Effects of nitrogen and refractory sulfur species removal on the deep HDS of gas oil

Yosuke Sano, Ki Hyouk Choi, Yozo Korai, Isao Mochida

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

The present study confirmed that the removal of both nitrogen and refractory sulfur species in the gas oil was very effective to achieve its sulfur level of less than 10ppm by the conventional HDS over CoMoS/silica-alumina catalyst. The sulfur content in HDS product was governed by the nitrogen species in feed oil when its content was more than 60ppm whereas it reflected the content of the refractory sulfur as well as that of nitrogen species in feed oil when that of nitrogen species in feed oil was less than 60ppm. Langmuir-Hinshelwood type equation was assumed to describe the contribution of nitrogen and refractory sulfur species to the achievable sulfur level of HDS. The inhibiting terms included in the equation were estimated to 0.75 order of the initial content of nitrogen and first order of refractory sulfur species, respectively. Thus the achievable sulfur level of HDS product from feeds with different content of nitrogen and refractory sulfur species is calculated by the equation.

Original languageEnglish
Pages (from-to)169-174
Number of pages6
JournalApplied Catalysis B: Environmental
Volume53
Issue number3
DOIs
Publication statusPublished - Nov 8 2004

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

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