Selective desulphurization and denitrogenation of hydrocarbon mixtures rich in olefins

Jen Hancsók, Zsolt Szoboszlai, Tamás Kasza, András Holló, Arthur Thernesz, Dénes Kalló

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Selective desulphurization and denitrogenation of hydrocarbon mixtures rich in olefins (FCC-, pyrolysis- and coker naphtha) were investigated over three different catalysts (conventional and new generation CoMo/Al2O 3, Pt(0.1%)Pd(0.3%)/USY). According to the experiments carried out in a wide range of operation parameters it was concluded that the sulphur removal efficiency of the PtPd/USY approximately equals to that of the new generation CoMo/Al2O3 up to about 200 mg/kg sulphur and 35 mg/kg nitrogen content, but the octane number loss is lower and the nitrogen removing efficiency is significantly better (nearly 100%) as well, than in case of the previous catalyst. In case of feedstock having higher sulphur and nitrogen content, the utilisation of CoMo/Al2O3 together with PtPd/USY in one reactor enables the production of very low sulphur (<5 mg/kg) and nitrogen (<2 mg/kg) containing products with low octane number loss.

Original languageEnglish
Pages (from-to)177-181
Number of pages5
JournalCatalysis Today
Volume176
Issue number1
DOIs
Publication statusPublished - Nov 1 2011

Keywords

  • CoMo/AlO
  • Denitrogenation
  • Hydrocarbon mixture
  • Olefins
  • PtPd/USY
  • Selective desulphurization

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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