Foaming of CO2-loaded amine solvents degraded thermally under stripper conditions
File(s)
Accepted version
Author(s)
Campbell, KLS
Lapidot, T
Williams, DR
Type
Journal Article
Abstract
Foaming of amine solutions remains a problem for natural gas sweetening and post-combustion carbon capture. New amine-based solutions are being developed to replace monoethanolamine (MEA). This work tested the foaminess of MEA and three alternatives (methyldiethanolamine (MDEA), 1-(2-aminoethyl)piperazine (AEPZ), and 2-amino-2-methyl-1-propanol (AMP)) before and after thermal degradation; two methods were used to describe the foaminess. Foam was only formed after thermal degradation. The first method suggests foaminess, where AEPZ > MDEA > MEA; AMP, by contrast, did not conform to this model and formed a stable foam. The second method, using liquid physical properties, found that solutions that contained more degradation products (MEA, MDEA, AMP) showed different foaminess than those that did not (i.e., changing the chemistry during degradation strongly impacts the foaminess, which is observed). The foaming of these degraded samples demonstrates complexity that cannot be replicated by simple model solutions. Therefore, this study is more representative of the foaming behavior that is observed in industrial cases.
Date Issued
2015-07-23
Date Acceptance
2015-07-23
Citation
Industrial & Engineering Chemistry Research, 2015, 54 (31), pp.7751-7755
ISSN
1520-5045
Publisher
American Chemical Society
Start Page
7751
End Page
7755
Journal / Book Title
Industrial & Engineering Chemistry Research
Volume
54
Issue
31
Copyright Statement
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Industrial & Engineering Chemistry Research, © American Chemical Society 2015, after peer review and technical editing by the publisher. To access the final edited and published work see [insert ACS Articles on Request author-directed link to Published Work, see http://dx.doi.org/10.1021/acs.iecr.5b01935
Sponsor
Department of Energy & Climate Change
Grant Number
CENRE_P46465
Subjects
Science & Technology
Technology
Engineering, Chemical
Engineering
GAS SWEETENING SOLUTIONS
Chemical Engineering
09 Engineering
03 Chemical Sciences
Publication Status
Published