Deactivation control through accelerated precoking for the CoMo/y-Al2O3 catalysts in thiophene hydrodesulfurization

Information on the degree of deactivation is very important for predicting catalyst life, from which the catalyst design could be further improved. The CoMo/Al2O3 catalysts, used for the hydrodesulfurization of light oil, are known to have a commercial operation time of around two years. Our goal was to establish the accelerated pre-coking conditions for obtaining a desired degree of deactivation for CoMo/Al2O3 catalysts. The effect of coking temperature on the catalytic activity for thiophene hydrodesulfurization was investigated for three coke precursors. Pre-coking with heavier precursors resulted in higher coke content and higher aromaticity as expected, i.e., in order of anthracene>naphthalene>cyclohexene. It is suggested that the established conditions of precoking for the commercial catalysts could provide a quantitive reference for evaluating the lifetime of any commercial catalysts.
Publisher
KOREAN INSTITUTE CHEMICAL ENGINEERS
Issue Date
2003-03
Language
ENG
Keywords

RUN

Citation

KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.20, no.2, pp.284 - 287

ISSN
0256-1115
DOI
10.1007/BF02697242
URI
http://hdl.handle.net/10203/4455
Appears in Collection
CBE-Journal Papers(저널논문)
  • Hit : 579
  • Download : 2
  • Cited 0 times in thomson ci
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡClick to seewebofscience_button
⊙ Cited 9 items in WoSClick to see citing articles inrecords_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0