Method for preparing high acid value oil hydrogenation catalyst

A technology of hydrogenation catalyst and high acid value grease, applied in the field of catalysis, can solve the problems of high price and loss of competitive advantages of the catalyst, and achieve the effects of stable physical property parameters, not easy to be oxidized, and beneficial to industrial production.

Inactive Publication Date: 2013-01-30
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In terms of improvement of the active component, as the Chinese patent announcement 85103783 announced a catalyst with Ni-Pd as the active component, the catalyst has higher activity, but the price of Pd is too high, so that the catalyst loses its competitive advantage

Method used

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  • Method for preparing high acid value oil hydrogenation catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Prepare alkaline precipitant solution:

[0018] Weigh 20g of sodium carbonate, pour it into 500ml of deionized water, and stir until completely dissolved.

[0019] Prepare nickel salt solution:

[0020] Weigh 45gNiSO 4· 6HO 2 , Pour into 1600ml deionized water and stir until completely dissolved.

[0021] Prepare iron salt solution:

[0022] Weigh 2.5gFe 2 (SO 4 ) 3 Pour into 200ml deionized water and stir until completely dissolved.

[0023] The above-mentioned nickel salt solution and iron salt solution are fully mixed.

[0024] Pour the prepared alkaline precipitant solution into the reaction kettle, heat to 65°C, slowly add the alkaline precipitant solution while stirring, control the time for 1 hour, and quickly adjust the pH of the solution to 7-9 after adding , and then add an alumina carrier, age for 30 minutes, filter, and wash with deionized water until there is no acid ion.

[0025] Weigh 50 g of the above filter cake, put it in an oven, dry at 110...

Embodiment 2

[0028] Prepare alkaline precipitant solution:

[0029] Weigh 20g of sodium carbonate, pour it into 500ml of deionized water, and stir until completely dissolved.

[0030] Prepare nickel salt solution:

[0031] Weigh 45gNiSO 4· 6HO 2 , Pour into 1600ml deionized water and stir until completely dissolved.

[0032] Prepare iron salt solution:

[0033] Weigh 2.5gFe 2 (SO 4 ) 3 Pour into 200ml deionized water and stir until completely dissolved.

[0034] To prepare the magnesium salt solution:

[0035] Weigh 0.5gMgSO 4 6H 2 Pour O into 100ml deionized water and stir until completely dissolved.

[0036] The above-mentioned nickel salt solution, iron salt solution and magnesium salt solution are fully mixed.

[0037] Pour the prepared alkaline precipitant solution into the reaction kettle, heat to 65°C, slowly add the alkaline precipitant solution while stirring, control the time for 1 hour, and quickly adjust the pH of the solution to 7-9 after adding , and then add an...

Embodiment 3

[0041] 1. Catalyst for evaluation

[0042] Catalyst A, Catalyst B and Current Industrial Catalyst C

[0043] 2. Raw materials for catalyst evaluation

[0044] Palm oil, free acid content 15%

[0045] 3. Catalyst evaluation conditions

[0046] Take an appropriate amount of catalyst and add it to 200g of the above-mentioned palm oil, and use N 2 After replacing the air in the autoclave, the temperature was raised to 180°C, stirred, and H 2 , the pressure is 2.0MPa.

[0047] , Catalyst evaluation results

[0048] In different hydrogenation time periods, the iodine value (gI / 100g) control data of the sample after hydrogenation is as follows:

[0049]

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Abstract

The invention relates to a method for preparing high acid value oil hydrogenation catalyst. The method comprises the following steps: making macro-pore-volume aluminum oxide as a carrier; making nickel and iron as active components; and making magnesium as auxiliary agent so as to prepare catalyst. A catalyst preparation method is characterized by simple operation, easy filter, high activity and good selectivity; compared with other kindred catalyst, the use quantity of the catalyst is reduced by 15-20%.

Description

technical field [0001] The invention relates to the technical field of catalysis, and provides a preparation method of a high-acid value oil hydrogenation catalyst. The active components are nickel and iron, the auxiliary agent is magnesium, and the carrier is alumina. Background technique [0002] Fat hydrogenation is the process of partially or completely hydrogenating unsaturated animal and vegetable oils through catalysts to produce industrial hardened oils such as soap oils, extremely hydrogenated oils and edible hydrogenated oils such as margarine, shortening, cocoa butter substitute wait. At present, nickel-diatomite or Ni-Cu-diatomite catalysts are usually used in industrial production. Due to the different acid content in different oils, oils with high acid content (free acid content greater than 10%) will easily reduce the activity of the catalyst during the hydrogenation process and increase the amount of catalyst used. [0003] In terms of finding new carriers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755C11C3/12
Inventor 陈永生于海斌孙春晖许岩刘伟刘冬冬
Owner CHINA NAT OFFSHORE OIL CORP
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