Simultaneous desulfurization and denitration catalyst and preparation method thereof

A desulfurization and denitrification, catalyst technology, applied in the direction of chemical instruments and methods, physical/chemical process catalysts, separation methods, etc., can solve the problems of large catalyst bed resistance, low mechanical strength, uneven pressure, etc., and achieve simple preparation and regeneration methods , High mechanical strength, easy to obtain effect

Inactive Publication Date: 2013-03-20
BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of traditional carbonaceous catalysts such as low mechanical strength, easy wear, large catalyst bed resistance, and uneven pressure, and provide a simultaneous desulfurization and denitrification catalyst and its preparation method

Method used

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  • Simultaneous desulfurization and denitration catalyst and preparation method thereof
  • Simultaneous desulfurization and denitration catalyst and preparation method thereof

Examples

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Embodiment 1

[0015] Example 1 Simultaneous desulfurization and denitrification catalyst Nd 2 o 3 - Preparation of CoO / AC:

[0016] Weigh 11.5gNd(NO 3 ) 3 ·5H 2 0 and 11.4gCo (NO 3 ) 2 ·6H 2 0 was dissolved in 80ml of deionized water and heated to 75°C, then 10g of polyvinyl alcohol with a molecular weight of 80,000 was added, stirred until the polyvinyl alcohol was completely dissolved, then 50g of activated carbon powder was put into the above viscous mixed solution and stirred evenly, and squeezed After forming the strips, dry them at 80°C for 6 hours, then dry them at 150°C, and finally bake them at 200°C for 2 hours and then at 900°C for 4 hours under the protection of nitrogen to obtain a columnar simultaneous desulfurization and denitrification catalyst with a diameter of 2 cm and a length of 2 to 5 cm. 10%Nd 2 o 3 -5%CoO / AC, namely AC, Nd 2 o 3 The weight parts with CoO are 85, 10 and 5 respectively, and the specific surface area of ​​the catalyst is 361.9m 2 g -1 . ...

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Abstract

The invention discloses a simultaneous desulfurization and denitration catalyst and preparation method of the simultaneous desulfurization and denitration catalyst. The desulfurization and denitration catalyst is composed of 60-80 parts by weight of carrier activated carbon (AC), 2-40 parts by weight of active ingredient neodymium oxide (Nd 203) and 0-20 parts by weight of promoter cobalt monoxide (CoO), wherein the total parts by weight of the activate ingredient and the prompter is 2-40. Detailed preparation method is explained in an introduction book. The simultaneous desulfurization and denitration catalyst and preparation method of the simultaneous desulfurization and denitration catalyst has the advantages of being wide in catalyst source, easy to obtain, easy in a preparation and regeneration method, high in catalyst mechanical strength, small in erosion, high in using efficiency of raw materials, suitable for mass production, high in catalyst activity, wide in operation temperature range, capable of being tested in a simulation test for a long time within a temperature range from 350 DEG C to 500 DEG C, and capable of acquiring a desulfurization denitration rate over 90 percent.

Description

technical field [0001] The invention relates to a catalyst and its preparation method, in particular to a simultaneous desulfurization and denitrification catalyst and its preparation, which are used for flue gas treatment. Background technique [0002] The massive consumption of fossil fuels such as coal and oil, while promoting rapid economic development, has also brought about increasingly serious air pollution problems. According to the "2011 Bulletin on the State of the Environment in China", the total national sulfur dioxide emissions in 2011 were 22.179 million tons, and the total nitrogen oxide emissions were 24.043 million tons, and the nitrogen oxide emissions are on the rise. SO 2 and NO X A large amount of emissions will seriously endanger the ecological environment and human health, and it is imminent to control air pollution. [0003] After restricting the emission of sulfur dioxide, the national "Twelfth Five-Year Plan" expressly limited the emission of nit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83B01D53/86B01D53/60
Inventor 宋永吉史风华任晓光
Owner BEIJING INSTITUTE OF PETROCHEMICAL TECHNOLOGY
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