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Oxidative dehydrogenation of isobutane on supported chromia catalysts

✍ Scribed by R. Grabowski; B. Grzybowska; J. Słczyński; K. Wcisło

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
320 KB
Volume
144
Category
Article
ISSN
0926-860X

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✦ Synopsis

Oxidative dehydrogenation, ODH, of isobutane has been performed on chromia supported on SiO 2, A1203, TiO 2, ZrO 2 and MgO. The potassium promoted (K/Cr = 0.1) catalysts have also been examined. The supported chromia has been found active in the ODH of isobutane at relatively low temperatures 200-400°C, the total activity and selectivity to isobutene depending on the nature of the support and the potassium presence. The highest selectivities to isobutene (ca. 70% at 5% conversion) and the isobutene yields of ca. 9% have been obtained for CrO,./TiO 2 and K-promoted CrQ./AI203 preparations.

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