Effect of silicon content on active catalytic phase for hydrocracking of heavy crude oils
The silicon composition effect on acidic properties of Ni[sbond]Mo catalysts was investigated for hydrocracking reaction, where an optimal Si and Al ratio is required for the formation of Brønsted acid sites and as well as of Al 3+ (IV) tetrahedral coordinated sites. The support composition affects...
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Published in | Petroleum science and technology Vol. 38; no. 2; pp. 91 - 97 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Abingdon
Taylor & Francis
17.01.2020
Taylor & Francis Ltd |
Subjects | |
Online Access | Get full text |
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Summary: | The silicon composition effect on acidic properties of Ni[sbond]Mo catalysts was investigated for hydrocracking reaction, where an optimal Si and Al ratio is required for the formation of Brønsted acid sites and as well as of Al
3+
(IV) tetrahedral coordinated sites. The support composition affects the Si[sbond]OH[sbond]Al network, where cations (Al
3+
or Si
4+
) have a coordination number of IV generating higher Brønsted acidity and macro-pores. The supports and fresh catalysts were characterized by atomic absorption, nitrogen physisorption, FT-IR of CO and pyridine adsorption and
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Al MAS NMR. |
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ISSN: | 1091-6466 1532-2459 |
DOI: | 10.1080/10916466.2019.1671865 |