A spraying agent for reducing the PM2.5 content of haze in automobile exhaust

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 spraying agent for reducing the PM2.5 content of haze produced in automobile exhaust. Background technique [0002] In recent years, many places in China have accelerated the deterioration of air quality due to various factors, resulting in frequent haze weather, which has severely affected the normal social order and public health. Different from fog, haze is a catastrophic weather phenomenon in which a large number of extremely fine dry dust particles float evenly 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, the first two are gaseous pollutants, and the last one is PM2.5 Because of its small particles, it can float for a long time in the air, and can act as a carrier of heavy metals, polycyclic a...

AI Technical Summary

Problems solved by technology

Moreover, the air fluidity is poor in hazy 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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