Adsorptive molecular sieving of linear over branched alkanes using trianglamine host macrocycles for sustainable separation processes

B. Hua, L. O. Alimi, G. Zhang, Y. Ding, B. Moosa, W. S. Baslyman, N. M. Khashab*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The separation of high-purity linear alkanes from a mixture of linear and branched alkanes is of great importance to the oil and gas industry for the improvement of the gasoline quality. Herein, we investigate the methylene-bridged trianglamines (M-TA) as supramolecular adsorbents for the selective separation of linear alkane isomers. This selectivity depends on the host–guest complexation arising from the size matching between the trianglamines cavity and the linear guest molecules. Moreover, M-TA are highly recyclable with almost no loss of efficiency showing a promising prospect in industrial applications. We believe that the tailored design of host supramolecular entities as smart and selective recognition units for energy-intensive separations will be the preferred future approch towards environmentally friendly and sustainable processes in industrial operations.

Original languageEnglish (US)
Article number100840
JournalMaterials Today Chemistry
Volume24
DOIs
StatePublished - Jun 2022

Bibliographical note

Funding Information:
This work was supported by King Abdullah University of Science and Technology ( KAUST ).

Publisher Copyright:
© 2022 Elsevier Ltd

Keywords

  • Adsorption separation
  • Host–guest system
  • Molecular recognition
  • Supramolecular adsorbents
  • Supramolecular chemistry

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

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