Patent · US Active

Method and device for the absorptive removal of carbon dioxide from biogas

US8512660B2 · kind B2 · utility

3Cited by

1References

15Claims

0Family size

Assignee

MT-Biomethan GmbH · DE

Inventors

Stephan Engelke · Drensteinfurt, DE
Uwe Jordan · Worpswede, DE

Key dates

Filing date	Sep 14, 2012
Grant date	Aug 20, 2013
Priority date	—
Expiry date	Sep 14, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/59
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The absorptive removal of carbon dioxide from biogas using a scrubbing liquid in which carbon dioxide is chemically bound proceeds by heating the loaded scrubbing liquid, occurring after the absorption, to a temperature at which liberation of CO2 begins. Immediately thereafter, the loaded scrubbing liquid is fed to at least one centrifugal separator for separating off the gas phase from the liquid phase, wherein methane and dissolved fractions of CO2 escape via the gas phase. After separation is complete, the gas phase is passed into the absorber unit and the liquid phase is further heated to the temperature required for desorption and fed to the desorption unit for regeneration.

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