Effect of hydrogen reduction and palladium promotion of tungstate-modified zirconia on isomerization of heptane

Mikhail D. Smolikov,Violetta A. Shkurenok, Liliya I. Bikmetova,Igor P. Prosvirin,Tatyana I. Gulyaeva, Andrey V. Bukhtiyarov,Evgeny A. Paukshtis,Valery I. Bukhtiyarov,Alexander V. Lavrenov

Molecular Catalysis（2022）

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摘要

•There are two types of LAS on the Pd/WZ surface with different origin.•H2-reduction of Pd/WZ above 300 °C forms of additional LAS, which include W5+ atoms.•Pd additions into catalysts enhance their acidity by forming new Lewis acid sites.•This type of LAS is responsible for high selectivity of heptane isomerization.

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关键词

Isomerization,Heptane,Tungstated zirconia,Palladium

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