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Heavy oil hydrogenation catalyst and preparation method thereof, and heavy oil hydrogenation treatment method

A heavy oil hydrogenation and catalyst technology, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problem of low activity of heavy oil hydrogenation catalysts and achieve good industrial performance Application prospect, high activity stability, simple operation effect

Active Publication Date: 2018-08-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the problem of low activity of heavy oil hydrogenation catalysts in the prior art, the present invention provides a new catalyst preparation method which can further improve the performance of the catalyst, and the heavy oil hydrogenation catalyst prepared by the method and the heavy oil hydrogenation treatment method

Method used

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  • Heavy oil hydrogenation catalyst and preparation method thereof, and heavy oil hydrogenation treatment method
  • Heavy oil hydrogenation catalyst and preparation method thereof, and heavy oil hydrogenation treatment method
  • Heavy oil hydrogenation catalyst and preparation method thereof, and heavy oil hydrogenation treatment method

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preparation example Construction

[0023] According to the preparation method of the heavy oil hydrogenation catalyst provided by the present invention, the preparation method comprises the following steps:

[0024] (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;

[0025] (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;

[0026] Wherein, the hydrogenation metal active component is at least one metal component of Group VB and at least one metal component of Group VIB.

[0027] According to the present invention, preferably, the c...

Embodiment approach

[0058] According to a preferred embodiment of the present invention, the inorganic heat-resistant oxide is alumina, and more preferably the carrier is alumina and a macroporous molecular sieve (ie, alumina-macroporous molecular sieve). Among them, alumina is more preferably alumina obtained after firing a hydrated alumina (aluminum hydroxide) colloidal compound.

[0059] According to a preferred embodiment of the present invention, the radial crushing strength of the carrier is 20-40N / mm, the water absorption is 0.65-0.95ml / g, the pore volume is 0.6-0.9ml / g, and the specific surface area is 200-350m 2 / g.

[0060] In the present invention, the measuring method of the water absorption rate of catalyst carrier is: carrier (by weight) is immersed in water (by volume) for 2 hours, the ratio of carrier (by weight g) to water (by volume ml) 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 ca...

preparation example 1

[0089] 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 heavy oil hydrogenation 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-finishedproduct 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 thestep (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 VIB metal component. According to the present invention, with the application of the catalyst in heavy oil hydrogenation treatment, the high metal removal rate, the high residual carbon removal rate and the high desulfurization rate can be achieved.

Description

technical field [0001] The invention relates to a preparation method of a heavy oil hydrogenation catalyst, a heavy oil hydrogenation catalyst prepared by the method and a heavy oil hydrogenation treatment method using the heavy oil hydrogenation catalyst. Background technique [0002] As the world-wide contradiction between heavy and low-quality crude oil and diversified and light-weight demand for petrochemical products becomes increasingly acute, the main task of the petrochemical industry will focus on lightening heavy oil. Compared with distillate oil, in addition to impurities such as sulfur and nitrogen, heavy oil also contains a higher proportion of metal impurities such as Ni and V, and has a higher asphaltene content and higher carbon residue value. Among them, if metal impurities such as Ni and V are not effectively removed, they will have an adverse effect on the downstream catalyst, block the pores of the downstream catalyst, and cause the deactivation of the do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/26B01J31/36B01J37/02C10G45/04
CPCB01J31/26B01J31/36B01J37/0205C10G45/04C10G2300/202C10G2300/206C10G2300/70
Inventor 张乐赵新强杨清河刘学芬刘涛胡志海曾双亲
Owner CHINA PETROLEUM & CHEM CORP
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