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Low temperature resistance diesel vehicle tail gas treatment solution

A technology for tail gas treatment and diesel vehicles, applied to the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve problems such as high safety risks, improve economic benefits, reduce usage, and meet the needs of diesel vehicle exhaust treatment Effect

Inactive Publication Date: 2019-04-16
甘肃鑫梓苑环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The invention provides a low-temperature-resistant diesel vehicle exhaust treatment fluid, aiming to solve the problem of the existing low-temperature-resistant urea used in diesel vehicles while realizing the same low-temperature performance and atomization performance by replacing small-molecule liquid alcohol-like substances. Problems with greater safety risks in the processing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A low-temperature-resistant diesel vehicle exhaust gas treatment fluid comprises the following components in parts by weight: 55 parts of ultrapure water, 25 parts of urea, 5 parts of diethanolamine, and 15 parts of betaine.

[0031] The above components are prepared into low temperature resistant diesel vehicle exhaust treatment fluid according to the following method:

[0032] 1) After adding ultrapure water into the emulsification tube, heat the emulsification tank to 20°C;

[0033] 2) Under continuous stirring, add urea and diethanolamine to the emulsification tank in turn, heat to 30°C and keep;

[0034] 3) After the urea and diethanolamine in the emulsification tank are completely dissolved to form a clear solution, slowly add betaine to the clear solution, and then slowly stir until the betaine is completely dissolved;

[0035] 4) The temperature of the emulsification tank is naturally cooled, and the mixed solution obtained in the tank is the low temperature re...

Embodiment 2

[0038] A low-temperature-resistant diesel vehicle exhaust treatment fluid comprises the following components in parts by weight: 55 parts of ultrapure water, 40 parts of urea, 10 parts of diethanolamine, and 20 parts of betaine.

[0039] The above components are prepared into low temperature resistant diesel vehicle exhaust treatment fluid according to the following method:

[0040] 1) After adding ultrapure water into the emulsification tube, heat the emulsification tank to 20°C;

[0041] 2) Under continuous stirring, add urea and diethanolamine to the emulsification tank in turn, heat to 30°C and keep;

[0042] 3) After the urea and diethanolamine in the emulsification tank are completely dissolved to form a clear solution, slowly add betaine to the clear solution, and then slowly stir until the betaine is completely dissolved;

[0043] 4) The temperature of the emulsification tank is naturally cooled, and the mixed solution obtained in the tank is the low temperature resis...

Embodiment 3

[0046] A low-temperature-resistant diesel vehicle exhaust treatment fluid comprises the following components in parts by weight: 40 parts of ultrapure water, 30 parts of urea, 7 parts of diethanolamine, and 15 parts of betaine.

[0047] The above components are prepared into low temperature resistant diesel vehicle exhaust treatment fluid according to the following method:

[0048] 1) After adding ultrapure water into the emulsification tube, heat the emulsification tank to 20°C;

[0049] 2) Under continuous stirring, add urea and diethanolamine to the emulsification tank in turn, heat to 30°C and keep;

[0050] 3) After the urea and diethanolamine in the emulsification tank are completely dissolved to form a clear solution, slowly add betaine to the clear solution, and then slowly stir until the betaine is completely dissolved;

[0051] 4) The temperature of the emulsification tank is naturally cooled, and the mixed solution obtained in the tank is the low temperature resist...

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Abstract

The invention relates to a low temperature resistance diesel vehicle tail gas treatment solution. The solution is prepared from, by weight, 35-55 parts of ultra pure water, 25-40 parts of urea, 5-10 parts of diethanol amine and 15-20 parts of betaine. The betaine is used for replacing micromolecular alcohol substances in the prior art, and therefore it is effectively kept that a vehicle urea solution system has the excellent effect of resisting low temperature of subzero 35 DEG C, and the safety problem caused when a large number of micromolecular alcohol substances are introduced in the producing and using process is solved; the consumption of diethanol amine is remarkably lowered, meanwhile, the selected betaine is wide in source, low in cost, stable in character and easy to dissolve andmachine, the complex degree and the manufacturing cost for diesel vehicle tail gas treatment solution preparation are greatly lowered, and economic benefits are greatly improved; meanwhile, accordingto the working condition experiments, the treatment capability for nitric oxide in diesel vehicle tail gas meets the national standard requirement.

Description

technical field [0001] The invention relates to the technical field of diesel vehicle exhaust treatment, in particular to a low-temperature resistant diesel vehicle exhaust treatment fluid. Background technique [0002] Especially in the current stage where smog is frequent, as the main source of motor vehicle exhaust pollution, the treatment of diesel vehicle exhaust is also receiving more and more attention. In my country, the treatment of diesel vehicle exhaust generally adopts the Selective Catalyst Reduction (SCR) technical route. After the exhaust gas is sprayed into the vehicle urea solution during the exhaust process, the nitrogen oxides in the exhaust gas are activated by the catalyst. Under the environment, it is converted into nitrogen and water, and finally realizes the purpose of purifying the exhaust gas of diesel vehicles. [0003] At present, the urea solution for vehicles generally consists of 32.5% high-purity urea and 67.5% ultra-pure water. The urea solu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/94B01D53/56
CPCB01D53/9409B01D2251/206B01D2251/2067
Inventor 郑鹏翔郑雪松
Owner 甘肃鑫梓苑环保科技有限公司
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