Light oil type hydrocracking catalyst with composite molecular sieve as well as preparation method and application thereof
The invention discloses a light oil type hydrocracking catalyst with a composite molecular sieve. The hydrocracking catalyst comprises the composite molecular sieve consisting of a modified Y-molecular sieve and a modified ZSM-23 molecular sieve, a carrier composed of micropore aluminum oxides, and...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
20.11.2013
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a light oil type hydrocracking catalyst with a composite molecular sieve. The hydrocracking catalyst comprises the composite molecular sieve consisting of a modified Y-molecular sieve and a modified ZSM-23 molecular sieve, a carrier composed of micropore aluminum oxides, and a hydrogenation activity component composed of a VIB group metal and a VIII group metal. The hydrocracking catalyst is characterized in that the composite molecular sieve comprises the modified Y-molecular sieve and the modified ZSM-23 molecular sieve, and the Y-molecular sieve is modified and dealuminized, so that heat stability and hydrothermal stability are stably enhanced, the hydrophobicity is enhanced, the absorption and desorption properties of the molecular sieve are improved, and the catalyst achieves a high catalytic cracking property. The pore passages of the modified SM-23 molecular sieve are unobstructed, the number of the acid sites is small, the isomerism property is outstanding, and the octane value |
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Bibliography: | Application Number: CN20131312678 |