Catalytic coprocessing of delayed coker light naphtha with light straight-run naphtha/FCC gasoline

A. Lengyel, S. Magyar, D. Kalló, J. Hancsók

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Upgrading of delayed coker light naphtha (DCLN) is difficult due to its high diolefin and silicon content. Mixtures of light straight-run naphtha (LSRN) and DCLN fractions were hydrotreated in two stages over NiMo/Al 2O3 and CoMo/Al2O3 catalysts (diolefin saturation followed by hydrodesulphurization (HDS). Naphtha fractions free of diolefins, olefins, sulfur, and silicon were produced, which are excellent feeds for naphtha isomerization. One-stage selective HDS tests were also conducted with blends of DCLN (up to 5 vol%) and fluid catalytic cracked (FCC) gasoline over CoMo/Al2O3. Diolefin-free products of 10 mg/kg sulfur could be produced with a research octene number (RON) loss of max. 3.

Original languageEnglish
Pages (from-to)946-954
Number of pages9
JournalPetroleum Science and Technology
Volume28
Issue number9
DOIs
Publication statusPublished - Jun 1 2010

Keywords

  • Coprocessing
  • Delayed coker light naphtha
  • FCC gasoline
  • Selective hydrodesulphurization

ASJC Scopus subject areas

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

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