and a plant for recovering ammonia from a mixture including ammonia, acid gas containing H2S and/or CO2 and low-boiling water-soluble organic components. To avoid an enrichment of volatile organic compounds in the acid gas absorber, a partial stream of the liquid phase is withdrawn from an acid gas absorber and processed such that gaseous ammonia with a reduced content of volatile organic components is obtained, which is recirculated into the acid gas absorber.

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