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Hydroprocessing catalyst and preparation method of hydroprocessing catalyst and preparation method of lubricant base oil

A hydrotreating and catalyst technology, applied in physical/chemical process catalysts, hydrocarbon oil treatment, catalyst carriers, etc., can solve problems such as improving the acidity of silicon-alumina materials, and achieve high viscosity index, excellent cracking activity and improved viscosity index. Ability, high yield effect

Active Publication Date: 2011-08-10
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the silica-alumina catalyst obtained by this method is only macroscopically uniform, and cannot maximize the acidity of the silica-alumina material.

Method used

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  • Hydroprocessing catalyst and preparation method of hydroprocessing catalyst and preparation method of lubricant base oil
  • Hydroprocessing catalyst and preparation method of hydroprocessing catalyst and preparation method of lubricant base oil
  • Hydroprocessing catalyst and preparation method of hydroprocessing catalyst and preparation method of lubricant base oil

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Embodiment approach

[0033] According to a preferred embodiment of the present invention, the precipitation agent is ammonia water with a concentration of 5-10% by weight, and at this time, the method of mixing the silicon-aluminum mixed solution with the precipitation agent is to add the ammonia water to the silicon-aluminum solution. In the mixed solution, the ammonia water is added at a rate such that the mixing is carried out at a pH value of 8.7-9.3, that is, the ammonia water is added at a rate such that the pH value of the system during the mixing process is 8.7-9.3.

[0034] The mixing of the silicon-aluminum mixed solution and the precipitating agent is preferably carried out under high-speed stirring, and the stirring speed is preferably above 1000 RPM, more preferably 1500-5000 RPM.

[0035] The present invention has no special restrictions on the silicon-aluminum mixed solution, as long as it can undergo a co-precipitation reaction with the precipitant to obtain the required precipitati...

Embodiment 1

[0076] 3127g Al 2 (SO 4 ) 3 18H 2 O (analytically pure, [Al 2 (SO 4 ) 3 18H 2 O] content≥99.0% by weight, water insoluble matter≤0.02% by weight, chloride (Cl)≤0.002% by weight, iron (Fe)≤0.003% by weight, the same below) and 98% sulfuric acid (concentration is 98% by weight) of 845g , analytically pure, the same below) was dissolved in 4968g deionized water to make solution I (pH value was 0.34, Al 2 o 3 The content is 85 g / L). With 2070g sodium silicate solution (analytically pure, molecular formula: Na 2 SiO 3 9H 2 O, content (as Na 2 O): 19.3-22.8% by weight, iron≤0.02% by weight; heavy metal (calculated as Pb)≤0.001% by weight, the same below) is diluted with water to make solution II (containing SiO 2 40 g / L, pH 13.58). Under vigorous stirring, solution II and 1.75 g of ferrous sulfate (analytically pure, Beijing Yili Fine Chemicals Co., Ltd., the same below) were added to solution I to make transparent silicon-aluminum mixed solution III, silicon-aluminum...

Embodiment 2

[0080] 3127g Al 2 (SO 4 ) 3 18H 2 O and 338 g of 98% by weight sulfuric acid were dissolved in 4968 g of deionized water to make solution I (pH 0.70, Al 2 o 3 The content is 95 g / L). Use 2070g water glass (industrial product, modulus: 3.26, SiO 2 279.8 g / L, Na 2 O 87.3 grams per liter, iron oxide content 0.085% by weight, the same below) is diluted with water, then adds the ferrous sulfate of 1.75g ​​to make solution II (containing SiO 2 80 g / L, pH 12.61). Add solution II to solution I under vigorous stirring to make transparent silicon-aluminum mixed solution III, the pH of silicon-aluminum mixed solution III is 2.2, SiO 2 / Al 2 o 3 The mass ratio was 1.0.

[0081] Under the stirring speed of 3000RPM, dilute ammonia water (containing 5% by weight of NH 3 ) and the silicon-aluminum mixed solution III are mixed, wherein the ammonia water is added at a rate to adjust the pH of the mixed solution within the range of 8.0±0.3.

[0082] After the addition of ammonia w...

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Abstract

The invention provides a hydroprocessing catalyst and a preparation method of the hydroprocessing catalyst, and a preparation method of lubricant base oil. The hydroprocessing catalyst contains a silicon aluminum composite material carrier and active components loaded on the carrier, wherein the active components are Family VIII metallic elements, Family VIB metallic elements and phosphorus, an acid point index of the silicon aluminum composite material carrier is not lower than 80 and is the numerical value obtained by multiplying the ratio of Si-O-Al bond absorbance to Si-O-Si bond absorbance by 100, wherein the Si-O-Al bond absorbance refers to the high strength of the vibratory absorption peak of Si-O bond of Si-O-Al in an infrared absorption spectrum of the silicon aluminum compositematerial carrier, and the Si-O-Si bond absorbance refers to the high strength of the vibratory absorption peak of Si-O bond of Si-O-Si in the infrared absorption spectrum of the silicon aluminum composite material carrier. The hydroprocessing catalyst provided by the invention can obtain, at high yield, lubricant base oil having high viscosity index and low contents of sulfur, nitrogen and aromatic hydrocarbon.

Description

technical field [0001] The invention relates to a hydrogenation treatment catalyst, a preparation method thereof, and a preparation method of lubricating oil base oil. Background technique [0002] Due to the increasingly stringent environmental protection and energy saving regulations and the improvement of engine power performance, the requirements for the quality and performance of lubricating oil are getting higher and higher, especially for API II and API II + The demand for oil will grow more rapidly. Hydrogenation lubricating oil production process is the production of API II and API II + One of the most advanced processes for quasi-lubricating base oils. From the perspective of the chemical process of lubricating oil hydrotreating, the hydrotreating catalyst for producing lubricating oil base oil needs to have two characteristics: one is a strong hydrogenation function to meet the requirements of desulphurization and deNation; The acidic function of the catalyst s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J27/19B01J21/12C10G49/04B01J32/00
Inventor 李洪宝董松涛曾双亲李明丰夏国富王鲁强黄卫国郭庆洲董维正
Owner CHINA PETROLEUM & CHEM CORP
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