Document type
Conference papers
Document subtype
Poster without full or short paper
Title
ILGERANTS - New Ionic Liquids Based Mixtures for Absorption Refrigeration
Participants in the publication
Miguel V.R. Silva (Author)
Ana F. Cristino (Author)
Xavier Paredes (Author)
Carla S.G.P. Queirós (Author)
Ana Raquel P. Gonçalves (Author)
Fernando J.V. Santos (Author)
Carlos A. Nieto de Castro (Author)
Dep. Química e Bioquímica
CQE
Summary
Working fluid properties are key factors in the design and performance of heat exchangers for chemical process design, in general, and particularly for absorption refrigeration technologies [1,2]. Conventional working pairs like aqueous solutions of lithium bromide or ammonia have problems of crystallization, corrosion and toxicity. Ionic liquids are excellent candidates as absorbents for absorption systems, as they have great solvent character, good thermal stability and very low vapor pressure [2-5]. Most of the IL-based working pairs suggested in the literature have not met so far, the industrial requirements. Reliable property data and models to predict thermodynamic data of multicomponent systems and transport properties such as diffusion coefficient, viscosity and thermal conductivity are needed. \nThe project ILGerants aims to contribute to the definition of new refrigeration mixtures based on ionic liquids, through the study of thermophysical properties, toxicity, biodegradability and coefficients of performance (COP) in absorption cycles, in order to be technically, economically and environmentally acceptable as an alternative to the fluids currently being used by the industry. In this work, the progress of the project will be presented as well as a critical interpretation on how calculations of the COP may affect the choice of a fluid, suitable for this purpose. \n\nReferences\n[1] J.P.M. França, C.A. Nieto de Castro, M.L.M. Lopes, V.M.B. Nunes, “The Influence of Thermophysical Properties of Ionic Liquids in Chemical Process Design”, J. Chem. Eng. Data, 54 (2009) 2569-2575\n [2] D. Zheng, L. Dong, W. Huang, X. Wu, N. Nie, “A Review of Imidazolium Ionic Liquids Research and Development Towards Working Pair of Absorption Cycle”, Renew. Sustain. Energy Rev., 37 (2014) 47-68\n[3] M. Earle, K. Seddon, “Ionic Liquids. Green Solvents for the Future”, Pure Appl. Chem, 72 (2000) 1391-1398\n[4] K.A. Kurnia, S.P. Pinho, J.A.P. Coutinho, “Designing Ionic Liquids for Absorptive Cooling”, Green Chem. 16 (2014) 3741–3745\n[5] M. Seiler, A. Kuhn, F. Ziegler, X. Wang, “Sustainable Cooling Strategies Using New Chemical System Solutions”, Ind. Eng. Chem. Res, 53 (2013) 16519-16546
Date of Publication
2019-11-04
Institution
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
Event
ILMAT V, 5th International Conference on Ionic Liquid-based Materials, Paris, 4-8 November, 2019
Publication Identifiers
Address
Paris, France
Organizers
Mireille Turmine
Publisher
Sorbonne Université
Number of pages
1
Starting page
143
Keywords
ionic liquids
absorption refrigeration
industrial applications