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A kind of white oil hydrogenation production method based on composite catalyst

A composite catalyst and production method technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. It can improve the uniformity of the load, reduce the color value, and increase the load capacity.

Active Publication Date: 2020-06-30
东营奥星石油化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In recent years, due to the inferior quality of raw oil for hydrogenation of white oil, the increase of aromatics content, and the fluctuation of sulfur and nitrogen content, it is difficult to meet the production requirements with existing catalysts

Method used

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  • A kind of white oil hydrogenation production method based on composite catalyst
  • A kind of white oil hydrogenation production method based on composite catalyst
  • A kind of white oil hydrogenation production method based on composite catalyst

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Experimental program
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Effect test

Embodiment 1

[0029] The preparation of embodiment 1 catalyst

[0030] The first step, the preparation of the carrier: prepare an aqueous solution containing 0.4mol / L aluminum isopropoxide, 1g / L monodisperse polystyrene microspheres (average particle size is 5-10μm), and 3g / L water-soluble starch, Slowly add HCl dropwise, adjust the pH to 4, and then heat up to carry out the hydrolysis reaction. The temperature of the hydrolysis reaction is 65°C, and the reaction time is 1h. After cooling down, the aging reaction is carried out. The temperature of the aging reaction is 20°C, and the reaction time is 25h; then the aged product was evaporated under reduced pressure to remove the solvent, dried, and then roasted, the roasting temperature was 300°C, and the roasting time was 0.5h, to obtain a porous hollow alumina carrier;

[0031] Step 2, surface carboxylation treatment of the carrier: mix the porous hollow alumina carrier and stearic acid according to the weight ratio of 1:0.2, and perform ba...

Embodiment 2

[0035] The preparation of embodiment 2 catalyst

[0036] The first step, the preparation of the carrier: prepare an aqueous solution containing 0.6mol / L aluminum isopropoxide, 1.5g / L monodisperse polystyrene microspheres (average particle size is 5-10μm), and 5g / L water-soluble starch , slowly add HCl dropwise, adjust the pH to 6, and then heat up to carry out the hydrolysis reaction. The temperature of the hydrolysis reaction is 75°C, and the reaction time is 3h. After cooling down, the aging reaction is carried out. The temperature of the aging reaction is 25°C, and the reaction time is is 30h; then the aged product is evaporated under reduced pressure to remove the solvent, then dried, and then roasted, the roasting temperature is 350°C, and the roasting time is 2h, to obtain a porous hollow alumina carrier;

[0037] Step 2, surface carboxylation treatment of the carrier: mix the porous hollow alumina carrier and stearic acid according to the weight ratio of 1:0.3, and perf...

Embodiment 3

[0041] The preparation of embodiment 3 catalyst

[0042]The first step, the preparation of the carrier: prepare an aqueous solution containing 0.5mol / L aluminum isopropoxide, 1.2g / L monodisperse polystyrene microspheres (average particle size is 5-10μm), and 4g / L water-soluble starch , slowly add HCl dropwise, adjust the pH to 5, and then heat up to carry out the hydrolysis reaction. The temperature of the hydrolysis reaction is 70°C, and the reaction time is 2h. After cooling down, the aging reaction is carried out. The temperature of the aging reaction is 22°C, and the reaction time is It is 28h; then the aged product is evaporated under reduced pressure to remove the solvent, then dried, and then roasted, the roasting temperature is 320°C, and the roasting time is 1h, to obtain a porous hollow alumina carrier;

[0043] Step 2, surface carboxylation treatment of the carrier: mix the porous hollow alumina carrier and stearic acid according to the weight ratio of 1:0.25, and p...

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Abstract

The invention relates to a white oil hydrogenation production method based on a composite catalyst and belongs to the technical field of white oil processing. A one-step hydrogenation method is adopted to conduct hydrogenation on hydrocracking tail oil to prepare white oil, the adopted composite catalyst uses polymeric microspheres as a template, the structure with hollow inside and porous outsideis formed through sintering, the supporting amounts of the activity centers can be effectively increased, and the reaction efficiency can be improved. In the preparation of the catalyst, the surfacecan carry a large number of carboxyl groups by modifying aluminum oxide microspheres with stearic acid, meanwhile a sol method is adopted to prepare the activity centers, the surfaces of oxide in metal sol and hydroxide particles carry a large numbers of hydroxyl groups, and the carboxyl groups and hydroxyl groups can perform esterification reaction in an ethyl alcohol system in the hydrothermal process, so that the particles in the sol are fixed to the surface of a carrier, and the supporting amounts and supporting uniformity of the activity centers on the surface of the carrier can be effectively improved. The adopted catalyst has the advantages of being high in catalytic reaction activity and good in oil product quality.

Description

technical field [0001] The invention relates to a white oil hydrogenation production method based on a composite catalyst, belonging to the technical field of white oil processing. Background technique [0002] White oil is a kind of petroleum product obtained by deep refining to remove impurities such as aromatic hydrocarbons and sulfides in lubricating oil fractions. It is colorless, odorless and stable in chemical properties, and is widely used in chemical industry, daily necessities, food, medicine, textile and agriculture and other fields. Depending on the application and the degree of refinement, white oil can be divided into categories such as industrial, cosmetic, food, and pharmaceutical grades. Among them, the refining degree of food and pharmaceutical grade white oil is the deepest. White oil as process oil is mainly used in aluminum foil and aluminum plate rolling, instrument calibration oil, environmental pollution-free drilling oil slurry, medium for printing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G45/08B01J23/888
CPCB01J23/888C10G45/08
Inventor 燕翔孙建设
Owner 东营奥星石油化工有限公司
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