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Preparation method of normal temperature composite desulfurating and dearsenic agent

A desulfurization and arsenic removal technology at room temperature, applied in the fields of refining hydrocarbon oil, refining with metal oxides, petroleum industry, etc., can solve problems such as uneven dispersion of active components, performance defects of desulfurization and arsenic products, and reduce pollution , improve the effect of activity

Active Publication Date: 2013-09-11
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome that all the desulfurization and arsenic carrier used in the prior art use finished γ-Al 2 o 3 , the defect of uneven dispersion of active components, and the defect of product performance in the desulfurization and dearsenic agent prepared by using a single preparation method; on this basis, a method for preparing γ-Al 2 o 3 As the carrier, lead oxide, magnetic iron oxide Fe 21.333 o 32 , copper oxide as the active component or lead oxide, magnetic iron oxide Fe 21.333 o 32 The preparation method of the normal temperature desulfurization and arsenic agent that is an active component is coupled by multiple methods, and in the process of preparing the above-mentioned desulfurization and arsenic agent, at the same time, part of the γ-Al 2 o 3 The preparation of the carrier, so that the active ingredient is fully dispersed on the carrier

Method used

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  • Preparation method of normal temperature composite desulfurating and dearsenic agent
  • Preparation method of normal temperature composite desulfurating and dearsenic agent
  • Preparation method of normal temperature composite desulfurating and dearsenic agent

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Choose 80 mesh, specific surface area is 300m 2 / g, the pore volume is 10cm 3 / g microspheres γ-Al 2 o 3 Carrier 9.9g is put into the lead acetate solution (Pb(Ac) of 1000ml 0.18mol / L 2 ·3H 2 (2) in, immerse 3 hours and make active lead acetate solution fully enter microsphere carrier inside; Because the amount of impregnating liquid is selected according to the absorption rate of carrier to active component, so described active component impregnating liquid can one-time immerse Inside the microsphere carrier, no lead acetate waste liquid will remain. After the impregnating solution is completely immersed in the carrier, the carrier is taken out and dried at 100°C for 5 hours to remove the moisture in the carrier; then the dried γ-Al loaded with lead acetate 2 o 3 The carrier is activated by calcination at 400°C for 10 hours under aerobic conditions, so that the lead acetate is decomposed, and then the γ-Al loaded with PbO active components is obtained. 2 o 3 ca...

Embodiment 2

[0024] Select 60 mesh, specific surface area is 20m 2 / g, the pore volume is 0.1cm 3 / g microspheres γ-Al 2 o 3 Carrier 0.066g is put into 9ml 0.05mol / L lead acetate solution (Pb(Ac) 2 ·3H 2 (2) in, immerse 1 hour and make active lead acetate solution fully enter the inside of microsphere carrier; Because the amount of soaking liquid is calculated and selected according to the absorption rate of carrier to active component, so described active component soaking liquid can one-time immerse Inside the microsphere carrier, no lead acetate waste liquid will remain. After the impregnating solution is completely immersed in the carrier, the carrier is taken out and dried at 120°C for 1 hour under aerobic conditions to remove the moisture in the carrier; then the dried γ-Al loaded with lead acetate 2 o 3 The carrier is activated by roasting at 650°C for 5 hours under aerobic conditions to decompose lead acetate, and then obtain γ-Al loaded with PbO active components 2 o 3 car...

Embodiment 3

[0028] Select 120 mesh, specific surface area is 350m 2 / g, the pore volume is 20cm 3 / g γ-Al 2 o 3 3g is put into 100ml 0.89mol / L lead acetate solution (Pb(Ac) 2 ·3H 2 (2), immerse 2.5 hours to make the active lead acetate solution fully enter the inside of the microsphere carrier; because the amount of the impregnating liquid is selected according to the absorption rate of the carrier to the active component, so the active component impregnating liquid can be immersed in one time. Inside the microsphere carrier, no lead acetate waste liquid will remain. After the impregnating solution is completely immersed in the carrier, take out the carrier and dry it at 110°C for 2.5 hours to remove the moisture in the carrier; then bake the dried carrier loaded with lead acetate under aerobic conditions at 500°C Activation for 8 hours decomposes lead acetate, and then obtains γ-Al loaded with PbO active components 2 o 3carrier. In the above process, the preferred environment fo...

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Abstract

The invention relates to a preparation method of a normal temperature desulfurating and dearsenic agent which takes gamma-Al2O3 as a carrier and lead oxide, magnetic Fe21.333O32 and copper oxide as active components or lead oxide, magnetic Fe21.333O32 as active components; the method couples dry leaching method, precipitator method and kneading method to prepare the desulfurating and dearsenic agent which is capable of being used in light dydrocarbon desulfurating and dearsenic pre-treatment at normal temperature to facilitate the prepared desulfurating and dearsenic agent to be evenly dispersed on the carrier, thus improving the stability and activity of the desulfurating and dearsenic agent.

Description

technical field [0001] The invention relates to a preparation method of a purification agent for desulfurization and arsenic removal at normal temperature, and belongs to the technical field of chemical adsorption purification. Background technique [0002] As we all know, petroleum contains a variety of metal impurities and non-metal impurities, such as iron, nickel, vanadium, copper, lead, sulfur, nitrogen, arsenic and so on. In the process of oil processing and refining, most of the impurities can basically be removed to reduce the impurity content to a certain level, but the trace impurities remaining in the processed oil still inevitably affect the quality of the oil. For example, after cracking (catalytic cracking, catalytic cracking, visbreaking and coking) treatment of heavy petroleum fractions, the produced light hydrocarbons (light fractions) still contain a lot of sulfur-containing compounds and arsenic-containing compounds; The most common sulfur compound is hyd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G25/00C10G29/16
Inventor 杜文庆刘振义
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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