Patent · US Active

Method and apparatus for energy reduction in acid gas capture

US7993433B2 · kind B2 · utility

0Cited by

2References

11Claims

0Family size

Assignee

NTNU TECHNOLOGY TRANSFER AS · NO

Inventors

Hallvard F. Svendsen · Trondheim, NO
Finn Andrew Tobiesen · Trondheim, NO
Thor Mejdell · Trondheim, NO
Karl Anders Hoff · Trondheim, NO
Olav Juliussen · Trondheim, NO

Key dates

Filing date	Jun 28, 2006
Grant date	Aug 9, 2011
Priority date	—
Expiry date	Jan 29, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02C20/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a new method for removing and recovering of acid gases from a gaseous mixture in an absorption plant by adding an organic acid to a stream of the rich absorbent in the desorber in order to release acid gas by shifting the acid gas equilibrium towards the gas side, and the organic acid is subsequently separated from the absorbent. With this method, the energy consumption of the process is substantially reduced. The invention also relates to an apparatus for performing this method.

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