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A hydrogenation protection catalyst and its preparation method and heavy oil hydroprocessing method

A hydrogenation protection and catalyst technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problems of short service life of catalysts and low catalyst activity, etc. Achieve the effect of improving hydrogenation activity, simple operation and good industrial application prospects

Active Publication Date: 2020-06-16
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Aiming at the disadvantages of low activity of hydrogenation protection catalysts or short service life of catalysts in the prior art, the present invention provides a new catalyst preparation method which can further improve catalyst performance and the heavy oil hydrogenation protection catalyst prepared by the method and the heavy oil hydrogenation catalyst Hydrogen treatment method

Method used

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  • A hydrogenation protection catalyst and its preparation method and heavy oil hydroprocessing method
  • A hydrogenation protection catalyst and its preparation method and heavy oil hydroprocessing method
  • A hydrogenation protection catalyst and its preparation method and heavy oil hydroprocessing method

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preparation example Construction

[0024] According to the preparation method of the hydrogenation protection catalyst provided by the present invention, the preparation method comprises the following steps:

[0025] (1) The water-soluble salt of the hydrogenation metal active component and the organic complexing agent are loaded on the carrier by the impregnation method, then dried and roasted to obtain a semi-finished catalyst, and the roasting conditions are such that the total amount of the semi-finished catalyst is used as a benchmark , the carbon content in the semi-finished catalyst is 0.03-0.5% by weight;

[0026] (2) using the solution containing the organic complexing agent as the impregnating liquid, the semi-finished catalyst obtained in step (1) is impregnated, then dried without roasting;

[0027] Wherein, the hydrogenation metal active component is at least one group VB metal component and at least one group VIII metal component.

[0028] According to the present invention, preferably, the calci...

Embodiment approach

[0061] According to a preferred embodiment of the present invention, the inorganic heat-resistant oxide is alumina.

[0062] According to a preferred embodiment of the present invention, the radial crushing strength of the carrier is 20-40N / mm, the water absorption is 0.7-1.0ml / g, the pore volume is 0.6-0.9ml / g, and the specific surface area is 200-350m 2 / g.

[0063] In the present invention, the measuring method of the water absorption of catalyst carrier is: carrier (by weight g) is immersed in water (by volume ml) for 2 hours, the ratio of carrier (by weight) to water (by volume) The ratio is 1:3, and then the carrier after water absorption is separated from the water, and the water absorption volume of the carrier is calculated, and the water absorption rate of the carrier = the water absorption volume of the carrier / the weight of the carrier.

[0064] In the present invention, the pore size, pore volume and specific surface area of ​​the carrier are measured by low-temp...

preparation example 1

[0092] Take by weighing 2000 grams of aluminum hydroxide powder (dried rubber powder produced by Changling Branch Catalyst Factory, dry basis 72% by weight), extrude into a butterfly bar with a circumscribed circle diameter of 1.3 mm with an extruder, and wet the bar at 120 ° C Drying for 4 hours and calcining at 600° C. for 3 hours to obtain carrier Z1. The radial crushing strength of the Z1 carrier is 29.5N / mm, the water absorption rate is 0.85ml / g, the pore volume is 0.67ml / g, and the specific surface area is 275m 2 / g.

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Abstract

The invention relates to a hydrogenation protection catalyst and a preparation method thereof. The preparation method comprises: (1) loading the water-soluble salt of a hydrogenation metal active component and an organic complexing agent onto a carrier by using an impregnating method, drying, and calcining to obtain a semi-finished product catalyst, wherein the charcoal content in the semi-finished product catalyst is 0.03-0.5 wt% based on the total amount of the semi-finished product catalyst under the calcining condition; and (2) impregnating the semi-finished product catalyst obtained in the step (1) by using a solution containing an organic complexing agent as an impregnating liquid, and drying without calcining, wherein the hydrogenation metal active component comprises at least a Group VB metal component and at least a Group VIII metal component. According to the present invention, with the application of the catalyst in heavy oil hydrotreating, the high demetallization rate andthe desulfurization rate can be achieved.

Description

technical field [0001] The invention relates to a preparation method of a hydrogenation protection catalyst, a hydrogenation protection catalyst prepared by the method and a heavy oil hydrotreating method using the hydrogenation protection catalyst. Background technique [0002] As crude oil becomes heavier and inferior, the difficulty of crude oil processing increases, and the yield of light oil products decreases. However, the market demand for high-quality light oil products continues to increase, and environmental protection regulations are becoming more and more inclusive. strict. At present, the processing and full utilization of heavy oil, especially residual oil, is becoming a major topic of concern in the global oil refining industry, and residual oil hydrogenation technology is a widely used processing technology in heavy oil processing technology, and is recognized as an economical and environmentally friendly deep processing technology . Residual oil contains a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/847C10G45/06
CPCB01J23/002B01J23/8472B01J2523/00C10G45/06C10G2300/202C10G2300/205C10G2300/70B01J2523/31B01J2523/55B01J2523/845B01J2523/847
Inventor 李明丰张乐贾燕子曾双亲杨清河刘学芬
Owner CHINA PETROLEUM & CHEM CORP
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