Mineral spirit platreating catalyzer and preparation method thereof

Abstract

The invention discloses solvent oil hydrogenation catalyst and a preparation method thereof. The preparation method of the catalyst comprises the following steps: firstly, nickel oxide and aluminium oxide (or the precursor thereof) are mixed and pinched, squeezed into strips for molding, dried and roasted to obtain a carrier, and then a metallic solution including the nickel is soaked, dried and roasted to obtain the catalyst. The amount of the nickel oxide added to the process of the mixing and pinching occupies 50 wt percent to 70wt percent of the total content of the nickel oxide, and the nickel oxide is made through roasting the nickel carbonate obtained by sol through the gel method. The preparation method of the invention has only one mixing and pinching step and one soaking step, therefore, the process is simple, the material loss is less, and the cost is reduced; and the prepared catalyst has high hydrogenation activity, good anti-sintering performance and high operation stability.

Description

technical field [0001] The invention relates to a hydrogenation refining catalyst and a preparation method thereof, in particular to a solvent oil hydrogenation catalyst and a preparation method thereof. Background technique [0002] In recent years, the development of petroleum hydrocarbon solvent oil is very rapid, its application fields are also expanding, and the product varieties are increasing. No matter in industry or in people's daily life, petroleum hydrocarbon solvent oil is playing an increasingly important role, especially in edible oil, printing ink, leather, pesticide, insecticide, rubber, cosmetics, spices, chemical polymerization, medicine And it is widely used in various aspects such as cleaning of IC electronic components. Due to different application fields, petroleum hydrocarbon solvent oils have different product specifications, and there are certain restrictions on the content of sulfides and aromatics that can cause serious environmental pollution. ...

AI Technical Summary

Problems solved by technology

In the preparation process, impregnation was carried out twice, three times, and four times respectively, and a series of catalysts were prepared, and multiple drying and roasting operations were carried out at the same time, which also made the preparation process more complicated and costly.

[0008] CN200310106563.0 discloses a method for preparing a benzene hydrogenation catalyst. The method uses a co-precipitation method to prepare a mixture of nickel oxide and rare earth oxide or a mixture of nickel oxide, rare earth oxide and aluminum oxide, which is prepared by tablet molding. A cylindrical catalyst with a diameter of 4 mm and a height of 4 mm is obtained. Due to its large particle size, the reduction of active metals is not complete during the catalyst pre-reduction process. At the same time, the large particle catalyst makes the diffusion resistance of reactants or products near the center very large. , to a certain extent affect the full play of catalyst performance

In addition, due to its complex production process, the loss of raw materials in the production process is high, resulting in high production costs