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Hydrogenation catalyst and preparation method thereof

A hydrogenation catalyst and catalyst technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of poor catalyst design, insufficient relaxation of reaction conditions, and high energy consumption of devices

Inactive Publication Date: 2018-01-19
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the product quality can also meet the national standard of No. 3 jet fuel, but due to the lack of pertinence in the design of the catalyst, there are problems such as the reaction conditions are not moderate enough, and the energy consumption of the device is relatively high.

Method used

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  • Hydrogenation catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) γ-Al 2 o 3 Preparation of vector

[0028] Weigh 1000g of pseudo-boehmite powder, 30g of Tianqing powder, 30g of citric acid, 700ml of 3-5wt% dilute nitric acid, mix them evenly, extrude with an extruder, dry at 110°C for 10h, and roast at 550°C in an air atmosphere After treatment, γ-Al containing 2 o 3 carrier.

[0029] (2) Co-F / γ-Al 2 o 3 preparation of

[0030] Prepare 1000ml impregnation solution: weigh 47.8g citric acid and add it to 600ml deionized water, stir and heat to 50°C, weigh 79.4g cobalt nitrate (technical grade) and 18.3g trifluoroacetic acid (technical grade) and add it to the solution , boiled for 1.5h, and added dilute ammonia to adjust the pH value of the solution to 5.0. After cooling to room temperature, the solution was transferred to a volumetric flask, and water was added to make the volume to 1000ml to obtain an impregnating solution containing cobalt and fluorine.

[0031] Weigh the prepared γ-Al of 500g step (1) 2 o 3 For the c...

Embodiment 2

[0036] (1) γ-Al 2 o 3 Preparation of vector

[0037] Weigh 1000g of pseudoboehmite powder, 20g of Tianqing powder, 35g of citric acid, 700ml of 3-5wt% dilute nitric acid and mix evenly, extrude with extruder, dry at 110°C for 10h, and roast at 550°C in air atmosphere After treatment, γ-Al containing 2 o 3 carrier.

[0038] (2) Co-F / γ-Al 2 o 3 preparation of

[0039] Prepare 1000ml impregnation solution: weigh 122.0g oxalic acid and add it to 600ml water, stir and heat to 75°C, weigh 41.9g basic cobalt carbonate (industrial grade) and 29.8g hexafluoroisopropanol (industrial grade) solution, boiled for 1.5h, cooled to room temperature, transferred the solution to a volumetric flask, and added water to make up to 1000ml to obtain an impregnating solution containing cobalt and fluorine.

[0040] Weigh the prepared γ-Al of 500g step (1) 2 o 3 For the carrier, measure 353ml of the prepared impregnating solution containing cobalt and fluorine, impregnate in equal volume for 4...

Embodiment 3

[0045] (1) γ-Al 2 o 3 Preparation of vector

[0046] Weigh 1000g of pseudo-boehmite powder, 100g of Tianqing powder, 35g of citric acid, 700ml of 3-5wt% dilute nitric acid, mix them evenly, extrude them with an extruder, dry at 110°C for 10h, and roast at 550°C in an air atmosphere After treatment, γ-Al containing 2 o 3 carrier.

[0047] (2) Co-F / γ-Al 2 o 3 preparation of

[0048] Prepare 1000ml impregnation solution: weigh 122.0g oxalic acid and add it to 600ml water, stir and heat to 75°C, weigh 41.9g basic cobalt carbonate (industrial grade) and 32.8g tetrabutylammonium fluoride (industrial grade) Boil the solution for 1.5 hours, cool to room temperature, transfer the solution to a volumetric flask, add water to make the volume to 1000ml, and obtain an impregnating solution containing cobalt and fluorine.

[0049] Weigh 500g γ-Al 2 o 3 For the carrier, measure 384ml of the prepared impregnation solution containing cobalt and fluorine, impregnate with equal volume ...

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Abstract

The invention discloses a hydrogenation catalyst and a preparation method thereof. The preparation method of the catalyst comprises the following steps: (1) first, preparing a gamma-Al2O3 carrier; (2)loading the gamma-Al2O3 carrier by a Co metal component and a F-containing assistant component, and performing drying and roasting; and (3) performing impregnation on the carrier obtained in the step(2) by adopting a solution containing a Ni-containing compound and a W-containing and / or Mo-containing compound, and performing drying and roasting to obtain the catalyst. The catalyst is prepared byloading the gamma-Al2O3 with active components of Co, Ni and W / Mo, and simultaneously the F-containing compound is used as an auxiliary agent, wherein the F-containing compound is at least one selected from a group consisting of tetrabutylammonium fluoride, trifluoroacetic acid, hexafluoroacetone and hexafluoroisopropanol. The catalyst can be used for hydrofining of light distillate oil such as gasoline fraction, kerosene fraction and diesel fraction, has high hydrogenation desulfurization activity and aromatic saturation activity.

Description

technical field [0001] The present invention relates to a hydrogenation catalyst and its preparation method, more specifically, a catalyst for hydrodesulfurization and aromatics saturation of distillate oil, especially light distillate oil, and its preparation method. Background technique [0002] The National Standard for Jet Fuel No. 3 (GB6537-2006) addresses the issue in terms of appearance, color, composition, volatility, density, fluidity, combustibility, corrosion, stability, cleanliness, conductivity, water separation index and lubricity. Nearly 30 index requirements have been put forward for jet fuel. Jet fuel is one of the products with the most control indicators and the strictest quality requirements among petroleum products. [0003] From a global perspective, jet fuel is mainly produced by refining straight-run components with a suitable boiling range cut from atmospheric distillation units as raw materials, and the refining process is divided into non-hydrogen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/132
Inventor 徐伟池倪术荣方磊陆雪峰张文成缪超于春梅郭金涛孙发民王刚张全国赵野温广明王丹宋金鹤谭明伟马宝利张铁珍李瑞峰徐铁刚郭立艳冯秀芳亓荣彬
Owner PETROCHINA CO LTD
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