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A kind of anthracene oil hydrotreating catalyst and its preparation method and application

A technology for hydrorefining and catalyst, applied in the field of coal chemical industry, can solve the problems of poor anthracene oil hydrotreating effect, affecting the quality of product oil, etc., so as to improve the impurity removal rate, improve the stability and service life, and improve the dissolution rate. Effects of Sex and Stability

Active Publication Date: 2018-01-19
西安恒旭科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, there are few reports on the use of anthracene oil to produce naphthenic transformer oil base oil, and the commonly used hydrogenation catalysts are not effective in hydrotreating anthracene oil, which affects the quality of subsequent product oils

Method used

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  • A kind of anthracene oil hydrotreating catalyst and its preparation method and application
  • A kind of anthracene oil hydrotreating catalyst and its preparation method and application
  • A kind of anthracene oil hydrotreating catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The carrier of the anthracene oil hydrotreating catalyst in this example is γ-Al 2 o 3 / MgO composite carrier, the active components are metal oxides of Ni, W and Mo, and the additive is P 2 o 5 Mixed with K; the catalyst has a pore volume of 0.36mL / g and a specific surface area of ​​185.72m 2 / g, pores with a diameter of 4-8 nm accounted for 20.1% of the total pore volume, pores with a diameter of 8-25 nm accounted for 35.3% of the total pore volume, and the average pore diameter was 9.29 nm.

[0041] The catalyst is based on the weight of the carrier, P 2 o 5 Accounting for 2.15% of the weight of the carrier, K 2 O accounts for 1.75% of the weight of the carrier, NiO accounts for 6.45% of the weight of the carrier, WO 3 Accounting for 24.38% of the weight of the carrier, MoO 3 Accounting for 11.73% of the weight of the carrier.

[0042] The anthracene oil hydrotreating catalyst is prepared by the following method, specifically:

[0043] (1) Add 8g of magnesiu...

Embodiment 2

[0068] The carrier of the anthracene oil hydrotreating catalyst in this example is γ-Al 2 o 3 / MgO composite carrier, the active components are metal oxides of Ni, W and Mo, and the additive is P 2 o 5 Mixed with K; the catalyst has a pore volume of 0.41mL / g and a specific surface area of ​​193.25m 2 / g, pores with a diameter of 4-8 nm accounted for 22.1% of the total pore volume, pores with a diameter of 8-25 nm accounted for 29.8% of the total pore volume, and the average pore diameter was 8.27 nm.

[0069] The catalyst is based on the weight of the carrier, P 2 o 5 Accounting for 1.09% of the weight of the carrier, K 2 O accounts for 1.07% of the carrier weight, NiO accounts for 4.31% of the carrier weight, WO 3 Accounting for 12.07% of the weight of the carrier, MoO 3 Accounting for 15.47% of the weight of the carrier.

[0070] The anthracene oil hydrotreating catalyst is prepared by the following method, specifically:

[0071] (1) Add 6g of magnesium nitrate (by ...

Embodiment 3

[0084] The carrier of the anthracene oil hydrotreating catalyst in this example is γ-Al 2 o 3 / ZnO composite carrier, the active components are metal oxides of Ni, W and Mo, and the additive is P 2 o 5 Mixed with K; the catalyst has a pore volume of 0.33mL / g and a specific surface area of ​​173.46m 2 / g, pores with a diameter of 4-8 nm accounted for 21.7% of the total pore volume, pores with a diameter of 8-25 nm accounted for 31.4% of the total pore volume, and the average pore diameter was 8.73 nm.

[0085] The catalyst is based on the weight of the carrier, P 2 o 5 Accounting for 2.39% of the weight of the carrier, K 2 O accounts for 2.18% of the weight of the carrier, NiO accounts for 7.89% of the weight of the carrier, WO 3 Accounting for 27.89% of the weight of the carrier, MoO 3 Accounting for 15.92% of the weight of the carrier.

[0086] The anthracene oil hydrotreating catalyst is prepared by the following method, specifically:

[0087] (1) Add 12g zinc nitra...

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Abstract

The present invention relates to an anthracene oil hydrorefining catalyst, and a preparation method and application thereof. The preparation method for the catalyst comprises adding Mg or Zn during preparation of a gamma-Al2O3 carrier; during the preparation, changing an addition ratio of two pore-expanding agents of carbon black and stearic acid to synthesize a catalyst carrier with bimodal distributed pore size; modifying by using an alkali metal to reduce acidity of a surface of the catalyst, which is favorable for reduction of Co and Mo, reduction of a rate of carbon deposition and improving of stability and catalytic activity of the catalyst. When anthracene oil is used for producing naphthenic base oil, by anthracene oil hydrotreating, hydrogen saturating, fractionating hydrogenated liquid product and tail oil returning back into a hydrotreating unit, gasoline, diesel oil, base oil of transformer oil and other high value-added products are obtained. According to the method provided by the present invention, an anthracene oil hydrogenation process is broadened; an inexpensive and abundant anthracene oil resource is reasonably used; the obtained base oil of transformer oil has a high yield and good quality, and complies with the standard for Number 45 transformer oil in national GB 2536-1990 (transformer oil).

Description

technical field [0001] The invention belongs to the field of coal chemical industry, and in particular relates to a catalyst for hydrogenation of anthracene oil, a preparation method thereof, and a method for using the catalyst to realize hydrogenation of anthracene oil to produce naphthenic transformer oil base oil. Background technique [0002] Transformer oil is a fractionation product of petroleum. Its main components are alkanes, naphthenic saturated hydrocarbons, aromatic unsaturated hydrocarbons and other compounds; it is mainly installed in transformers, capacitors, and rheostats as insulating media, arc suppression, and heat transfer. for. According to the working characteristics of transformer oil, transformer oil is required to have good electrical properties, strong anti-oxidation stability, excellent low temperature fluidity, high temperature safety performance and low acid, alkali, sulfur, ash and other impurities, so transformer oil It must be a product of de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J27/19C10G67/02
CPCB01J23/04B01J23/28B01J23/30B01J23/755B01J27/19B01J35/0006B01J35/1019B01J35/1038B01J35/1061C10G67/02C10G2300/1048C10G2300/70C10G2400/10
Inventor 鲁礼民李稳宏毛选伟孔庆伟闫丙辰李冬陈芳
Owner 西安恒旭科技股份有限公司
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