China Petroleum Chemical Corporation

Dalian Research Institute of Petroleum and Petrochemicals, Corp.

Sinopec Dalian Research Institute of Petroleum and Petrochemicals

Zhenhui Lv

Tao Yang

Tiebin Liu

Lu Liu

Hao Jin

Guang Yang

Huihong Zhu

Xiangchen Fang

Yiming Shi

A pseudo-boehmite has a dry basis content of 55-85 wt % and contains a phosphoric acid ester group. The sodium oxide content is not greater than 0.5 wt %, and the phosphorus content (in terms of phosphorus pentoxide) is 1.2-5.7 wt %, relative to 100 wt % of the total weight of the pseudo-boehmite. The pseudo-boehmite has a low sodium content.

Pseudo-boehmite, manufacturing process and application thereof

A silica-alumina material, its preparation and application thereof are provided. The silica-alumina material has a SiO/AlOmolar ratio of 0.8-1.5, and has a lamellar structure with an average length of 0.5-2 μm and an average thickness of 30-80 nm, and its calcined form has a specific XRD pattern. The silica-alumina material has the characteristics of large pore volume, two-stage gradient pore channels of mesopores and macropores, as well as high B acid content as in molecular sieve, and shows crystal characteristics of a molecular sieve, and low impurity content, and thus is suitable for use as a carrier for catalytic materials, particularly a carrier for heavy oil hydrogenation catalysts.

Silica-alumina material containing lamellar structure, its preparation and application thereof

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Liaoning, China

Zhenhui Lv