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A catalyst for converting vegetable oil into lubricating oil and preparation method thereof

A technology of catalysts and oxides, applied in the direction of physical/chemical process catalysts, preparation of liquid hydrocarbon mixtures, metal/metal oxides/metal hydroxide catalysts, etc., can solve poor biological tolerance, poor oxidation stability, low temperature flow Poor performance and other problems, to achieve the effect of good catalytic performance

Active Publication Date: 2022-01-21
SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the disadvantages of vegetable oils such as poor low temperature fluidity (pour point), poor oxidation stability, poor biological tolerance and poor hydrolytic stability may limit their direct use as lubricant base stocks

Method used

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  • A catalyst for converting vegetable oil into lubricating oil and preparation method thereof
  • A catalyst for converting vegetable oil into lubricating oil and preparation method thereof
  • A catalyst for converting vegetable oil into lubricating oil and preparation method thereof

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preparation example Construction

[0030] The invention provides a method for preparing a catalyst for converting vegetable oil into lubricating oil, the preparation method at least comprising:

[0031] First, step S1 is performed, mixing the silicon source and deionized water, stirring evenly, and adding acid to the first pH value to obtain silica sol.

[0032] As an example, the silicon source includes a mixture of one or more of sodium silicate, silica sol, and tetraethyl orthosilicate.

[0033] As an example, the first pH value is between 1-3. Preferably, the first pH value is 2.

[0034] As an example, the acid includes one of hydrochloric acid and nitric acid.

[0035] Then perform step S2, mix the aluminum source and deionized water, and stir evenly to obtain an aluminum solution.

[0036] As an example, the aluminum source includes one or more mixtures of aluminum isopropoxide, aluminum nitrate and aluminum trichloride.

[0037] In this step, the aluminum source and deionized water can be mixed, heate...

Embodiment 1

[0058] Use a pipette gun to pipette 0.8mL of tetraethyl orthosilicate and add it to 0.4mL of water and stir evenly at 40°C. At the same time, use a pipette to absorb a certain amount of nitric acid and slowly add it to the above solution to make the pH reach 2. Silica sol appears . Then weigh 25.92 g of aluminum nitrate nonaqueous water with an analytical balance, add it to 15.6 mL of deionized water, and heat it to 40° C. to completely dissolve it. Then the two were mixed and heated and stirred at 40° C. for 1 h. Then use a straw to absorb a certain amount of ammonia water, adjust the pH of the above solution to 8, and aluminum sol appears, leave it at 40°C for 1 hour, filter and wash, and dry it in a muffle furnace at 550°C for 3 hours to obtain 1SiO 2 -9Al 2 o 3 sample. Weigh 1.5g1SiO with a balance 2 -9Al 2 o 3 The sample was mixed with 0.1932g ammonium molybdate by impregnation method and stirred at room temperature for 24 hours, then stirred and evaporated to dryn...

Embodiment 2

[0060] Use a pipette to pipette 2.4mL of tetraethyl orthosilicate and add it to 1.2mL of water and stir evenly at 40°C. At the same time, use a pipette to absorb a certain amount of nitric acid and slowly add it to the above solution to make the pH reach 2. Silica sol appears . Then weigh 18.81 g of aluminum nitrate nonaqueous water with an analytical balance, add it to 14.8 mL of deionized water, and heat it to 40° C. to completely dissolve it. Then the two were mixed and heated and stirred at 40° C. for 1 h. Then use a straw to absorb a certain amount of ammonia water, adjust the pH of the above solution to 8, and aluminum sol appears, leave it at 40°C for 1 hour, filter and wash, and dry it in a muffle furnace at 550°C for 3 hours to obtain 3SiO 2 -7Al 2 o 3 sample. Weigh 1.5g3SiO with a balance 2 -7Al 2 o 3 The sample was mixed with 0.1932g ammonium molybdate by impregnation method and stirred at room temperature for 24 hours, then stirred and evaporated to dryness ...

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Abstract

The invention provides a method for preparing a catalyst for converting vegetable oil into lubricating oil. The preparation method at least includes: first mixing a silicon source and deionized water, stirring evenly, and adding an acid to a first pH value to obtain a silicon Sol; then aluminum source and deionized water are mixed, stirred evenly, obtain aluminum solution; Then described aluminum solution and described silica sol are mixed, then add alkali to the second pH value, obtain aluminum-silicon mixed sol; The aluminum-silicon mixed sol is washed, dried and calcined in sequence to obtain SiO 2 ‑Al 2 o 3 carrier; finally the metal loading precursor solution is loaded onto the SiO 2 ‑Al 2 o 3 support, and then calcined to obtain metal oxide-supported SiO 2 ‑Al 2 o 3 catalyst. The invention proposes a new method for preparing a catalyst for converting vegetable oil into lubricating oil, and the prepared catalyst has better catalytic performance when used in the oligomerization reaction of ricinoleic acid methyl ester.

Description

technical field [0001] The invention belongs to the technical field of oligomerization catalyst preparation, in particular to a catalyst for converting vegetable oil into lubricating oil and a preparation method thereof. Background technique [0002] Lubricating oil is regarded as the blood that maintains the normal operation of machinery, and plays a pivotal role in the development of modern social economy. The vast majority of traditional lubricating oils use mineral oil as the base oil, which has played a huge role in reducing friction and wear, saving energy, prolonging machine life and meeting the lubrication needs of harsh working conditions. However, when it is used in large quantities , will inevitably enter the environment through various channels such as transportation, leakage, splashing, spillage or improper discharge, seriously polluting soil and water resources, and destroying the ecological environment and ecological balance. Judging from the trend of social ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/06B01J23/10B01J23/28B01J23/44B01J23/755C10G3/00C10M109/02C10M105/40
CPCB01J23/002B01J23/28B01J23/755C10G3/47C10G3/44B01J23/10B01J23/44B01J23/06C10M109/02C10M105/40B01J2523/00C10M2207/2895B01J2523/31B01J2523/41B01J2523/68Y02P30/20
Inventor 陈新庆薛文杰丘明煌孙予罕
Owner SHANGHAI ADVANCED RES INST CHINESE ACADEMY OF SCI
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