Stability of properties of catalysts for butane-butene fraction oligomerization

Рахимов, М. Н.; Beloklokova, T. M.; Galimov, Zh. F.; Панкратов, А. В.

doi:10.1007/bf02694127

Cited by 3 publications

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“…For this reason, the process is not considered environmentally friendly. On the other hand, this process presents serious deactivation problems caused by the formation of high-molecular-weight oligomers on the catalyst active sites (Rakhimov et al, 1998). Therefore, one of the challenges in the oligomerization of butenes, in order to get high-octane gasoline, is the development of catalysts with high selectivity to C 8 -olefins, avoiding the formation of heavier olefinic fractions (C þ 12 ).…”

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confidence: 99%

IMPROVED SELECTIVITY TO C₈-OLEFINS FOR ISOBUTENE OLIGOMERIZATION ON NIO-W₂O₃/Al₂O₃CATALYSTS

Tzompantzi

Valverde-Herrera

Rodríguez‐González

et al. 2009

Chemical Engineering Communications

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Isobutene oligomerization on W 2 O 3 =Al 2 O 3 and NiO-W 2 O 3 =Al 2 O 3 catalysts (20 wt.% W 2 O 3 and 5 wt.% NiO) was studied. The catalysts were prepared by impregnating ammonium tungstanate and nickel nitrate on a c-alumina sol-gel support. The XRD patterns of the samples calcined at 500 C show the presence of large W 2 O 3 conglomerates on the W 2 O 3 =Al 2 O 3 sample and smaller ones on the NiO-W 2 O 3 =Al 2 O 3 catalyst. Pyridine-FT-IR absorption spectra study shows a higher acidity on the nickel-containing sample. The isobutene oligomerization was carried out in a gasphase flow reactor (50-150 C), and selectivity as high as 100% to the formation of the C ¼ 8 olefins fraction was obtained. The role of NiO coordinating the p-allyl adsorption of the olefins as well as its role to the high C ¼ 8 selectivity were discussed.

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Section: Introductionmentioning

confidence: 99%

IMPROVED SELECTIVITY TO C₈-OLEFINS FOR ISOBUTENE OLIGOMERIZATION ON NIO-W₂O₃/Al₂O₃CATALYSTS

Tzompantzi

Valverde-Herrera

Rodríguez‐González

et al. 2009

Chemical Engineering Communications

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NiO–W2O3/Al2O3 catalysts for the production of ecological gasoline: Effect of both NiO and the preparation method on the isobutene oligomerization selectivity

Tzompantzi¹,

Mantilla²,

Angel³

et al. 2009

Catalysis Today

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Heterogeneous oligomerization of light alkenes: 80 years in oil refining

et al. 2016

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Stability of properties of catalysts for butane-butene fraction oligomerization

Cited by 3 publications

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IMPROVED SELECTIVITY TO C₈-OLEFINS FOR ISOBUTENE OLIGOMERIZATION ON NIO-W₂O₃/Al₂O₃CATALYSTS

IMPROVED SELECTIVITY TO C₈-OLEFINS FOR ISOBUTENE OLIGOMERIZATION ON NIO-W₂O₃/Al₂O₃CATALYSTS

NiO–W2O3/Al2O3 catalysts for the production of ecological gasoline: Effect of both NiO and the preparation method on the isobutene oligomerization selectivity

Heterogeneous oligomerization of light alkenes: 80 years in oil refining

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Stability of properties of catalysts for butane-butene fraction oligomerization

Cited by 3 publications

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IMPROVED SELECTIVITY TO C8-OLEFINS FOR ISOBUTENE OLIGOMERIZATION ON NIO-W2O3/Al2O3CATALYSTS

IMPROVED SELECTIVITY TO C8-OLEFINS FOR ISOBUTENE OLIGOMERIZATION ON NIO-W2O3/Al2O3CATALYSTS

NiO–W2O3/Al2O3 catalysts for the production of ecological gasoline: Effect of both NiO and the preparation method on the isobutene oligomerization selectivity

Heterogeneous oligomerization of light alkenes: 80 years in oil refining

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IMPROVED SELECTIVITY TO C₈-OLEFINS FOR ISOBUTENE OLIGOMERIZATION ON NIO-W₂O₃/Al₂O₃CATALYSTS

IMPROVED SELECTIVITY TO C₈-OLEFINS FOR ISOBUTENE OLIGOMERIZATION ON NIO-W₂O₃/Al₂O₃CATALYSTS