Activity of a Sulfated Zirconia Catalyst in Isomerization of <italic>n</italic>-Butane Fractions: Fid-Bau Portal

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Activity of a Sulfated Zirconia Catalyst in Isomerization of n-Butane Fractions

Echevskii, G. V. / Aksenov, D. G. / Kodenev, E. G. / Ovchinnikova, E. V. / Chumachenko, V. A.

Palladium-containing catalyst based on binder-free granular sulfated zirconium oxide for n-butane isomerization has been investigated. It has been found that Pd content of 0.2–1.0 wt % slightly influences textural characteristics and other physicochemical properties of bifunctional catalysts; however, it determines their activity and selectivity in the reaction studied, with the optimal palladium content being 0.5 wt %. Parameters of the isomerization process have been studied depending on the composition of industrial n-butane fractions. It has been shown that impurities of isobutane, propane, neopentane, isopentane and pentane in an amount of no more than 2% do not exert a effect on isobutane production; nonetheless, the conversion of n-butane and selectivity for isobutane both increase when more pure n-butane fractions are used. It has been found that the process for isobutane production by isomerization of the n-butane fraction under the optimal conditions at H₂ /n-C₄ = 0.1 and 140–150°C makes it possible to obtain a high isobutane yield (up to 52 wt %) and avoid the undue formation of С₁–С₃ alkanes.

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Activity of a Sulfated Zirconia Catalyst in Isomerization of n-Butane Fractions

Echevskii, G. V. / Aksenov, D. G. / Kodenev, E. G. / Ovchinnikova, E. V. / Chumachenko, V. A.

Palladium-containing catalyst based on binder-free granular sulfated zirconium oxide for n-butane isomerization has been investigated. It has been found that Pd content of 0.2–1.0 wt % slightly influences textural characteristics and other physicochemical properties of bifunctional catalysts; however, it determines their activity and selectivity in the reaction studied, with the optimal palladium content being 0.5 wt %. Parameters of the isomerization process have been studied depending on the composition of industrial n-butane fractions. It has been shown that impurities of isobutane, propane, neopentane, isopentane and pentane in an amount of no more than 2% do not exert a effect on isobutane production; nonetheless, the conversion of n-butane and selectivity for isobutane both increase when more pure n-butane fractions are used. It has been found that the process for isobutane production by isomerization of the n-butane fraction under the optimal conditions at H₂ /n-C₄ = 0.1 and 140–150°C makes it possible to obtain a high isobutane yield (up to 52 wt %) and avoid the undue formation of С₁–С₃ alkanes.

Activity of a Sulfated Zirconia Catalyst in Isomerization of n-Butane Fractions

Echevskii, G. V. / Aksenov, D. G. / Kodenev, E. G. / Ovchinnikova, E. V. / Chumachenko, V. A.

Palladium-containing catalyst based on binder-free granular sulfated zirconium oxide for n-butane isomerization has been investigated. It has been found that Pd content of 0.2–1.0 wt % slightly influences textural characteristics and other physicochemical properties of bifunctional catalysts; however, it determines their activity and selectivity in the reaction studied, with the optimal palladium content being 0.5 wt %. Parameters of the isomerization process have been studied depending on the composition of industrial n-butane fractions. It has been shown that impurities of isobutane, propane, neopentane, isopentane and pentane in an amount of no more than 2% do not exert a effect on isobutane production; nonetheless, the conversion of n-butane and selectivity for isobutane both increase when more pure n-butane fractions are used. It has been found that the process for isobutane production by isomerization of the n-butane fraction under the optimal conditions at H₂ /n-C₄ = 0.1 and 140–150°C makes it possible to obtain a high isobutane yield (up to 52 wt %) and avoid the undue formation of С₁–С₃ alkanes.

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Title:

Activity of a Sulfated Zirconia Catalyst in Isomerization of n-Butane Fractions

Additional title:

Pet. Chem.

Contributors:

Echevskii, G. V. (author) / Aksenov, D. G. (author) / Kodenev, E. G. (author) / Ovchinnikova, E. V. (author) / Chumachenko, V. A. (author)

Published in:

Petroleum Chemistry ; 59 ; S101-S107

Publication date:

2019-12-01

ISSN:

1555-6239 , 0965-5441

DOI:

https://doi.org/10.1134/S0965544119130048

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

sulfated zirconia , palladium , low-temperature isomerization , <italic>n</italic>-butane , isobutane , bifunctional catalyst Chemistry , Industrial Chemistry/Chemical Engineering , Chemistry and Materials Science

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