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A method for preparing deoxidizer by using waste oil hydrogenation catalyst

A technology of hydrogenation catalyst and waste oil, applied in the direction of improving process efficiency, can solve the problem of sulfate containing oil and other problems, and achieve the effect of simplifying the operation process and reducing the production cost

Active Publication Date: 2019-06-18
CHIA TAI ENERGY MATERIALS DALIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Xu Delin and others used the acid boiling method to regenerate the hydrogenation waste catalyst. Since the acid-soluble oil can only be separated by extraction, if the separation is not complete, the sulfate will also contain oil.

Method used

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  • A method for preparing deoxidizer by using waste oil hydrogenation catalyst
  • A method for preparing deoxidizer by using waste oil hydrogenation catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] After roasting the waste oil hydrogenation catalyst at 400°C for 3 hours, make it into a concentration of 30% by mass, add sulfuric acid with a mass fraction of 30% to acid-dissolve to pH = 2, and then add sodium carbonate to neutralize to pH After 10, wash, filter, and dry to obtain a dry powder, add kaolin with 15% of the dry powder mass and 50% of the dry powder with water for mixing, and then dry it through an extruder, and bake it at 350°C for 3 hours. into a deoxidizer.

Embodiment 2

[0025] After roasting the waste oil hydrogenation catalyst at 350°C for 3 hours, make it into a mass concentration of 10%, add sulfuric acid with a mass fraction of 50% for acid dissolution, then add potassium carbonate for neutralization until the pH value is 10, and then wash , filter, and dry to obtain dry powder, add kaolin with 15% dry powder mass and 50% water with dry powder mass to mix, dry after forming by extruder, and prepare deoxidizer after roasting at 350°C for 3 hours.

Embodiment 3

[0027] After roasting the waste oil hydrogenation catalyst at 350°C for 2.5 hours, make it into a mass concentration of 20%, add sulfuric acid with a mass fraction of 40% for acid dissolution, then add sodium carbonate for neutralization until the pH value is 11, and then wash , filter, and dry to obtain dry powder, add high-silicon macroporous pseudo-boehmite with 15% of dry powder mass and 50% of dry powder mass for mixing, and dry after being formed by an extruder, and then dried at 350°C Prepare deoxidizer 3.5 hours after roasting.

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Abstract

The invention relates to a method for preparing a deoxidizing agent by utilizing a waste oil and fat hydrogenation catalyst. The method is characterized in that a carbonate mixture prepared from the waste oil and fat hydrogenation catalyst, a small amount of a binding agent and deionized water are taken as the raw materials, the raw materials are uniformly mixed according to a certain ratio, the mixture is subjected to molding by an extruding machine, so as to obtain the deoxidizing agent. Compared with the prior art, the method has the benefits that the waste oil and fat hydrogenation catalyst is taken as the raw materials, so that the novel method for preparing the deoxidizing agent by utilizing the waste oil and fat hydrogenation catalyst is provided, not only is the recycling of the waste oil and fat hydrogenation catalyst realized, but also the operation process is simplified, the production cost is greatly reduced, and meanwhile the deoxidizing agent product can meet the high precision deoxidizing requirement.

Description

technical field [0001] The invention relates to a method of roasting waste oil hydrogenation catalyst, adding alkali to precipitate after acid dissolution, adding binder and water after washing and drying, and extruding to form a deoxidizer. Background technique [0002] Oil hydrogenation is the hydrogenation of liquid oil with a lower melting point under the action of a nickel-based catalyst to convert it into a solid hardened oil with a higher melting point. The industry produces a large amount of waste catalysts every year. The investigation found that the waste catalysts produced by many domestic oil hydrogenation plants after oil hydrogenation are piled up in factories as industrial waste, which not only pollutes the environment, but also wastes resources. [0003] The treatment methods of waste oil hydrogenation catalyst mainly include acid boiling method, incineration method, saponification acid boiling method and organic extraction method. Xu Delin et al. used the a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21C7/06
CPCC21C7/06C21C2250/00Y02P10/20
Inventor 周彤程鸿魁王凤周君梦陈志坚李丽袁龙
Owner CHIA TAI ENERGY MATERIALS DALIAN