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Oxidative desulfurization of synthetic diesel using vanadium based catalysts

Fabiś G., Czajkowska S.

Polish Journal of Applied Chemistry

2011

Vol. 55, nr 3-4

151-157

Oxidative desulfurization (ODS) of synthetic diesel was carried out at mild conditions (at atmospheric pressure and temperature of 80 °C) in the presence of V1O5/AI2O3 and V-MCM-41 catalysts, using hydrogen peroxide (H1O2) or rm-butyl hydroperoxide (TBPH) as an oxidant. Obtained results show that removal of benzothiophenic compounds is more effective in the presence of TBHP. Moreover, it has been observed that conversion of sulfur compounds is not a function of textural properties of the catalysts.

Oxidative desulfurization of synthetic diesel oil by oxidation/adsorption continuous flow process

Fabiś G., Lewandowski M., Sarbak Z., Czajkowska S.

Polish Journal of Applied Chemistry

2010

Vol. 54, nr 1-4

41-48

Catalytic oxidative desulfurization (ODS) of a synthetic diesel oil was studied in the presence of metal containing (Ti. V. Nb. Ta) MCM-41 catalysts. The effects of reaction temperature, reaction time, oxidant to sulfur molar ratio and sulfur concentration on the sulfur removal were investigated. The obtained results indicated that metal containing MCM-41 type mesoporous molecular sieves are able to catalyze the continuous selective oxidation of the most refractory sulfur compounds such as 4.6-dimethyldibenzothiophene.

Vanadium-containing Mesoporous Molecular Sieves: Synthesis, Properties and Catalytic Performance in Oxidative Activation of Light Alkanes

Cortés Corberán V., Sulikowski B.

Polish Journal of Chemistry

2008

Vol. 82, nr 9

1823-1837

Vanadium-containing mesoporous molecular sieves (MMS) are quasi-crystalline solids with interesting catalytic properties in the oxidative activation of light alkanes. In the present work, the methods of their synthesis, physico-chemical properties and catalytic behaviour in the oxidative dehydrogenation and selective oxidation of C2-C4 alkanes are reviewed. It is concluded that, as with conventional supported vanadium contacts, the catalytic performance in these reactions is related to the number and environment of vanadium centres, and the best selectivity and yield are obtained over isolated vanadium sites exhibiting tetrahedral coordination.

Mezoporowate sita molekularne - otrzymywanie, właściwości, zastosowanie.

Gierczycki A., Jarzębski A.B., Mrowiec-Białoń J., Gierczycka E., Kargol M.

Archiwum Nauki o Materiałach

1999

T. 20, nr 3

145-153

Przedstawiono zasady preparatyki mezoporowatych sit molekularnych. Omówiono morfologię materiałów i metody jej charakterystyki. Wskazano na szerokie możliwości zastosowania mezoporowatych sit w kształtoselektywnej katalizie, separacji molekularnej oraz w technologiach specjalnych.

The preparation methods for mesoporous molecular sieves have been described. Structural properties and characterization methods were discussed and the prospects of application in the shape selective catalysis, molecular separation and advanced technologies were indicated .