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Heavy oil hydrotreating catalyst and preparation method and application thereof

A heavy oil hydrogenation and catalyst technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems affecting the industrial application effect of catalysts, and achieve economical and Effect of hydrogen treatment cost and improvement of production efficiency

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

[0059] In the preparation method according to the present invention, the step S1 of treating the carrier includes introducing a sulfur source and a titanium source into the carrier, and then drying and calcining. The introduction mentioned here refers to impregnating the carrier with an aqueous solution containing a sulfur source and a titanium source.

[0060] As an option, the introduction of the sulfur source and the titanium source can also be performed simultaneously with the introduction of the metal component.

[0061] As an option, if the selected carrier itself contains the above-mentioned amounts of sulfur and titanium, it is only necessary to calcinate the carrier at a high temperature for a certain period of time.

[0062] As the titanium source, it can be one or more of titanium oxide, ammonium titanate or titanium organic compounds; as the sulfur source, it can be one or more of sulfuric acid and metal sulfate. The amount of the titanium source and the sulfur source is...

preparation example 1～4

[0085] Preparation of alumina carrier

preparation example 1

[0087] Mix 1 kilogram of pseudo-boehmite dry rubber powder RPB90 produced by Changling Catalyst Factory, 30 grams of sesame powder and 25 grams of titanium dioxide, and mix the mixture with 1.1 liters of acetic acid with a concentration of 2% by weight at room temperature. The aqueous solution was mixed uniformly, and then kneaded into a plastic body on a twin-screw extruder, and then extruded into a trilobal strip of Φ1.1 mm. The wet strip was dried at 120°C for 3 hours, and then calcined at 800°C for 3 hours to obtain carrier Z1. The physical and chemical results of Z1 are shown in Table 1.

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Abstract

Disclosed are a catalyst for heavy oil hydrotreatment and a preparation method and application thereof. The catalyst comprises a carrier containing titanium and a metal component supported on the carrier, wherein the metal component comprises at least one VIB group metal and VIII group metals cobalt and nickel; by taking the total weight of the catalyst as a reference in terms of oxide, the content of the at least one VIB group metal is 8-30 wt% and the content of the VIII group metals cobalt and nickel is 2-8 wt%; and the atomic ratio of cobalt to nickel is 2-4. When the catalyst is measuredby 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 present invention relates to a hydrotreating catalyst, in particular to a heavy oil hydrotreating catalyst and its preparation method and application. Background technique [0002] The processing of heavy oil, especially the deep processing of residual oil, is not only conducive to improving the utilization rate of crude oil, alleviating the tight trend of energy supply, but also reducing environmental pollution and realizing efficient and clean use of energy. [0003] For heavy feedstock 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 pollutants such as sulfur and nitrogen in the oil products. The demand for light oil products continues to increase, and environmental protection regulations are becoming stricter today, and they are generally favored by oil refiners. Compared with light oils, heavy oils contain a lot of impurities such as sulfur,...

Claims

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Application Information

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IPC IPC(8): B01J23/883B01J27/02B01J27/19B01J27/053C10G45/08
CPCB01J23/883B01J27/02B01J27/053B01J27/19C10G45/08C10G2300/1037C10G2300/201C10G2300/202C10G2300/205C10G2300/70
Inventor 胡大为杨清河孙淑玲王振聂鑫鹏戴立顺
Owner CHINA PETROLEUM & CHEM CORP
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