Heavy oil hydrogenation diasphaltene catalyst, and preparation method and application thereof

A technology for deasphalting and heavy oil hydrogenation, which is used in catalyst carriers, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., and can solve the problem of low asphaltene removal rate and heavy metal removal rate. It can not achieve a good match with the asphaltene removal rate, the removal rate is not high, and the asphaltene removal rate is not high.

Active Publication Date: 2015-02-11
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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  • Heavy oil hydrogenation diasphaltene catalyst, and preparation method and application thereof
  • Heavy oil hydrogenation diasphaltene catalyst, and preparation method and application thereof
  • Heavy oil hydrogenation diasphaltene catalyst, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0071] 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

[0073] 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

[0075] 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

The invention relates to a heavy oil hydrogenation diasphaltene catalyst, and a preparation method and an application thereof. The catalyst comprises a carrier and hydrogenation active metal components. The hydrogenation active metal components are selected from at least one VIB-family metal component and at least one VB-family metal component. The carrier is a bimodal pore alumina carrier comprising an IVB-family metal component. Characterized by mercury intrusion porosimetry, the carrier has pore volume of 0.6-1.4 ml/g, and specific surface area of 80-400 m<2>/g. The pore volume of pores with diameters of 5-20nm accounts for 30-60% of the total pore volume. The pore volume of pores with diameters of 100-300nm accounts for 15-45% of the total pore volume. Compared with prior arts, when the catalyst provided by the invention is used in residual oil hydrogenation treatment, the catalyst has better hydrogenation diasphaltene and demetalization performances.

Description

technical field [0001] The invention relates to a hydrogenation deasphaltene 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 hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/28B01J23/30B01J32/00C10G49/04
Inventor 孙淑玲杨清河胡大为刘佳曾双亲戴立顺
Owner CHINA PETROLEUM & CHEM CORP
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