A comparative review between amines and ammonia as sorptive media for post-combustion CO2 capture

Title
A comparative review between amines and ammonia as sorptive media for post-combustion CO2 capture
Authors
박재우
Keywords
CO2 capture; Amine; Ammonia; Global warming; Greenhouse gas
Issue Date
2015-06
Publisher
ELSEVIER SCI LTD
Citation
APPLIED ENERGY, v. 148, Page. 10-22
Abstract
In recent decades, the accelerating economic and social developments have led to exponentially increasing emissions of carbon dioxide (CO2) into the atmosphere. As a result, much research efforts have been directed toward more effective measures for the carbon capture and storage (CCS). In this review, we first briefly described the general background on the various techniques available for the abatement of CO2 emissions worldwide. Then, we provided an in-depth discussion regarding the two comparable control technologies, i.e., the amine- vs. ammonia-based capture approaches; ammonia has lower energy costs than monoethanolamine (MEA). The applicability of each method was described further with an emphasis on their advantages and disadvantages. We also briefly discussed the available options for post-absorption processing such as recovery of absorbed CO2, compression, and storage. Many immobilized amines as adsorbents can only be regenerated a few times or are a 'once-through process'. This may deplete the global supply of those materials if CCS is scaled up in excess of Mton CO2 captured per year. Ideally, the captured CO2 should be isolated from the atmosphere indefinitely and/or photochemically reduced (either biologically or industrially). Finally, we explored future challenges in this field of study to envision and suggest more optimized solutions. (C) 2015 Elsevier Ltd. All rights reserved.
URI
http://www.sciencedirect.com/science/article/pii/S0306261915003104http://hdl.handle.net/20.500.11754/25570
ISSN
0306-2619; 1872-9118; 10.1016/j.apenergy.2015.03.026
DOI
http://dx.doi.org/10.1016/j.apenergy.2015.03.026
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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