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Sulfur and mercury removing agent

A mercury-removal agent and mercury-removal technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of low desulfurization and mercury removal efficiency, low sulfur capacity and mercury capacity, etc., so as to improve the desulfurization and mercury removal. efficiency, improve dispersion, and improve the effect of desulfurization and mercury removal

Active Publication Date: 2013-01-30
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 the low sulfur capacity and mercury capacity of the desulfurization and mercury removal agent in the prior art, and the problem that the desulfurization and mercury removal efficiency is not high; Desulfurization and mercury removal agent with a rate of over 99% and especially suitable for any light hydrocarbon desulfurization and mercury removal pretreatment

Method used

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  • Sulfur and mercury removing agent
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  • Sulfur and mercury removing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Choose 80 mesh, specific surface area is 20m 2 / g, the pore volume is 0.1cm 3 / g microspheres γ-Al 2 o 3 Carrier 5g is put into the manganese acetate solution of 10ml 2.88mol / L (Mn(CH 3 COO) 2 4H 2 (0), soak for 1 hour, after the impregnating solution is completely immersed in the carrier, take out the carrier, and dry it at 100°C for 5 hours to remove the moisture in the carrier; then the dried γ-Al loaded with manganese nitrate 2 o 3 The carrier is activated by roasting at 500°C for 6 hours under aerobic conditions to decompose manganese nitrate, and then obtain γ-Al loaded with manganese dioxide active components 2 o 3 carrier. In the above process, an oxygen environment is preferred when the carrier impregnated with the impregnating solution is dried and calcined.

[0026] 54g of ferric chloride hexahydrate and 32g of sodium carbonate were mixed and kneaded for 1 hour. The kneading time could be selected between 1 and 5 hours. After the kneading was finished,...

Embodiment 2

[0029] Choose 80 mesh, specific surface area is 150m 2 / g, the pore volume is 1.0cm 3 / g microspheres γ-Al 2 o 3 Carrier 5g is put into the manganese nitrate solution of 1ml 0.014mol / L (Mn(NO 3 ) 2 4H 2 (0), soak for 1 hour, after the impregnating solution is completely immersed in the carrier, take out the carrier, and dry it at 100°C for 5 hours to remove the moisture in the carrier; then the dried γ-Al loaded with manganese nitrate 2 o 3 The carrier is activated by roasting at 300°C for 10 hours under aerobic conditions to decompose manganese nitrate, and then obtain γ-Al loaded with manganese dioxide active components 2 o 3 carrier. In the above process, an oxygen environment is preferred when the carrier impregnated with the impregnating solution is dried and calcined.

[0030] Mix 8.4g of ferric chloride hexahydrate and 5g of sodium carbonate and knead for 1.5 hours. The kneading time can be selected between 1 and 5 hours. After the kneading is completed, the ab...

Embodiment 3

[0033] Select 80 mesh, specific surface area is 250m 2 / g, the pore volume is 1.5cm 3 / g microspheres γ-Al 2 o 3 Carrier 5g is put into the manganese nitrate solution of 10ml 1.047mol / L (Mn(NO 3 ) 2 4H 2 (0), soak for 0.5 hours, after the above impregnating solution is completely immersed in the carrier, take out the carrier, dry it at 105°C for 4 hours, remove the moisture in the carrier; then put the dried γ-Al loaded with manganese nitrate 2 o 3 The carrier is activated by roasting at 300°C for 9 hours under aerobic conditions to decompose manganese nitrate, and then obtain γ-Al loaded with manganese dioxide active components 2 o 3 carrier. In the above process, an oxygen environment is preferred when the carrier impregnated with the impregnating solution is dried and calcined.

[0034] 24.5g ferric chloride hexahydrate and 14.5g sodium carbonate were mixed and kneaded for 2 hours, the kneading time can be selected between 1 to 5 hours, after the kneading is finish...

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Abstract

The invention relates to a sulfur and mercury removing agent, which consists of a carrier and active ingredients, wherein the carrier can be a single carrier or is formed by two or more kinds of carriers; the carrier accounts for 10 to 80 percent of the total weight of the sulfur and mercury removing agent; and the active ingredients include 0.1 to 40 weight percent of manganese dioxide MnO2 and 0.1 to 60 weight percent of magnetic iron oxide Fe21.333O32. The invention also discloses a method for preparing the sulfur and mercury removing agent. The sulfur and mercury removing agent prepared bythe method has high sulfur capacity and high mercury capacity, has a sulfur and mercury removal efficiency of over 99 percent and can be widely used in sulfur and mercury removing treatment devices for flue gases of coal burning power plants and light dydrocarbons of oil refining and chemical plants.

Description

technical field [0001] The invention relates to a purifying agent for desulfurization and demercuration of light hydrocarbons in coal-fired thermal power plants, oil refineries and chemical plants, and belongs to the technical field of chemical adsorption purification. Background technique [0002] At present, most of the research on desulfurization and mercury removal agents is concentrated in the field of flue gas desulfurization and mercury removal, but there are not many researches on mercury removal in the petroleum processing industry. In the prior art, for flue gas desulfurization and mercury removal, solid desulfurization and mercury removal adsorbents are often used to remove sulfides and mercury in the flue gas. For flue gas desulfurization and demercury treatment, most of them use separate desulfurizers and mercury removal agents; the research on flue gas desulfurizers has been relatively mature, and commonly used flue gas desulfurizers include limestone, magnesiu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/50B01D53/64
Inventor 杜文庆刘振义
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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