Desulfurization of Jet-A fuel in a fixed-bed reactor at room temperature and ambient pressure using a novel selective adsorbent

Xinhai Xu, Shuyang Zhang, Peiwen Li, Yuesong Shen

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

The adsorptive desulfurization of Jet-A fuel (with sulfur concentrations above 1000 ppmw) using a novel, low-cost adsorbent, 10NiO-CeO 2/7.5Al2O3-SiO2 was investigated in fixed-bed tests. The desulfurization was designated to operate at room temperature and ambient pressure. The flow rate of fuel, size of adsorbent particles, and dimensions of an adsorbent-packed fixed-bed were optimized to obtain a high sulfur adsorption capacity per unit mass of adsorbent. At a breakthrough sulfur concentration of 10 ppmw a very high sulfur adsorption capacity of 0.633 mg S/g adsorbent was achieved. At a mean sulfur concentration of 30 ppmw in the treated accumulated fuel, the best capacity achieved is 1.98 mg S/g adsorbent. The scaling-up strategies for the fixed-bed reactor and the method for adsorbent regeneration are also investigated. Finally, preliminary tests of adsorbent regeneration showed that the first-time regenerated adsorbent could recover 83% of the sulfur removal capacity compared to a fresh adsorbent, and a second time regeneration could recover 50.4% of that of fresh adsorbent.

Original languageEnglish (US)
Pages (from-to)499-508
Number of pages10
JournalFuel
Volume117
Issue numberPART A
DOIs
StatePublished - 2014

Keywords

  • Desulfurization
  • Fixed-bed test
  • Jet-A fuel
  • Novel adsorbent NiO-CeO/Al O-SiO
  • Room temperature

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Organic Chemistry

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