Sprinkling agent for reducing content of PM2.5 of haze producing matters in car exhaust gas

Abstract

The invention discloses a sprinkling agent for reducing the content of PM2.5 of haze producing matters in car exhaust gas. The sprinkling agent includes the components by the mass percentage: 0.5%-5% of an ionic liquid, 10% of a polar nonprotic solvent, 5% of ethanol, and the balance water, wherein the sum of the percentages of the components is 100%. The sprinkling agent has a certain viscosity with the help of the ionic liquid, a part of fine particles are physically settled, in addition, 1-alkyl-3-methyl imidazole chloride or 1-alkyl-3-methyl pyridine chloride easily undergoes adsorption reaction with the PM2.5 in the car exhaust gas, nitrogen oxides and sulfur oxides in the PM2.5 in the car exhaust gas are chemically decomposed, and a good treatment effect is played on the PM2.5. The sprinkling agent has simple operation, has no toxicity and harm to human bodies and environments, can increase the air humidity, and is a sprinkling agent for reducing the content of the PM2.5 of the haze producing matters in the car exhaust gas, wherein the sprinkling agent integrates characteristics of effectivity, convenient use and low price.

Description

technical field [0001] The invention relates to the field of atmospheric protection, in particular to a spray agent for reducing the content of PM2.5, a haze product in automobile exhaust. Background technique [0002] In recent years, various factors have contributed to the accelerated deterioration of air quality in many places in China, resulting in frequent occurrence of smoggy weather, which has seriously affected the normal order of society and public health. Different from fog, haze is a catastrophic weather phenomenon in which a large number of extremely fine dry dust particles are evenly floating in the air, resulting in a decrease in air transparency. Through investigation and research on areas frequently polluted by smog, the results show that sulfur dioxide, nitrogen oxides, and PM2.5 are the main components of smog. Because of its small particles, it can float in the air for a long time, and can be used as a carrier of toxic substances such as heavy metals and ...

AI Technical Summary

Problems solved by technology

Moreover, the air fluidity is poor in smoggy weather, making it more difficult for household facilities such as humidifiers and nebulizers to function. The filter membranes of borrowed tools need to be replaced from time to time, which is troublesome.

In addition, it is difficult to exert a good treatment effect under the temperature environment when the automobile exhaust is emitted.

However, the air negative ion method is too cumbersome to operate. The negative ions in the air are easily combined with dust to form pollution particles with a certain polarity. The treatment of suspended fine particles is not thorough. In the process of reducing fine particles, the air is extremely dry , have a great impact on human health

Because the composition of PM2.5 in automobile exhaust is complex, there is currently no chemical treatment method specifically for PM2.5 in automobile exhaust on the market, and physical treatment methods can only remove part of the relatively large particles in PM2. Small are difficult to handle and it is the very small particles that are the source of major environmental and human health hazards

Moreover, physical methods use humidifiers, atomizers, etc., which are time-consuming, expensive, and difficult to popularize.

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