Gas solubility and rheological behavior study of betaine and alanine based natural deep eutectic solvents (NADES)

Tausif Altamash, Mustafa S. Nasser, Yousef Elhamarnah, Musaab Magzoub, Ruh Ullah, Hazim Qiblawey, Santiago Aparicio, Mert Atilhan

Research output: Contribution to journalArticlepeer-review

82 Citations (Scopus)

Abstract

Natural deep eutectic solvent (NADES) produced herein this work by mixing betaine and alanine with lactic acid and malic acid with 1:1 M mixing ratios. Thermophysical properties including water content, thermal stability, density and gas solubility of CO2 and N2 were experimented at different isotherms for wide pressures range up to 50 bars. Moreover, detailed rheological experiments were conducted on the studied materials to obtain viscosity and deduce the dynamic flow behavior. A pressure driven physisorption mechanism was observed for the studied systems. Betaine based NADES materials showed superior carbon dioxide and nitrogen solubility when they are mixed with lactic acid. On the other hand, the rheological experimental results show shear-thinning effect in which the η is decreasing with shear rate at all temperatures. Low viscosity profiles NADES assure the less mass transfer resistance for lactic acid based NADES systems and it also confirmed that the high CO2 and N2 solubility for lactic acid based NADES samples.

Original languageEnglish
Pages (from-to)286-295
Number of pages10
JournalJournal of Molecular Liquids
Volume256
DOIs
Publication statusPublished - Apr 15 2018
Externally publishedYes

Keywords

  • Deep eutectic solvents
  • Gas solubility
  • Natural products
  • Rheology

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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