Rapid Screening of Immobilized Amine CO2 Sorbents for Steam Stability by Their Direct Contact with Liquid H2 O

Rapid testing of hydrophilic and hydrophobic basic immobilized amine sorbents (BIAS) for CO2 capture stability under practical conditions was achieved by direct contact of the sorbents with flowing liquid water. Losses in both CO2 capture capacity and amine content of sorbents after exposure to 0.5...

Full description

Saved in:
Bibliographic Details
Published in:ChemSusChem 2015-06, Vol.8 (12), p.2041-2045
Main Authors: Wilfong, Walter Christopher, Kail, Brian W, Gray, McMahan L
Format: Article
Language:English
Subjects:
Adsorption
Amines - chemistry
Carbon Dioxide - chemistry
Carbon Dioxide - isolation & purification
Hydrophobic and Hydrophilic Interactions
Steam
Time Factors
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Rapid testing of hydrophilic and hydrophobic basic immobilized amine sorbents (BIAS) for CO2 capture stability under practical conditions was achieved by direct contact of the sorbents with flowing liquid water. Losses in both CO2 capture capacity and amine content of sorbents after exposure to 0.5 mL min(-1) of H2 O at 25 °C for 40 min followed similar trends as losses observed after exposure to N2 /steam (105 °C, 7 % H2 O) for 10 h. We also found that hydrophobic TMPED helped stabilize sorbents to H2 O, which was confirmed by DRIFTS and combined TGA-DSC.
ISSN:1864-564X
DOI:10.1002/cssc.201500189