Acid natural clinoptilolite: Structural properties against adsorption/separation of n-paraffins

Aramis Rivera, Tania Farías, Louis Charles de Ménorval, Giselle Autié-Castro, Hernany Yee-Madeira, José Luis Contreras, Miguel Autié-Pérez

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

The employment of an acid natural clinoptilolite (AZH-1) in the adsorption and separation of n-paraffins has been evaluated. Natural clinoptilolite, NZ, was the raw material used to prepare the sodium-exchanged clinoptilolite (AZ) starting from which the AZH-1 sample was obtained by acid treatment. The structural stability of the samples after the applied treatments was demonstrated. The nitrogen adsorption experiments indicated that the acid sample has a homogeneous porous distribution and a considerable increase in the micropore volume with respect to NZ and AZ. The employment of the inverse gas chromatography at infinite dilution (IGCID) allowed studying the adsorption and separation of n-paraffin mixtures on AZH-1. It was also confirmed that the diffusion on AZH-1 took place in an unblocked structure through the A channel of ten members with minimal interactions. The IGCID results demonstrated the capacities of the acid Cuban natural zeolite in the adsorption and separation of n-paraffin mixtures.

Original languageEnglish
Pages (from-to)220-226
Number of pages7
JournalJournal of Colloid and Interface Science
Volume360
Issue number1
DOIs
StatePublished - 1 Aug 2011

Keywords

  • Acid treatment
  • Adsorption
  • N-Paraffins
  • Natural clinoptilolite
  • Separation

Fingerprint

Dive into the research topics of 'Acid natural clinoptilolite: Structural properties against adsorption/separation of n-paraffins'. Together they form a unique fingerprint.

Cite this