New Gas-Phase Catalytic Oxidative Processes for Desulfurization of Diesel Fuel

Authors

  • Z. R. Ismagilov Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia Institute of Coal Chemistry and Material Science SB RAS, pr. Sovetskiy 18, 650000 Kemerovo, Russia
  • M. A. Kerzhentsev Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia,
  • S. A. Yashnik Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
  • S. R. Khairulin Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
  • A. V. Salnikov Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
  • V. N. Parmon Boreskov Institute of Catalysis SB RAS, pr. Akademika Lavrentieva 5, 630090 Novosibirsk, Russia
  • A. Bourane Saudi Aramco Research and Development Center, Bldg. 9172, Dhahran, 31311, Saudi Arabia
  • O. R. Koseoglu Saudi Aramco Research and Development Center, Bldg. 9172, Dhahran, 31311, Saudi Arabia

DOI:

https://doi.org/10.18321/ectj202

Abstract

An effective gas-phase oxidative desulfurization (ODS) process was proposed. The process was studied in a laboratory reactor with a proprietary catalyst at 300-400 ºС and ambient pressure with model fuels represented by thiophene, dibenzothiophene(DBT) and 4,6-dimethyldibenzothiophene (DMDBT) dissolved in octane, isooctane or toluene. The reactivity of different sulfur containing molecules in ODS was shown to increase in the sequence: thiophene<DBT<DMDBT. The main sulfur containing product of oxidation of these compounds was SO2. During the gas-phase ODS both processes of sulfur species oxidation and processes of their adsorption were observed and studied. Based on the conducted studies, different ODS process designs comprising its integration with adsorption and regeneration processes and with conventional hydrodesulfurization (HDS) process were proposed. One scheme is based on alternating regimes of ODS and catalyst regeneration in two reactors: sulfur is removed from organic feedstock by oxidation and adsorption in one reactor while simultaneous regeneration of the catalyst that has accumulated sulfur compounds takes place in another reactor. Two other schemes are based on joint use of ODS and HDS. The conventional HDS process is most effective for removal of low-boiling sulfur containing compounds reactive with respect to hydrogen, while removal of refractory sulfur compounds, such as DMDBT is more easily achieved by gas phase ODS. Thus the combination of these processes is expected to be most efficient for deep desulfurization of diesel fuel.

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Published

2015-04-10

How to Cite

Ismagilov, Z. R., Kerzhentsev, M. A., Yashnik, S. A., Khairulin, S. R., Salnikov, A. V., Parmon, V. N., … Koseoglu, O. R. (2015). New Gas-Phase Catalytic Oxidative Processes for Desulfurization of Diesel Fuel. Eurasian Chemico-Technological Journal, 17(2), 119–128. https://doi.org/10.18321/ectj202

Issue

Vol. 17 No. 2 (2015)

Section

Articles

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