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Role of Solvents in CO2 Capture Processes : the Review of Selection and Design Methods

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Role of Solvents in CO2 Capture Processes : the Review of Selection and Design Methods This is a repository copy of Role of solvents in CO2 capture processes : the review of selection and design methods. White Rose Research Online URL for this paper: http://eprints.whiterose.ac.uk/151055/ Version: Accepted Version Article: N.Borhani, T. and Wang, M. orcid.org/0000-0001-9752-270X (2019) Role of solvents in CO2 capture processes : the review of selection and design methods. Renewable and Sustainable Energy Reviews, 114. ISSN 1364-0321 https://doi.org/10.1016/j.rser.2019.109299 Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/). Reuse This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs (CC BY-NC-ND) licence. This licence only allows you to download this work and share it with others as long as you credit the authors, but you can’t change the article in any way or use it commercially. More information and the full terms of the licence here: https://creativecommons.org/licenses/ Takedown If you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing [email protected] including the URL of the record and the reason for the withdrawal request. [email protected] https://eprints.whiterose.ac.uk/ Role of solvents in CO2 capture processes: the review of selection and design methods Tohid N.Borhania and Meihong Wanga a Department of Chemical and Biological Engineering, The University of Sheffield, Sheffield S1 3JD, UK Abstract Solvent selection and design are imperative in the CO2 capture process. The efficiency and the overall cost of the process are directly affected by the solvent as a consequence of the effect of solvent on factors such as CO2 absorption capacity, size of equipment, and solvent regeneration energy. This review paper aims to review the most important solvents and mixtures of solvents, absorbing CO2 via chemisorption, physisorption and chemi-physisoprtion. Characteristic and structure of different solvents are presented with the advantages and disadvantages of each being highlighted. Mixtures of solvents include chemical or physical solvents only, and combinations of physical and chemical solvents are categorised. In addition to common solvents, phase change solvents are also described. Once a comprehensive list of solvents is presented, different methods of solvent selection and design are illustrated, namely methods involving experiments, process and equilibrium models, predictive models, and computer-aided molecular design (CAMD). The importance of integrated solvent and process selection and design is also discussed. The most recent and selected progress studies in each section are reviewed in detail. Keywords: CO2 capture, physical solvents, chemical solvents, mixture solvents, solvent selection and design, integrated solvent and process design, CAMD. Table of Contents 1 Introduction ..................................................................................................................................... 3 1.1 Motivation of the study ........................................................................................................... 4 1.2 Objectives of the study ............................................................................................................ 5 1.3 Outline of the paper ................................................................................................................ 5 2 Available solvents ........................................................................................................................... 5 2.1 Chemical solvents ................................................................................................................... 6 2.1.1 Amines ............................................................................................................................ 6 2.1.2 Ammonia ......................................................................................................................... 7 2.1.3 Salt solutions ................................................................................................................... 8 2.2 Physical solvents ................................................................................................................... 11 = corresponding author details, [email protected] 1 2.2.1 Dimethyl Ether of Polyethylene Glycols (DEPG or DMEPEG) ................................... 11 2.2.2 Methanol ....................................................................................................................... 12 2.2.3 Polyethylene glycol methyl isopropyl ethers (MPE) .................................................... 12 2.2.4 Propylene carbonate ...................................................................................................... 12 2.2.5 N-Methyl 2Pyrrolidone (NMP) ..................................................................................... 13 2.2.6 Glycerol ......................................................................................................................... 13 2.2.7 Sulfolane ....................................................................................................................... 13 2.3 Physical-Chemical solvents .................................................................................................. 14 2.3.1 Room Temperature ILs (RTILs) ................................................................................... 14 2.3.2 Task Specific ILs (TSILs) ............................................................................................. 15 2.3.3 Reversible ILs (RILs) .................................................................................................... 15 2.3.4 Deep Eutectic Solvents (DESs) ..................................................................................... 15 2.4 Mixture of solvents ............................................................................................................... 15 2.4.1 Mixture of chemical solvents ........................................................................................ 15 2.4.2 Mixture of physical and chemical solvents ................................................................... 18 2.4.3 Mixture of physical solvents ......................................................................................... 20 3 Criteria to select and design of solvents ........................................................................................ 21 3.1 Chemical solvents ................................................................................................................. 21 3.2 Physical solvents ................................................................................................................... 21 4 Selection and design of solvents using experiments ..................................................................... 21 4.1 Description of method ........................................................................................................... 21 4.2 Advantages and disadvantages of the method ...................................................................... 22 4.3 Review of related studies ...................................................................................................... 22 5 Selection and design of solvents using process and equilibrium models ...................................... 23 5.1 Description of method ........................................................................................................... 23 5.2 Advantages and disadvantages of the method ...................................................................... 23 5.3 Review of related studies ...................................................................................................... 23 6 Selection and design of solvents using predictive models ............................................................ 24 6.1 Description of method ........................................................................................................... 24 6.2 Advantages and disadvantages of the method ...................................................................... 24 6.3 Review of related studies ...................................................................................................... 25 6.3.1 Group contribution models applications ....................................................................... 25 2 6.3.2 Computational chemistry models applications ............................................................. 25 6.3.3 Chemometric model applications .................................................................................. 25 7 Selection and design of solvents using CAMD problem .............................................................. 26 7.1 Description of method ........................................................................................................... 26 7.1.1 Generate and search (test) approach ............................................................................. 26 7.1.2 Algebraic modelling approach ...................................................................................... 26 7.1.3 Mathematical optimization approach ............................................................................ 26 7.2 Advantages and disadvantages of the method ...................................................................... 27 7.3 Review of related studies .....................................................................................................
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