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Special efficient arsenic removing agent for oil product

A high-efficiency, arsenic-removing technology, applied in the treatment of hydrocarbon oil, refined hydrocarbon oil, petroleum industry, etc., can solve the problems of poor arsenic removal effect, and achieve the effects of avoiding pulverization and collapse, increasing voids, and low density

Inactive Publication Date: 2017-09-26
PINGXIANG ANFA COKING ENVIRONMENT PROTECTION FILLING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems caused by the poor effect of crude oil hydrogenation desulfurization treatment on arsenic removal in the above-mentioned prior art, the present invention provides a kind of material which not only has light specific gravity, high porosity and good strength, but also has a three-dimensional network interconnection on the inside and the surface. Pore ​​structure, with super capacity to accommodate impurities, can make the arsenic content of crude oil reach 0.1mg / m after dearsenic 3 The following high-efficiency arsenic removal agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1, the special high-efficiency arsenic removal agent for oil is composed of 35wt% activated carbon powder, 50wt% pseudoboehmite, 3wt% rare earth magnesium alloy powder, 3wt% zirconia powder and 9wt% kaolin. Composed of raw materials, its interior and surface have three-dimensional mesh honeycomb openings, and it is prepared according to the following method steps:

[0022] a. Active carbon powder, pseudo-boehmite, rare earth magnesium alloy powder, zirconia powder and kaolin raw materials are mixed and sieved by ball milling to make powder by weight percentage,

[0023] b. Add 4% of the total weight of the powder into methylcellulose, 2% of polyurethane, 3% of lubricant and an appropriate amount of water, mix them by ball milling, and make mud through mud refining and aging.

[0024] c. The mud material is granulated or molded into a small ball green body. After the small ball green body is dried and shaped, it is then placed in a calciner, heated to 500-600 ° C...

Embodiment 2

[0031] Example 2, the special high-efficiency arsenic removal agent for oil is composed of 30wt% activated carbon powder, 55wt% pseudoboehmite, 5wt% rare earth magnesium alloy powder, 5wt% zirconia powder and 5wt% kaolin. Composed of raw materials, its interior and surface have three-dimensional mesh honeycomb openings, and it is prepared according to the following method steps:

[0032] a. Active carbon powder, pseudo-boehmite, rare earth magnesium alloy powder, zirconia powder and kaolin raw materials are mixed and sieved by ball milling to make powder by weight percentage,

[0033] b. Add 3% methyl cellulose, 3% polyurethane, 2% lubricant and appropriate amount of water to the powder, mix them by ball milling, and make mud through mud refining.

[0034] c. The mud material is granulated or molded into a small ball green body. After the small ball green body is dried and shaped, it is then placed in a calciner, heated to 500-600 ° C for 2-4 hours, and cooled out of the furna...

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PUM

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Abstract

The invention discloses a special efficient arsenic removing agent for an oil product. The special efficient arsenic removing agent is prepared by the following steps: preparing a powder material by taking 30 weight percent to 40 weight percent of active carbon powder, 40 weight percent to 60 weight percent of pseudo-boehmite, 2 weight percent to 5 weight percent of rare-earth magnesium alloy powder, 2 weight percent to 5 weight percent of zirconium oxide powder and 3 weight percent to 10 weight percent of kaolin as raw materials; adding methyl cellulose which accounts for 3 percent to 7 percent of the total mass of the powder material, polyurethane which accounts for 2 percent to 5 percent of the total mass of the powder material, a lubricant which accounts for 1 percent to 3 percent of the total mass of the powder material and a proper amount of water into the powder material; carrying out ball milling and pelleting to form small balls; calcining the small balls; adding nickel oxide powder and iron oxide powder into a potassium permanganate solution and a copper sulfate solution respectively to prepare a dissolved solution; immersing the small balls into the dissolved solution; keeping heat and firing to obtain the special efficient arsenic removing agent for the oil product. The special efficient arsenic removing agent is used for arsenic removing treatment of crude oil; two times of arsenic removal are carried out and the content of arsenic in the crude oil is reduced to be 0.1mg / m<3> or below, so that the arsenic content in the crude oil meet technical requirements of dehydration and desulfurization and the dehydration and desulfurization reaction of the crude oil is normally carried out.

Description

technical field [0001] The invention relates to a catalyst protecting agent used in chemical industry, in particular to an arsenic-removing agent used for oil treatment. Background technique [0002] As we all know, fixed bed reactor is an important equipment and device in oil refining, petrochemical, chemical, environmental protection and metallurgy industries. It is mainly used for catalytic reactions in the tower, such as catalytic reforming, hydrocracking and refining, and hydrodesulfurization in oil refining. And chemical ethylene oxidation, ethylbenzene dehydrogenation, etc. In the process of processing, with the decline of crude oil quality, especially the increase of organic arsenic substances such as arsenic hydrogen, methyl hydride arsenic and arsenic in crude oil, when the arsenic content in crude oil is 0.1mg / m 3 In the above cases, because arsenic and VIII elements are easy to form coordination bonds, the VIII elements are poisoned and inactivated, and the cata...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C10G25/00
CPCB01J20/20B01J20/02B01J20/06B01J20/08B01J20/12B01J2220/42B01J2220/4806B01J2220/4812C10G25/003C10G2300/1033C10G2300/202
Inventor 李永忠刘启良邱振华阳晃亮
Owner PINGXIANG ANFA COKING ENVIRONMENT PROTECTION FILLING