n-hydrocarbons conversions over metal-modified solid acid catalysts

被引:0
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作者
A. Zarubica
M. Ranđelović
M. Momčilović
N. Radulović
P. Putanov
机构
[1] University of Niš,Faculty of Science and Mathematics
[2] University of Belgrade,“Vinča” Institute of Nuclear Sciences
[3] Serbian Academy of Sciences and Arts,undefined
关键词
isomerization; metal; -hydrocarbons conversions; solid acids catalysts;
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摘要
The quality of a straight-run fuel oil can be improved if saturated n-hydrocarbons of low octane number are converted to their branched counterparts. Poor reactivity of traditional catalysts in isomerization reactions imposed the need for the development of new catalysts among which noble metal promoted acid catalysts, liquid and/or solid acid catalysts take a prominent place. Sulfated zirconia and metal promoted sulfated zirconia exhibit high activity for the isomerization of light alkanes at low temperatures. The present paper highlights the original results which indicate that the modification of sulfated zirconia by incorporation of metals (platinum and rhenium) significantly affects catalytic performances in n-hydrocarbon conversion reactions. Favourable activity/selectivity of the promoted sulfated zirconia depends on the crystal phase composition, critical crystallites sizes, platinum dispersion, total acidity and type of acidity. Attention is also paid to the recently developed solid acid catalysts used in other conversion reactions of hydrocarbons.
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页码:2166 / 2175
页数:9
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