A kind of hydrocracking active proppant and preparation method thereof

Abstract

The invention discloses a preparation method of an active hydrocracking proppant. The method comprises the following steps: (1) adopting amorphous silica-alumina, dry glue powder of macroporous pseudoboehmite, and dry glue powder of nanoscale micropore pseudoboehmite as raw materials, molding the raw materials, and drying the molded raw materials so as to obtain a spherical proppant carrier; (2) preparing a metallic salt solution containing active hydrogenation components; (3) enabling the spherical proppant carrier in the step (1) to load the metallic salt solution containing the active hydrogenation components in the step (2), and drying and calcinating the spherical proppant carrier loading the metallic salt solution so as to obtain the active hydrorefining proppant. The proppant has appropriate specific surface area and pore volume, and has high mechanical strength and high hydrocracking performance.

Description

Technical field [0001] The invention relates to an active proppant for hydrocracking and a preparation method thereof, in particular to an active proppant with high mechanical strength with higher ring-opening performance for polycyclic hydrocarbons. [0002] technical background [0003] In the 21st century, the consumption growth of my country's petrochemical products has surpassed the growth of petroleum products, and large-scale ethylene and large-scale aromatics plants will become the hot spots of petrochemical development. The refinery produces naphtha in accordance with the principle of "ene is suitable for olefin, aromatic for aromatic, and oil for oil". Both ethylene cracking raw materials and catalytic reforming raw materials must be provided to produce high-octane gasoline. Blending components and aromatic hydrocarbon feedstock. Hydrocracking technology has become the core of the oil-chemical-fiber combination of refineries due to its advantages of strong feedstock oil ...

AI Technical Summary

Problems solved by technology

Although the above-mentioned new ceramic balls play a certain role in improving the logistics distribution and alleviating the pressure drop of the reactor, because the ceramic balls themselves have no catalytic activity and occupy a limited bed volume, they cannot fundamentally solve the problem of device expansion and product failure. Demand for quality upgrades, especially to improve the overall hydrogenation performance of the reaction system

The hydrocracking catalysts used in the prior art are not suitable for direct use as proppants due to their low mechanical strength, and the high-temperature-treated ceramic balls are difficult to load active components

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