DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Methods and systems for emissions control in solvent-based CO2 capture processes using CO2

Abstract

A method with corresponding systems for reducing emission of amines to the atmosphere. The method includes a a) introducing a gas containing CO2 into an absorber; b) flowing the flue gas through an absorber having an absorbent with a water-lean solution having less than 50% water and one or more amines, with the absorbent capturing the CO2 and forming a reduced CO2 content gas having a baseline CO2 content; and c) washing the reduced CO2 content gas in a wash column with a wash solution comprising carbonic acid formed by addition of gaseous CO2 into the wash solution. In this method, the washing removes the amines from the reduced CO2 content gas and produces a reduced amine content gas exiting from the wash column.

Inventors:
; ; ; ; ; ; ; ;
Issue Date:
Research Org.:
Research Triangle Inst., Research Triangle Park, NC (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1924981
Patent Number(s):
11413572
Application Number:
16/905,055
Assignee:
Research Triangle Institute (Research Triangle Park, NC)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
FE0026466; FE0031590
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/18/2020
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Rayer Rabindran, Aravind V., Gupta, Vijay, Mobley, Paul D., Tanthana, Jak, Zhou, Shaojun, Tobiesen, Finn Andrew, Mejdell, Thor, Grimstvedt, Andreas, and Haugen, Geir. Methods and systems for emissions control in solvent-based CO2 capture processes using CO2. United States: N. p., 2022. Web.
Rayer Rabindran, Aravind V., Gupta, Vijay, Mobley, Paul D., Tanthana, Jak, Zhou, Shaojun, Tobiesen, Finn Andrew, Mejdell, Thor, Grimstvedt, Andreas, & Haugen, Geir. Methods and systems for emissions control in solvent-based CO2 capture processes using CO2. United States.
Rayer Rabindran, Aravind V., Gupta, Vijay, Mobley, Paul D., Tanthana, Jak, Zhou, Shaojun, Tobiesen, Finn Andrew, Mejdell, Thor, Grimstvedt, Andreas, and Haugen, Geir. Tue . "Methods and systems for emissions control in solvent-based CO2 capture processes using CO2". United States. https://www.osti.gov/servlets/purl/1924981.
@article{osti_1924981,
title = {Methods and systems for emissions control in solvent-based CO2 capture processes using CO2},
author = {Rayer Rabindran, Aravind V. and Gupta, Vijay and Mobley, Paul D. and Tanthana, Jak and Zhou, Shaojun and Tobiesen, Finn Andrew and Mejdell, Thor and Grimstvedt, Andreas and Haugen, Geir},
abstractNote = {A method with corresponding systems for reducing emission of amines to the atmosphere. The method includes a a) introducing a gas containing CO2 into an absorber; b) flowing the flue gas through an absorber having an absorbent with a water-lean solution having less than 50% water and one or more amines, with the absorbent capturing the CO2 and forming a reduced CO2 content gas having a baseline CO2 content; and c) washing the reduced CO2 content gas in a wash column with a wash solution comprising carbonic acid formed by addition of gaseous CO2 into the wash solution. In this method, the washing removes the amines from the reduced CO2 content gas and produces a reduced amine content gas exiting from the wash column.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2022},
month = {8}
}

Works referenced in this record:

Regenerable solvent mixtures for acid-gas separation
patent, September 2018


Method and plant for amine emission control
patent, October 2015


Regenerable solvent mixtures for acid-gas separation
patent, December 2017


Regenerable solvent mixtures for acid-gas separation
patent, July 2017


Method for recovery of CO2 from gas streams
patent, June 2006


Method and plant for amine emission control
patent, December 2011