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Method for preparing distillate oil hydrotreatment catalyst

A hydrogenation treatment and catalyst technology, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc. High, not enough mild reaction conditions, etc.

Active Publication Date: 2013-07-03
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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  • Method for preparing distillate oil hydrotreatment catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) γ-Al 2 o 3 Preparation of vector

[0021] Weigh 1000g of silicon-free pseudo-boehmite powder, 30g of Tianqing powder, 30g of citric acid, and 700ml of 3-5% dilute nitric acid, mix them evenly, extrude them with an extruder, dry them at 110°C for 10h, and place them at 650°C in an air atmosphere. After calcination at ℃, γ-Al 2 o 3 carrier.

[0022] (2) Ni-P / γ-Al 2 o 3 preparation of

[0023] Prepare 1000ml impregnation solution: weigh 107.6g of tartaric acid and add it to 600ml of deionized water, stir and heat to 50°C, weigh 83.6g of nickel nitrate (industrial grade) and 26.3g of ammonium dihydrogen phosphate (industrial grade) into the solution , boiled for 0.5 hour, and added dilute ammonia to adjust the pH value of the solution to 4.0. 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 nickel and phosphorus.

[0024] Weigh th...

Embodiment 2

[0029] (1) Silicon-containing γ-Al 2 o 3 Preparation of vector

[0030] Weigh 1000g of silicon-containing pseudo-boehmite, 45g of Tianqing powder, 35g of oxalic acid, and 680ml of 3-5% dilute nitric acid, mix them evenly, extrude them with an extruder, dry at 110°C, and dry at 550°C in an air atmosphere After roasting treatment, silicon-containing γ-Al 2 o 3 carrier.

[0031] (2) Ni-P / silicon-containing γ-Al 2 o 3 preparation of

[0032] Prepare 1000ml impregnation solution: weigh 140.0g oxalic acid and add it to 600ml water, stir and heat to 50°C, weigh 45.5g basic nickel nickel carbonate (industrial grade) and 31.3g calcium hydrogen phosphate (industrial grade) and add to the solution , boil for 0.5 hours, cool to room temperature, transfer the solution to a volumetric flask, add water to make the volume 1000ml, and obtain an impregnating solution containing nickel and phosphorus.

[0033] Weigh the silicon-containing γ-Al prepared by 500g step (1) 2 o 3 For the ca...

Embodiment 3

[0038] (1) γ-Al 2 o 3 Preparation of vector

[0039] With embodiment 1 (1).

[0040] (2) Ni-P / γ-Al 2 o 3 preparation of

[0041] The preparation of the dipping solution is the same as in Example 2 (2).

[0042] Weigh 500g γ-Al 2 o 3 As for the carrier, measure 375ml of the prepared impregnation solution containing nickel and phosphorus, impregnate with equal volume for 30 minutes, dry at 110°C for 2 hours, and roast at 460°C to obtain a semi-finished catalyst.

[0043] (3) Co-Mo-Ni-P / γ-Al 2 o 3 Catalyst preparation

[0044] The preparation of the dipping solution is the same as in Example 1 (3).

[0045] Weigh the prepared Ni-P / γ-Al of 500g step (2) 2 o 3 For the catalyst semi-finished product, measure 347ml of the prepared impregnation solution containing cobalt and molybdenum, impregnate with equal volume for 30 minutes, dry at 110°C for 2 hours, and roast at 460°C to obtain the finished catalyst.

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Abstract

The invention relates to a method for preparing a distillate oil hydrotreatment catalyst. Ni, Co, W / Mo active components are loaded by gamma-Al2O3 or silicon-containing gamma-Al2O3, P element is included as a cocatalyst component, and any element selected from the group consisting of Mg, Zn, Fe and Ca may also be included as a cocatalyst component. The method for preparing the distillate oil hydrotreatment catalyst comprises the following steps: (1) firstly preparing gamma-Al2O3 or a silicon-containing gamma-Al2O3 carrier; (2) loading the gamma-Al2O3 or the silicon-containing gamma-Al2O3 with a Ni metal component and a P auxiliary component, then drying and calcining; (3) soaking the carrier obtained in step (2) into a solution of Co-containing compound, and W and / or Mo-containing compound, drying and calcining to obtain a finished catalyst. The catalyst can be used for hydrotreatment of light distillate oils such as a reforming raw material, gasoline fraction and kerosene fraction, and has a high hydrodesulfurization activity.

Description

technical field [0001] The invention relates to a method for preparing a hydrogenation catalyst, more specifically, a method for preparing a hydrodesulfurization catalyst for distillate oil, especially light distillate oil. Background technique [0002] No. 3 jet fuel national standard (GB 6537-2006) from the aspects of appearance, color, composition, volatility, density, fluidity, combustibility, corrosion, stability, cleanliness, conductivity, water separation index and lubricity, etc. Nearly 30 index requirements were 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-hydrogenation process and hydrotreating process . [0004] Due to the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/883C10G45/08
Inventor 徐伟池张文成张志华田然郭金涛于春梅孟锐蒋秀岩王丹方磊温广明冯秀芳王甫村谭明伟张全国孙生波宋金鹤张铁珍高晓丽袁宗胜张国甲
Owner PETROCHINA CO LTD
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