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Active carbon desulfurization catalyst and preparation method thereof

A desulfurization catalyst and activated carbon technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve the problems of incomplete desulfurization and complex catalyst preparation process, and achieve low price, high desulfurization efficiency, and raw materials broad effect

Inactive Publication Date: 2011-01-26
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalyst preparation process is complex
[0004] The effective active ingredient of the desulfurization catalyst disclosed in Chinese patent CN1426837A "Desulfurization catalyst and its preparation method and application" is tricalcium ferrite hexahydrate, which can convert mercaptan into disulfide and generate new pollutants , did not achieve the purpose of complete desulfurization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An activated carbon desulfurization catalyst, consisting of 40g of carrier activated carbon and 44.1g of active component metal oxides, wherein the metal oxide mixture consists of 3.5g copper oxide, 15g iron oxide, 6.5g aluminum oxide, 5.7g nickel oxide, 6.9 g manganese oxide, 1.7g cobalt oxide and 4.8g zinc oxide.

[0019] Its preparation method is as follows:

[0020] At room temperature, mix 4g copper oxide, 7g ferric hydroxide, 5g aluminum hydroxide, 6g nickel oxide, 7g manganese oxide, 2g cobalt oxide and 5g zinc oxide, add 200mL 3wt% sulfuric acid solution, at 50 rpm Stir to dissolve the solid to obtain a mixed solution with a total concentration of metal ions of 15%; stir and disperse 40 g of activated carbon in the mixed solution of metal ions at a speed of 50 rpm for 2 hours, then filter the solution, wash, and dry at 80°C for 20 hours ; Calcining the obtained solid mixture at 400° C. for 1 hour to obtain a finished activated carbon desulfurization catalyst. ...

Embodiment 2

[0022] An activated carbon desulfurization catalyst, consisting of 40g of carrier activated carbon and 20.3g of active component metal oxides, wherein the metal oxide mixture consists of 2g copper oxide, 5.6g iron oxide, 1.4g aluminum oxide, 2.5g nickel oxide, 5g Manganese oxide, 0.4g cobalt oxide and 3.4g zinc oxide.

[0023] Its preparation method is as follows:

[0024] At room temperature, mix 5g of copper acetate, 6g of ferric nitrate, 3g of aluminum nitrate, 6g of nickel acetate, 10g of manganese acetate, 1g of cobalt acetate and 8g of zinc nitrate, add 220mL of water, and stir at 250 rpm to dissolve the solid to obtain metal A mixed solution with a total ion concentration of 15%; 40 g of activated carbon was stirred and dispersed in a mixed solution of metal ions at a speed of 400 rpm for 7 hours, then the solution was filtered, washed, and dried at 200 ° C for 2 hours; the obtained solid mixture was Roasting at 1000°C for 2 hours to obtain the finished activated carbo...

Embodiment 3

[0026] An activated carbon desulfurization catalyst, consisting of 45g of carrier activated carbon and 25.68g of active component metal oxides, wherein the metal oxide mixture consists of 2.8g copper oxide, 8.6g iron oxide, 2.8g aluminum oxide, 1.6g nickel oxide, Composition of 6.9g manganese oxide, 0.48g cobalt oxide and 2.5g zinc oxide.

[0027] At room temperature, mix 7g of copper nitrate, 9g of ferric nitrate, 6g of aluminum nitrate, 3g of nickel sulfate, 12g of manganese sulfate, 1g of cobalt sulfate and 5g of zinc sulfate, add 350mL of water, and stir at a speed of 500 rpm to dissolve the solid to obtain A mixed solution with a total concentration of metal ions of 11%; 45 g of activated carbon was stirred and dispersed in the mixed solution of metal compounds at a speed of 500 rpm for 10 hours, then the solution was filtered, washed, and dried at 120 ° C for 4 hours; a solid mixture was obtained Roasting at 600° C. for 4 hours to obtain the finished activated carbon des...

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Abstract

The invention provides an active carbon desulfurization catalyst and a preparation method thereof. The catalyst consists of carrier activated carbon and an active ingredient metal oxide mixture, wherein the metal oxide mixture is the mixture of copper oxide, iron oxide, aluminum oxide, nickel oxide, manganese oxide, cobalt oxide and zinc oxide. The preparation method comprises the following steps of: mixing a copper-containing compound, an iron-containing compound, an aluminum-containing compound, a nickel-containing compound, a manganese-containing compound, a cobalt-containing compound and a zinc-containing compound; dissolving the mixture; dispersing the active carbon into the mixed solution; and filtering, washing, drying and calcining the mixture. The preparation method is simple and the obtained catalyst has high desulfurization efficiency.

Description

technical field [0001] The invention relates to an activated carbon desulfurization catalyst and a preparation method thereof, belonging to the technical field of new materials. Background technique [0002] With the continuous deepening of the industrialization process, sulfur-containing gases (H 2 S, SO 2 , CS 2 , CH 3 SH, etc.) emissions are increasing day by day, and the resulting environmental pollution and harm to human body are becoming more and more serious. At present, the treatment of gases containing hydrogen sulfide and sulfur dioxide in industrial production mainly adopts wet and dry methods, but the wet and dry desulfurization technology has problems such as limited ability to deal with hazardous gases, high energy consumption, difficult regeneration of desulfurizers, and high costs. [0003] Chinese patent CN200910067534.5 discloses "activated carbon desulfurizer and its preparation method" using copper oxide or basic copper carbonate and coal powder or ch...

Claims

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Application Information

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IPC IPC(8): B01J23/889B01D53/48B01D53/86
Inventor 丁彬毛雪俞建勇孙刚
Owner DONGHUA UNIV
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