Patent · US Active

System and process for polarity swing assisted regeneration of gas selective capture liquids

US9707508B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

Battelle Memorial Institute · CH

Inventors

David J. Heldebrant · Richland, US
Ward E. TeGrotenhuis · Kennewick, US
Charles Freeman · Kennewick, US
Michael Elliott · Jaffa, IL
Phillip K. Koech · Richland, US
Paul H. Humble · Kennewick, US
Feng Zheng · Richland, US
Jian Zhang · Taizhou City, CN

Key dates

Filing date	Sep 2, 2011
Grant date	Jul 18, 2017
Priority date	—
Expiry date	May 2, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P20/129
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A polarity swing-assisted regeneration (PSAR) process is disclosed for improving the efficiency of releasing gases chemically bound to switchable ionic liquids. Regeneration of the SWIL involves addition of a quantity of non-polar organic compound as an anti-solvent to destabilize the SWIL, which aids in release of the chemically bound gas. The PSAR decreases gas loading of a SWIL at a given temperature and increases the rate of gas release compared to heating in the absence of anti-solvent.

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