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Heavy oil hydrogenation catalyst and preparation method and application thereof

A heavy oil hydrogenation and catalyst technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve problems such as difficult to balance catalyst activity and stability, and achieve Good application prospects, extended service life, and improved stability

Active Publication Date: 2021-10-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] A main purpose of the present invention is to overcome at least one defect of the above-mentioned prior art, and provide a heavy oil hydrogenation catalyst and its preparation method and application, so as to solve the problem that the existing heavy oil hydrogenation catalyst is difficult to balance catalyst activity and stability

Method used

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  • Heavy oil hydrogenation catalyst and preparation method and application thereof
  • Heavy oil hydrogenation catalyst and preparation method and application thereof
  • Heavy oil hydrogenation catalyst and preparation method and application thereof

Examples

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preparation example Construction

[0041] The present invention also provides a method for preparing the aforementioned heavy oil hydrogenation catalyst, comprising: mixing an inorganic heat-resistant oxide precursor, a nickel source, and a molding aid to obtain a mixture, and performing molding treatment; Calcining at low temperature for 1h-10h to obtain the carrier; impregnating the carrier in a solution containing active components, drying the impregnated product and activating it at a temperature of 300°C-550°C to obtain a heavy oil hydrogenation catalyst.

[0042] Tests have shown that in the preparation method of the present invention, only by calcination at a temperature of 600-800° C. for 1-10 hours can the carrier with the aforementioned spinel structure be formed. If the calcination temperature is too low or the calcination time is too short, the spinel content in the obtained carrier is too low, and the effect of improving the activity stability is not obvious; if the calcination temperature is too hi...

Embodiment 1

[0061] This example is used to illustrate the preparation method of the heavy oil hydrogenation catalyst of the present invention.

[0062] Mix 1 kilogram of pseudo-boehmite dry rubber powder RPB100 produced by Changling Catalyst Factory and 30 grams of fennel powder evenly, and mix the mixture with 1.2 liters of NiO 26 grams per liter and sulfuric acid 39 grams per liter at room temperature. The mixed aqueous solution of basic nickel carbonate and sulfuric acid is mixed evenly, after being kneaded into a plastic body on a twin-screw extruder, extruded into a butterfly-shaped strip of Φ1.1 mm, and the wet strip is dried at 120°C for 3 hours, and then dried at 200°C / The temperature was raised to 630° C. within hours, and kept at 630° C. for 4 hours to obtain a nickel-containing carrier.

[0063] Weigh 100 grams of the above-mentioned nickel-containing carrier, and use 120 milliliters of MoO 3 The catalyst was prepared by immersing in a mixed solution of 148 g / L molybdenum ox...

Embodiment 2

[0066] This example is used to illustrate the preparation method of the heavy oil hydrogenation catalyst of the present invention.

[0067] Mix 1 kilogram of pseudo-boehmite dry rubber powder RPB100 produced by Changling Catalyst Factory and 30 grams of fennel powder evenly, and mix the mixture with 1.2 liters of NiO 26 grams per liter and sulfuric acid 39 grams per liter at room temperature. The mixed aqueous solution of nickel nitrate and sulfuric acid is mixed evenly, kneaded into a plastic body on a twin-screw extruder, and then extruded into a Φ1.1mm butterfly strip. After the wet strip is dried at 120°C for 3 hours, the temperature is raised at 200°C / hour to 650° C., and kept at 650° C. for 4 hours to obtain a nickel-containing carrier.

[0068] Weigh 100 grams of the above-mentioned nickel-containing carrier, and use 120 milliliters of MoO 3 The catalyst was prepared by immersing in a mixed solution of 148 g / L ammonium molybdate and ammonia water for 1 hour, drying at...

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Abstract

The invention provides a heavy oil hydrogenation catalyst and a preparation method and an application thereof, the heavy oil hydrogenation catalyst comprises a carrier and an active component loaded on the carrier, the carrier comprises an inorganic heat-resistant oxide, nickel oxide and a compound thereof, when the carrier is measured by diffuse reflection ultraviolet-visible spectrum, absorbance at 630nm and absorbance at 500nm are F630 and F500 respectively, and the ratio Q of F630 to F500 is 1.3-3.0; the active component comprises at least one group VIB metal, and the content of the active component is 8%-30% by oxide on the basis of the total weight of the catalyst; in a Raman spectrum of the heavy oil hydrogenation catalyst, the intensity of a characteristic peak near 940 cm <-1> and the intensity of a characteristic peak near 840 cm <-1> are I940 and I840 respectively, and the ratio K of I940 to I840 is 1.0-2.4. The heavy oil hydrogenation catalyst disclosed by the invention has excellent stability while ensuring good initial activity, the service life of the heavy oil hydrogenation catalyst is greatly prolonged, the production efficiency is improved, and the heavy oil hydrogenation catalyst has a good application prospect.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a heavy oil hydrogenation catalyst and its preparation method and application. Background technique [0002] Heavy oil processing, especially the deep processing of residual oil, not only helps to improve the utilization rate of crude oil, alleviate the tense trend of energy supply, but also reduce environmental pollution and realize efficient and clean utilization of energy. [0003] For heavy crude 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 sulfur, nitrogen and other pollutants in the oil products, so it is widely used in the market The demand for light oil products continues to increase, and today's environmental protection regulations tend to be stricter, and they are generally favored by refiners. Compared with light oil products, heavy oil contains a large amount of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/883C10G45/08
CPCB01J23/883B01J23/005C10G45/08C10G2300/202C10G2300/1037C10G2300/205B01J2523/00B01J2523/31B01J2523/68B01J2523/847Y02P20/52
Inventor 胡大为王振杨清河孙淑玲韩伟户安鹏邓中活
Owner CHINA PETROLEUM & CHEM CORP
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