China University of Petroleum

Lixia Dong

Liang Zhao

Chunming Xu

Jinsen Gao

Yuhao Zhang

Butian Xia

Jingye Chen

Tianzhen Hao

Xiaoqin Wang

Di Gao

Xiaoyu Wu

Liyuan Cao

Provided are an in situ bifunctional catalyst for deep desulfurization and increasing octane number of gasoline, and its preparation method and application. The bifunctional catalyst includes a modified catalyst carrier and a loaded active metal, where the modified catalyst carrier is a composite carrier prepared through mixing γ-AlOand an acidic molecular sieve by a binder and calcining. When the bifunctional catalyst provided by the present application is used for hydrodesulfurization of gasolines, deep desulfurization, olefin reduction and octane number preservation can be realized simultaneously, thereby obtaining a high-quality oil product.

In situ bifunctional catalyst for deep desulfurization and increasing octane number of gasoline and preparation method thereof

Provided are a bifunctional catalyst for deep desulfurization and gasoline quality improvement and a preparation method therefore and a use thereof. The bifunctional catalyst includes a modified catalyst and a loaded active metal, where the modified catalyst carrier is a γ-AlOmodified with a rare earth element, or the modified catalyst carrier is a composite carrier prepared by mixing and calcinating γ-AlOand an acid molecular sieve through a binder, and then modifying with the rare earth element. The bifunctional catalyst for deep desulfurization and gasoline quality improvement can achieve deep desulfurization of high-sulfur fluid catalytic cracking gasoline, and ensure no significant loss of octane number under relatively mild conditions.

Bifunctional catalyst for deep desulfurization and gasoline quality improvement and preparation method therefor

The present disclosure provides an aromatization catalyst, a preparation method, a regeneration method and an aromatization method thereof. The preparation method comprises steps of: mixing a zeolite molecular sieve with a binder to obtain a catalyst precursor; the catalyst precursor is successively subjected to an ion exchange modification and a first modification treatment, and then subjected to a hydrothermal treatment, and further subjected to active metal loading and a second modification treatment, to obtain the aromatization catalyst. The aromatization catalyst has good carbon deposition resistance and high aromatization activity, and enables an aromatization reaction to be completed under mild conditions, and has high aromatic selectivity, and the liquid yield is above 98.5%.

Aromatization catalyst, preparation method, regeneration method thereof, and aromatization method

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Beijing, China

Lixia Dong