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A heavy oil hydrodemetallization catalyst and its preparation and application

A hydrodemetallization and catalyst technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, chemical instrument and method, etc., can solve the problem that the removal rate of asphaltenes is not high , Heavy metal removal rate and asphaltene removal rate cannot achieve a good match, asphaltene removal rate is low, etc.

Active Publication Date: 2017-03-22
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage of existing heavy oil hydrogenation catalysts is that their S, N removal rates, heavy metal removal rates and asphaltenes removal rates cannot be well matched. For example, catalysts with high metal removal activity often S, N removal rate and asphaltenes removal rate are not high
[0008] However, the asphaltenes removal rates of these catalysts are generally low

Method used

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  • A heavy oil hydrodemetallization catalyst and its preparation and application
  • A heavy oil hydrodemetallization catalyst and its preparation and application
  • A heavy oil hydrodemetallization catalyst and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] Weigh 1000 grams of PA-1, then add 1000 milliliters of an aqueous solution containing 10 milliliters of nitric acid (product of Tianjin Chemical Reagent No. Dry the wet strips at 120°C for 4 hours to obtain dry strips, shape the dry strips, sieve, grind and sieve the dry strip materials (generally called industrial dry strip waste) with a length of less than 2mm, and take 100-200 Mesh sieving to obtain the modified PC-A1 of PA-1. See Table 1 for the k value of PC-A1.

Embodiment 2

[0072] Weigh 1000 grams of PA-1, then add 1000 milliliters of an aqueous solution containing 10 milliliters of nitric acid (product of Tianjin Chemical Reagent No. The wet strips were dried at 120°C for 4 hours, and roasted at 800°C for 4 hours to obtain the carrier. The carrier strips were shaped and sieved, and the carrier strip materials (generally called industrial carrier waste) with a length of less than 2mm were ground, sieved, and collected. Among them, sieve with 100-200 meshes to obtain the modified product PC-A2 of PA-1. See Table 1 for the k value of PC-A2.

Embodiment 3

[0074] Weigh 1000g of PA-2, and flash dry at 400°C for 6 minutes to obtain PC-A3, a modified product of PA-2. See Table 1 for the k value of PC-A3.

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Abstract

A hydrogenation demetalization catalyst for heavy oil, and preparation and applications thereof are disclosed. The catalyst comprises a carrier and hydrogenation active metal components, wherein the carrier is a double-peak pore aluminum oxide carrier containing metals of the IVB group. By representation by a mercury intrusion method, the pore volume of the carrier is 0.6-1.4 mL / g, the specific surface area is 80-400 m<2> / g, the pore volume of pores having a diameter of 5-20 nm is 30-60% of the total pore volume, and the pore volume of pores having a diameter of 100-300 nm is 15-45% of the total pore volume. Compared with the prior art, the catalyst has better hydrogenation deasphalting and demetallation properties when the catalyst is used for hydrogenation processing of residual oil.

Description

technical field [0001] The invention relates to a hydrodemetallization catalyst and its preparation and application. Background technique [0002] The deep processing of heavy oil including residual oil is not only conducive to improving the utilization rate of crude oil and alleviating the tense trend of energy supply, but also reducing environmental pollution and achieving clean utilization of energy. Compared with distillate oil, heavy oil contains a large number of macromolecular reactants such as asphaltenes and colloids, while heteroatom compounds such as sulfur, nitrogen, and oxygen in heavy oil have a large Some of them are concentrated in asphaltenes, and these impurities and heavy metals will pollute the corresponding catalysts in the subsequent processing. Therefore, the hydroconversion of asphaltenes is a key step in the hydrogenation process of residual oil. In the process of converting and removing asphaltene, it is necessary to select a catalyst with high act...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/882B01J23/883C10G45/08
Inventor 孙淑玲杨清河胡大为刘佳曾双亲邵志才
Owner CHINA PETROLEUM & CHEM CORP