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A kind of ammonia absorbing material, its preparation method and application

A technology of calcium chloride and magnesium chloride, which is applied in the field of ammonia-absorbing materials, can solve problems such as unfavorable large-scale production filling, long ammonia filling time, and slow speed, so as to facilitate large-scale production filling, improve ammonia filling speed and Efficiency, reduction of ammonia charging time

Active Publication Date: 2019-10-11
科林蓝泰环境科技(长春)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, strontium chloride can be used as an inorganic ammonia absorbing material in automobile exhaust treatment systems. However, in practical applications, when charging ammonia to an ammonia storage tank with built-in strontium chloride, there is a long time for ammonia charging (generally more than 20 hours) ), slow speed, low efficiency and other problems, which are not conducive to large-scale production filling

Method used

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Examples

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preparation example Construction

[0023] The invention also provides a preparation method of the ammonia-absorbing material, comprising the following steps: mixing and drying strontium chloride, calcium chloride, magnesium chloride and barium chloride to obtain the ammonia-absorbing material.

[0024] Wherein, the consumption and source of the strontium chloride, calcium chloride, magnesium chloride and barium chloride are consistent with the above-mentioned technical scheme, and will not be repeated here.

[0025] In the present invention, strontium chloride, calcium chloride, magnesium chloride and barium chloride are mixed and dried to obtain the ammonia absorbing material. Wherein, the mixing method is not particularly limited, as long as the raw materials can be made uniform. In the present invention, the drying temperature is preferably 250-270° C., and the drying time is preferably 2-3 hours.

[0026] The present invention also provides an application of the ammonia-absorbing material described in the ...

Embodiment 1

[0031] Mix 11.55Kg of strontium chloride, 8.25Kg of calcium chloride, 9.9Kg of magnesium chloride, and 3.3Kg of barium chloride evenly, and dry at 260°C for 2 hours to obtain an ammonia-absorbing material. Put the obtained ammonia-absorbing material in an industrial ammonia storage tank, fill the ammonia storage tank with 28.66Kg of ammonia gas at 7MPa, and record the ammonia filling time. The results show that all the ammonia can be filled within 17 hours of ammonia filling.

Embodiment 2

[0033] Mix 11.55Kg of strontium chloride, 9.9Kg of calcium chloride, 3.3Kg of magnesium chloride, and 8.25Kg of barium chloride evenly, and dry at 260°C for 2 hours to obtain an ammonia-absorbing material. Put the obtained ammonia-absorbing material in an industrial ammonia storage tank, fill the ammonia storage tank with 28.66Kg of ammonia gas at 7MPa, and record the ammonia filling time. The results show that all the ammonia can be filled within 16 hours of ammonia filling.

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PUM

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Abstract

An ammonia absorbing material, a preparing method thereof and applications of the material are provided. The ammonia absorbing material includes strontium chloride, calcium chloride, magnesium chloride and barium chloride, wherein the sum of the mass of the calcium chloride, the mass of the magnesium chloride and the mass of the barium chloride is 15-90% of the mass of the material, and the mass of the strontium chloride is 10-85% of the mass of the material. By adoption of the material, the ammonia absorption time can be shortened, and the ammonia charging speed and efficiency are increased.

Description

technical field [0001] The invention relates to the technical field of automobile tail gas treatment, in particular to an ammonia absorbing material, its preparation method and application. Background technique [0002] With the progress of the economy and society, the rapid development of the automobile industry, the number of automobiles is increasing day by day, and the environmental pollution caused by automobile exhaust is also becoming more and more serious. Therefore, the purification of automobile exhaust has attracted more and more attention. [0003] The general way to treat automobile exhaust is to install an ammonia storage tank in the automobile exhaust treatment system, in which ammonia gas is stored, and when necessary, the ammonia gas is released and reacts with the catalyst to remove NO x Harmful substances, so as to achieve the purpose of purifying exhaust gas. Usually, some ammonia absorbing materials are placed in the ammonia storage tank to help the am...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/04B01J20/30
Inventor 王吉于翔宇黄殿洋宋思宇王磊李金鹏郭秀强
Owner 科林蓝泰环境科技(长春)有限公司
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