Preparation method of hydrodesulfurization catalyst for light distillate oil

A light distillate and catalyst technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of high energy consumption of the device and insufficient reaction conditions , the catalyst design is not targeted, etc.

Active Publication Date: 2014-05-28
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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  • Preparation method of hydrodesulfurization catalyst for light distillate oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) γ-Al 2 o 3 Preparation of vector

[0022] Weigh 1000g of silicon-free pseudo-boehmite powder, 30g of Tianqing powder, 30g of citric acid, 700ml of 3-5wt% dilute nitric acid and mix evenly, extrude with an extruder, dry at 110°C for 10h, and dry at 550°C in an air atmosphere. After calcination at ℃, γ-Al 2 o 3 carrier.

[0023] (2) Co-P / γ-Al 2 o 3 preparation of

[0024] 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 (industrial grade) and 24.7g ammonium dihydrogen phosphate (industrial grade) solution, boiled for 1.5 hours, and added dilute ammonia to adjust the pH value of the solution to 3.5. 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 phosphorus.

[0025] Weigh the prepared γ-Al of 500g step (1) 2 o 3 For ...

Embodiment 2

[0030] (1) Titanium-containing γ-Al 2 o 3 Preparation of vector

[0031] Weigh 1000g of pseudo-boehmite, 45g of Tianqing powder, 35g of oxalic acid, 25g of metatitanic acid, 672ml of 3-5% dilute nitric acid and mix evenly, extrude with an extruder, dry at 110°C, and After calcination at 550°C, titanium-containing γ-Al 2 o 3 carrier.

[0032] (2) Co-P / titanium-containing γ-Al 2 o 3 preparation of

[0033] 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 26.4g phosphoric acid (industrial grade) into the solution, boil After 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 phosphorus.

[0034] Weigh the titanium-containing γ-Al prepared by 500g step (1) 2 o 3 For the carrier, measure 378ml of the prepared impregnation sol...

Embodiment 3

[0039] (1) γ-Al 2 o 3 Preparation of vector

[0040] With embodiment 1 (1).

[0041] (2) Co-P / γ-Al 2 o 3 preparation of

[0042] The preparation of the dipping solution is the same as in Example 2 (2).

[0043] Weigh 500g γ-Al 2 o 3 For the carrier, measure 384ml of the prepared impregnation solution containing cobalt and phosphorus, impregnate with equal volume for 45 minutes, dry at 110°C for 2 hours, and calcined at 460°C to obtain a semi-finished catalyst.

[0044] (3) Ni-Mo-Co-P / γ-Al 2 o 3 Catalyst preparation

[0045] The preparation of the dipping solution is the same as in Example 1 (3).

[0046] Weigh 500g of Co-P / γ-Al prepared in step (2) 2 o 3 For the catalyst semi-finished product, measure 357ml of the prepared impregnation solution containing nickel and molybdenum, impregnate with equal volume for 45min, dry at 110°C for 2h, and roast at 460°C to obtain the finished catalyst.

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Abstract

The invention relates to a preparation method of a hydrodesulfurization catalyst for light distillate oil. The preparation method comprises the following steps: (1) firstly preparing a gamma-Al2O3 or titanium-containing gamma-Al2O3 carrier; (2) loading a Co metal component and a P auxiliary component on the gamma-Al2O3 or titanium-containing gamma-Al2O3 carrier, drying and roasting the substances; (3) adopting a solution containing Ni, W and/or Mo compound to soak the carrier obtained in the step (2), drying and roasting the substances to obtain the catalyst. The catalyst can be used for hydrorefining of light distillate oil such as gasoline fraction and kerosene distillate, and performs high hydrodesulfurization activity.

Description

technical field [0001] The invention relates to a preparation method of a light distillate oil hydrogenation desulfurization catalyst. Background technique [0002] The National Standard for Jet Fuel No. 3 (GB6537-2006) addresses jet fuel 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-hydrogenation process and hydrotreating process . [0004] Due to the existence of different degrees of pollution in the non-hydrogenation pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/883C10G45/08
Inventor 徐伟池郭金涛王元琪褚洪岭田然张文成张志华岳树江陈凯郭伟王华敏赵野常玉红温广明王丹王甫村周清华张铁珍宋金鹤方磊马东海张全国李凤铉谭明伟孙生波唐成
Owner PETROCHINA CO LTD
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