Heavy oil hydrotreating catalyst and preparation method and application thereof

A heavy oil hydrogenation and catalyst technology, which is applied in the direction of physical/chemical process catalysts, chemical instruments and methods, and hydrocarbon oil treatment, can solve problems affecting the industrial application effect of catalysts, and achieve the goal of saving hydrogenation treatment costs and improving production efficiency Effect

Pending Publication Date: 2020-05-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Compared with distillate oil, heavy oil hydrogenation catalysts require higher reactivity, and also have higher requirements for activity stability. At present, there is no disclosed technology that can well meet the requirements of both catalyst activity and stability. This seriously affects the actual industrial application effect of the catalyst.

Method used

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  • Heavy oil hydrotreating catalyst and preparation method and application thereof
  • Heavy oil hydrotreating catalyst and preparation method and application thereof
  • Heavy oil hydrotreating catalyst and preparation method and application thereof

Examples

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preparation example Construction

[0058] In the preparation method according to the present invention, the step S1 of treating the carrier includes introducing a sulfur source and a fluorine source into the carrier, followed by drying and calcining. The introduction mentioned here refers to impregnating the support with an aqueous solution containing a sulfur source and a fluorine source.

[0059] Alternatively, the introduction of the sulfur source and the fluorine source can also be carried out simultaneously with the introduction of the metal component.

[0060] As an option, if the selected support itself contains the above-mentioned amounts of sulfur and fluorine, it is only necessary to calcinate the support at high temperature for a certain period of time.

[0061] As a fluorine source, it can be one or more of metal fluoride or ammonium fluoride; as a sulfur source, it can be one or more of sulfuric acid and metal sulfate. The amount of the fluorine source and the sulfur source is such that the finall...

preparation example 1～4

[0084] Preparation of Alumina Support

preparation example 1

[0086] Mix 1 kilogram of pseudo-boehmite dry rubber powder RPB90 produced by Changling Catalyst Factory and 30 grams of fenugreek powder evenly, and at room temperature, this mixture is mixed with 1.1 liters of ammonia fluoride containing 45 grams, and the concentration by weight is 2%. Mix the acetic acid aqueous solution evenly, continue to knead it into a plastic body on a twin-screw extruder, extrude it into a Φ1.1mm trefoil strip, dry the wet strip at 120°C for 3 hours, and then roast it at 800°C for 3 hours to obtain the carrier Z1 . The physical and chemical results of the determination of Z1 are shown in Table 1.

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Abstract

Disclosed are a heavy oil hydrotreating catalyst and a preparation method and application thereof. The catalyst comprises a carrier containing fluorine and a metal component supported on the carrier,wherein the metal component comprises at least one VIB group metal and a VIII group metal; and by taking the total weight of the catalyst as a reference in terms of oxide, the content of the at leastone VIB group metal is 8-30 wt%, and the content of the group VIII metal is 2-8 wt%. When the catalyst is measured by diffuse reflectance ultraviolet visible spectroscopy (DRUVS), the absorbance at 630 nm and the absorbance at 500 nm are F630 and F500 respectively, and the ratio Q=F630 / F500 of the absorbance at 630 nm to the absorbance at 500 nm is 1.3-3.0. The catalyst has remarkably improved reaction activity stability and good hydrogenation activity, so that the hydrotreatment cost of heavy oil can be remarkably saved, and the production efficiency of equipment is improved.

Description

technical field [0001] The invention relates to a hydrogenation treatment catalyst, in particular to a heavy oil hydrogenation treatment catalyst and its preparation method and application. Background technique [0002] Heavy oil processing, especially the deep processing of residual oil, not only helps to improve the utilization rate of crude oil, alleviate the tense trend of energy supply, but also reduce environmental pollution and realize efficient and clean utilization of energy. [0003] For heavy crude oil, pretreatment by hydrogenation process and then secondary processing can not only increase the yield of light oil products, but also reduce the content of sulfur, nitrogen and other pollutants in the oil products, so it is widely used in the market The demand for light oil products continues to increase, and today's environmental protection regulations tend to be stricter, and they are generally favored by refiners. Compared with light oil products, heavy oil conta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/132B01J27/19B01J27/24B01J27/25C10G45/08
CPCB01J27/132B01J27/19B01J27/24B01J27/25C10G45/08C10G2300/1037C10G2300/201C10G2300/202C10G2300/205C10G2300/70
Inventor 胡大为杨清河孙淑玲王振邓中活戴立顺
Owner CHINA PETROLEUM & CHEM CORP
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