SnO x -Impregnated Clinoptilolite for Efficient Mercury Removal from Liquid Hydrocarbon

Eny Kusrini, Anwar Usman, Jaka Wibowo

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The present study investigates SnO x -impregnated clinoptilolite, which is zeolite belonging to the heulandite family, for developing efficient adsorbent for mercury removal from liquid hydrocarbon. Adsorption experiments were carried out in batch method, and the effects of adsorbent dosage and contact time on the adsorption properties of mercury were investigated. We demonstrated that the SnO x -impregnated clinoptilolite removed the mercury from liquid hydrocarbon with high efficiency, where the maximum capacity was 0.93 ng/g, higher compared with the natural clinoptilolite (0.43 ng/g). Structure and morphology analysis also showed that SnO x was coated on the surface of clinoptilolite, resulting in rougher surface and smaller pore size and volume than those of natural clinoptilolite. Speciation of mercury indicated that the most removed species was organomercury (67.3%), and its removal efficiency increased with the adsorbent dosage. The isotherm analysis revealed that adsorption mechanism was governed by pseudo-second-order kinetics, indicating that the adsorption was a chemical adsorption process due to electrostatic attractions. This finding suggested that clinoptilolite/SnO x was promising adsorbents for organomercury removal from liquid hydrocarbon.

Original languageEnglish
Pages (from-to)189-197
Number of pages9
JournalArabian Journal for Science and Engineering
Volume44
Issue number1
DOIs
Publication statusPublished - 24 Jan 2019

Keywords

  • Adsorption
  • Clinoptilolite
  • Liquid hydrocarbon
  • Organomercury
  • SnO impregnation

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