Journal
POLYMER BULLETIN
Volume 78, Issue 2, Pages 795-812Publisher
SPRINGER
DOI: 10.1007/s00289-020-03132-4
Keywords
Adsorptive desulfurization; Dibenzothiophene; Metal-organic framework; Poly(diallyldimethylammonium) chloride
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Funding
- Nanotechnology Research Center, Urmia University, Urmia, Iran
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By comparing the performance of different adsorbents, it was found that Cloisite 30B-Cu-MOF and PDADMAC exhibited the highest efficiency in adsorption desulfurization process.
Adsorption desulfurization process is one of the most convenient and cost-effective methods to remove sulfur-containing organic pollutants from fuel liquids. In this paper, the adsorptive desulfurization of n-hexane containing 100 to 1000 ppm dibenzothiophene (DBT) as model gasoline has been evaluated using various industrially available adsorbents including Cloisite 30B, acid-treated Cloisite 30B, Cu-MOF, and Cloisite 30B-Cu-MOF. Poly(diallyldimethylammonium) chloride (PDADMAC) was used as an adsorbent in this field for the first time, and its performance was compared with the other adsorbents. Characterization of the adsorbent structure was carried out using techniques such as Fourier transform infrared, X-ray diffraction (XRD), adsorption-desorption analysis, field-emission scanning electron microscopy, and UV-visible spectrophotometer. Parameters such as adsorption capacity and the adsorbent dosage, and effect of contact time and initial concentration of DBT on the adsorption efficiency and adsorption capacity were examined, and results indicated that Cloisite 30B-Cu-MOF and PDADMAC exhibited the highest sulfur elimination.
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