Selective absorption of gases by ionic liquids based on carboxylate anions or tris (pentafluoroethyl) trifluorophosphate anions
type: Distribution
access URL: https://theses.hal.science/tel-00822155
format: HTML
issued: 2026-05-11T03:18:13.728050
modified: 2026-05-11T03:18:13.702284

test_moissonnage_selune
type: Agent

Selective absorption of gases by ionic liquids based on carboxylate anions or tris (pentafluoroethyl) trifluorophosphate anions
type: Dataset
contact point: Organization
  fn: CCSD
keyword: mechanisms-of-solvation
keyword: absorption
keyword: carbon-dioxide
keyword: liquides-ioniques
keyword: theses
keyword: thermophysical-properties
keyword: chimothechemical-sciencesother
keyword: infoeu-reposemanticsdoctoralthesis
keyword: ionic-liquid
keyword: proprietes-thermophysiques
keyword: gas-capture
keyword: mecanismes-de-solvatation
keyword: dioxyde-de-carbone
keyword: captage-de-gaz
landing page: https://theses.hal.science/tel-00822155
description: Different classes of ionic liquids have been selected for their ability to solubilize gases and more particularly carbon dioxide. The objective of this work is to define the ionic liquids which are most likely to be used as alternative absorbents in capture processes of gases, the main issue is to reduce the costs of production of the industrial processes. The systems used are the pure ionic liquids from the combination of imidazolium, phosphonium and pyrrolidinium cation with carboxylate or tris (pentafluoroethyl) trifluorophosphate anion and binary mixtures of ionic liquids with carboxylate anion + water. The absorption of different gases - carbon dioxide, nitrogen, nitrous oxide and ethane – in pure ionic liquids as well as in mixtures of ionic liquid + water was measured in a temperature range of between 303.15 and 353.15 K and pressures close to atmospheric. The selectivity of ionic liquids for the absorption of carbon dioxide from other gases could was determined. Characterization of gas absorption is a function of the studied system, since the interactions between gas and ionic liquid (or mixture ionic liquid + water) are of the physical type for some systems, while in other, the absorption is the result of both physical interaction and chemical reaction.
identifier: NNT: 2012CLF22294
issued: 2026-05-11T03:18:13.725493
language: fr
modified: 2026-05-11T03:18:13.725497