Patent · US Active

Method for capturing CO2 from exhaust gas

US8703082B2 · kind B2 · utility

3Cited by

5References

7Claims

0Family size

Assignee

Sinvent AS · NO

Inventors

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

Key dates

Filing date	Dec 17, 2007
Grant date	Apr 22, 2014
Priority date	—
Expiry date	Dec 17, 2027

Classification

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

Abstract

The present invention relates to a method for capturing CO2 from exhaust gas in an absorber (A1), wherein the CO2 containing gas is passed through an aqueous absorbent slurry wherein said aqueous absorbent slurry comprises an inorganic alkali carbonate, bicarbonate and at least one of an absorption promoter and a catalyst, and wherein the CO2 is converted to solids by precipitation in the absorber, said slurry having the precipitated solids is conveyed to a separating device (F1), in which the solids are separated off, essentially all of at least one of the absorption promoter and catalyst is recycled together with the remaining aqueous phase to the absorber.

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