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Hydrogenation catalyst carrier and preparation method thereof

A technology of catalyst carrier and hydrogenation catalyst, which is applied to catalyst carrier, molecular sieve catalyst, chemical instruments and methods, etc., can solve the problems of insufficient nitrogen resistance of medium oil type catalysts, and achieve good nitrogen resistance, suitable acid content and uniform distribution. Effect

Active Publication Date: 2012-05-23
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] Aiming at the deficiencies of the prior art and the problem of insufficient nitrogen resistance of medium-oil catalysts, the present invention prepares a hydrogenation catalyst carrier, wherein the amorphous silica-alumina as the acidic component is first subjected to hydrothermal treatment, and the catalyst carrier of the present invention has Larger pore volume and specific surface area, appropriate acid content, and good nitrogen resistance. The catalyst prepared by the carrier of the present invention is suitable for the hydroprocessing of heavier and lower-quality vacuum distillate oils and producing more middle distillate oils. process or hydrocracking process

Method used

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  • Hydrogenation catalyst carrier and preparation method thereof

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preparation example Construction

[0025] The preparation method of catalyst carrier of the present invention is as follows:

[0026] (1) Hydrothermal treatment of amorphous silica-alumina dry rubber powder

[0027] The physical and chemical properties of the amorphous silica-alumina colloidal powder used in the catalyst carrier of the present invention before hydrothermal treatment are: the dry basis weight is 50% to 80%, and the surface area is 300 to 600m 2 / g, the pore volume is 0.4~1.2cm 3 / g. The amount of infrared acid (determined by pyridine infrared adsorption spectrometry) is between 0.4-1.5 mmol / g, which can be commercially available amorphous silica-alumina dry rubber powder, or can be prepared according to conventional methods in this field.

[0028] The hydrothermal treatment is carried out with saturated steam, the treatment pressure is 0.05-0.3MPa, the treatment temperature is 450-750°C, and the treatment time is 0.5-5h.

[0029] The properties of amorphous silicon-alumina after hydrothermal t...

Embodiment 1

[0037] Get amorphous silica-alumina dry rubber powder 1000g (commercially available commodity, dry basis is 70.13%, specific surface area is 458m 2 / g, the pore volume is 0.75cm 3 / g, the silicon oxide weight content is 45%, the infrared acid content is 1.0mmol / g), the hydrothermal treatment temperature is 500°C, the treatment pressure is 0.2MPa, and the treatment time is 2h. The obtained code is GL-1, and the properties of the product are shown in Table 1.

Embodiment 2

[0039] Take 1000 g of amorphous silica-alumina dry rubber powder (same as in Example 1), the hydrothermal treatment temperature is 600° C., the treatment pressure is 0.2 MPa, and the treatment time is 2 hours. The obtained code is GL-2, and the properties of the product are shown in Table 1.

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Abstract

The invention discloses a hydrogenation catalyst carrier which comprises, by weight, 0 to 40% of a molecular sieve, 20 to 75% of amorphous silica-alumina and 5 to 75% of alumina. The hydrogenation catalyst carrier has the following properties: a specific surface area is 200 m<2> / g to 500 m<2> / g; a pore volume is 0.40 cm<3> / g to 0.80 cm<3> / g. A preparation method for the hydrogenation catalyst carrier comprises the following steps: carrying out hydrothermal treatment on amorphous silica-alumina dry glue powder; weighing the above-mentioned components of the catalyst carrier in desired proportion; carrying out mixing and milling, molding, drying and activation on the components so as to obtain the catalyst carrier. Compared to conventional hydrogenation catalyst carriers, the catalyst carrier provided in the invention has the following advantages: the catalyst carrier has a greater pore volume, a greater specific surface area, a proper amount of acid and good nitrogen resistance; a catalyst prepared from the catalyst carrier is applicable to hydrotreatment of vacuum distillates which are heavier and poorer but can produce more middle distillates.

Description

technical field [0001] The invention relates to a hydrogenation catalyst carrier and a preparation method thereof, in particular to a hydrocracking catalyst carrier capable of treating inferior feedstock with high nitrogen resistance and a preparation method thereof. technical background [0002] In recent years, hydrocracking capacity has continued to increase worldwide, with the fastest growth in the Asia-Pacific region. The continuous growth of my country's economy has also strongly driven the domestic refined oil market to continue to rise. At present, the processing capacity of my country's existing hydrocracking units has exceeded 40.0Mt / a. However, due to the deterioration of crude oil quality year by year, a substantial increase in imported high-sulfur crude oil, and in order to improve economic benefits, refineries have generally adopted crude oil vacuum deep-drawing technology, which has increased the dry point of vacuum distillate oil from 520°C to 520°C. At arou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J32/00B01J35/10B01J29/70
Inventor 刘昶王凤来杜艳泽关明华
Owner CHINA PETROLEUM & CHEM CORP
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