-
Anonymous users2024-02-07The main pollutants emitted by automobile exhaust are carbon monoxide, hydrocarbons, nitrogen oxides, lead, etc.
According to statistics, every 1,000 cars emit about 3000kg of carbon monoxide, 200-400kg of hydrocarbons, and 50-150kg of nitrogen oxides per 1,000 cars per day; Car exhaust can be described as the "culprit" of air pollution.
The methods for dealing with automobile exhaust exceeding the standard are: 1. Three-way catalytic converter and oxygen sensor; If the exhaust gas of the car is not enough, the first thing that comes to mind should be the three-way catalyst and the front oxygen sensor, and if the engine mixture is not fully combusted, a large amount of carbon will be generated.
2. Clean or replace the spark plug; Spark plugs, high-pressure packs and other ignition system failures will also cause car emissions to exceed the standard, spark plugs are wearing parts, the most prone to problems, poor working conditions of spark plugs will cause emission pollution to aggravate.
3. Deep cleaning of the engine; On the premise that there is no fault in the air flow meter, temperature sensor and other sensors, it is necessary to do a major maintenance of the engine to clean the carbon deposit.
-
Anonymous users2024-02-06The pollutants are carbon monoxide, hydrocarbons, nitrogen oxides, sulfur dioxide, lead-containing compounds, benzopyrene and solid particulate matter, which can cause photochemical smog. In addition, carbon dioxide (CO2), sulfide SOx (SO and SO2), nitrogen oxides NOX (NO and NO2), and hydrochlorofluorocarbons (HCFCs) are emitted by automobiles.
-
Anonymous users2024-02-05Automobile exhaust pollutants generally include: carbon monoxide, hydrocarbons, nitrogen oxides, sulfur dioxide, soot particles (some heavy metal compounds, lead compounds, black smoke and oil mist), odor (formaldehyde, etc.); The main hazard of automobile exhaust is the formation of photochemical smog.
-
Anonymous users2024-02-04Vehicle exhaust pollution is environmental pollution caused by the exhaust gases emitted by automobiles. The main pollutants are hydrocarbons, nitrogen oxides, carbon monoxide, sulfur dioxide, lead-containing compounds, phenylpropylene and solid particulate matter, which can cause photochemical smog.
-
Anonymous users2024-02-03The main pollutants emitted by automobile exhaust are carbon monoxide, hydrocarbons, nitrogen oxides, lead, etc. According to statistics, every 1,000 cars emit about 3,000 kg of carbon monoxide, 200-400 kg of hydrocarbons and 50-150 kg of nitrogen oxides per day. Car exhaust can be said to be the "main culprit" of air pollution.
When a car uses leaded gasoline, a large amount of lead remains in the exhaust fumes. If unleaded gasoline is used, the exhaust gas will produce carbon oxides and nitrogen oxides, which are harmful to human health. The harm of leaded gasoline to vehicle exhaust mainly depends on the composition of the gasoline.
In the past, tetraethyl lead was commonly used as a knock-proof agent for automobile gasoline. This gasoline is made from leaded gasoline.
-
Anonymous users2024-02-02Automobile exhaust pollutants are exhaust gases.
The main pollutants are carbon monoxide, hydrocarbons, nitrogen oxides, sulfur dioxide, lead-containing compounds, benzopyrene and solid particulate matter, which can cause photochemical smog, etc., in addition, carbon dioxide (CO2) emitted by automobiles makes the greenhouse effect, ozone layer depletion and acid rain and other atmospheric environmental problems more serious, and is very harmful to humans and animals and plants.
The method of dealing with excessive automobile exhaust gas
1. Three-way catalytic converter and oxygen sensor
If the exhaust gas of the car is not enough, the first thing that comes to mind should be the three-way catalyst and the front oxygen sensor, if the combustion of the engine mixture is not sufficient, Lu Juan shouted that there will be a large amount of carbon deposits.
2. Clean or replace the spark plug;
Spark plugs, high-pressure packs and other ignition system failures will also cause car emissions to exceed the standard, spark plugs are wearing parts, the most prone to problems, poor working conditions of spark plugs will cause emission pollution to aggravate.
3. Deep cleaning of the engine;
On the premise that there is no fault in the air flow meter, temperature sensor and other sensors, it is necessary to do a major maintenance of the engine to clean the carbon deposit.
1. Switching to automobile fuel (1), using unleaded gasoline to replace leaded gasoline, which can reduce the emission of toxic substances in gasoline exhaust (2), mixing additives, and changing fuel composition. (3) Select appropriate lubrication additives and mechanical friction modifiers. (4) The use of green fuel can also reduce the toxicity of automobile exhaust. >>>More
Not really, the exhaust cleaner ingredient is methanol.
Li Guoxiang, director of the Institute of Internal Combustion Engines at the School of Energy and Power Engineering at Shandong University, said that automotive fuel systems and engines are not well tolerant to methanol, and that large amounts of methanol can lead to corrosion, swelling, softening and cracking of synthetic rubber materials, as well as carburetor metal speckles. "Ordinary cars can't run on fuels with high methanol content if they aren't retrofitted. ” >>>More
1. Improve the environmental protection "label" of fuel;
2. To improve the standard of exhaust emissions, the "Euro 5" standard will be implemented; >>>More
There are two reasons for this:
1. Inferior fuel oil filled with water, sulfur and phosphorus compounds and other harmful substances that are not conducive to full combustion of the engine; After the engine is started, the air-fuel ratio is less than the normal value, which is easy to deflagrate and the temperature is abnormal, and the engine emits very pungent sulfur compounds and hydrocarbons. >>>More
In response to the call for environmental protection, the relevant departments have also issued corresponding regulations on automobile exhaust emissions, which is the so-called national IV and national V. So what should I do if the car exhaust is unqualified? >>>More