Article history: CO capture by gas–liquid absorption needs solvents able to overcome existing barriers for wide-scale Received 2 January 2016 adoption including high energy requirement, slow reaction rate, insufﬁcient CO loading capacity, sol- Received in revised form 4 February 2016 vent degradation and corrosiveness, poor selectivity or limited operating window. It is challenging if not Accepted 23 February 2016 impossible for single or blended solvents to satisfy all these requirements and reach technology readiness Available online 10 March 2016 level sufﬁcient for economically viable deployment in large-scale CO capture systems, especially in the energy sector. Therefore, innovative advanced solvent processes (ASPs) attract attention as a new tech- Keywords: nology that may overcome existing barriers in CO capture by gas–liquid absorption. Due to signiﬁcant Absorption research funding in the area of advanced solvent processes over a few recent years many new ASPs have Advanced solvent been developed. Thus this study delivers an explorative analysis of ASPs suitable for energy efﬁcient CO Energy efﬁciency capture by gas–liquid absorption. The emphasis is put on ASPs such as two immiscible liquid phases, Technological barrier Pre-evaluation of emerging technology precipitating solvents, catalysed solvents, microencapsulated solvents, liquid membrane solvents, ionic liquids, and polarity-swing-assisted solvents. The
International Journal of Greenhouse Gas Control – Elsevier
Published: Jun 1, 2016
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