Waste gas produced by the petroleum industry

Test - lowercase jpg

Kaixin micro test

Test probe P100-M3

The oil industry, especially in the petroleum refining process, will produce a certain amount of

Toxic and harmful gases

. There are three sources of these exhaust gases: one is

Fuel burning

Such as tail gas of vehicles and internal combustion engine equipment, flue gas of heating furnaces and boilers, oil fields of oil and oil refineries

Burning smoke

;two is

Petroleum gas

During the development, gathering, storage, transportation, and processing, gases that are volatilized, vented, or blown out at the wellhead, oil pipelines,

Tank leak gas

, non-condensable gases produced by refinery and petrochemical plant production facilities, by-product gases that emit gases and reactions, and odors and harmful gases emitted during the treatment and transportation of wastewater and other wastes;

Oil and gas company

Gas waste (volatiles of paints and coatings, etc.) from affiliated machinery plants and other processing plants (pipe stations, etc.).

In 2001, China's 945 petroleum processing and coking enterprises emitted a total of 40.5 billion cubic meters of industrial waste gas, accounting for 2.6% of the total industrial waste gas emissions; 180 oil and gas mining enterprises emitted a total of 106.4 billion cubic meters of waste gas. , accounting for 0.7% of the total industrial waste gas emissions. However, compared with the proportion of the output value of the oil and gas industry in the total industrial output value of the country, for example, the output value of the oil and gas exploration industry alone accounts for 2.6% of the total industrial output value of the country.

The processing capacity of petroleum refining equipment is usually in the order of one million tons, so the exhaust gas emission is large, the pollutant composition is complex, the toxicity is strong, the variety is large, the emission is concentrated, and the damage is very serious. The discharged pollutants can also be detected at a distance of 2 km from the production unit. For example, the regenerated flue gas discharged from the refinery catalytic cracking unit contains dust,

Carbon monoxide

,

Nitrogen oxides

with

Sulfur dioxide

Since the discharge height is generally around 100 meters, the diffusion range of pollutants is large. According to the test of the wind direction of the catalytic refinery of the Shengli Refinery 500 meters,

Sulfur dioxide concentration

0.15 mg/m3,

Nitrogen oxides

Is 0.079 mg/m3,

Carbon monoxide

It is 0.211 mg/m3. Refining agent additive production equipment

Hydrogen chloride gas

, when discharging, in the air 200 meters away from the device

Hydrogen chloride concentration

At 0.92 mg/m3, nearby residents can smell an unpleasant smell.

When the oil burns, it will generate a kind of

Benzopyrene

It is easily absorbed by the dust in the atmosphere, enters the human body through breathing, and stays in the alveolar and bronchial walls for a long time, which can induce cancer. There are also statistics showing that the city

Atmospheric benzene

For every 0.1 microgram/100 cubic meter increase in the concentration of sputum, the mortality rate of lung cancer will increase by 5%. In the industrial area of ​​the city,

benzene

And the pollution level is higher, such as the heavy industry area in Beijing.

Atmospheric benzene

The concentration of bismuth is up to 11.45 μg/100 m3, and the urban area is 4.70 μg/100 m3. In the clean area where there is no industrial pollution, the concentration of benzopyrene is only 0.24 μg/100 m3.

Benzene is a colorless, sweet, transparent liquid at room temperature, which has a density lower than that of water and has a strong aromatic odor. The boiling point of benzene is 80.1 ° C and the melting point is 5.5 ° C. Benzene has a lower density than water and has a density of 0.88 g/ml, but its molecular mass is heavier than water.

Since benzene is highly volatile, it is easily diffused when exposed to air. Human and animal inhalation or skin contact with large amounts of benzene into the body can cause acute and chronic benzene poisoning. Studies have shown that part of the cause of benzene poisoning is due to the formation of phenol in benzene.

pay attention:

(1) Long-term inhalation can invade the human nervous system. Acute poisoning can cause nervousness and even coma and death.

(2) In leukemia patients, a large part of the history of exposure to benzene and its organic products.

Due to benzene to the human body

Great, then we enter into

benzene

When working in a local area, you need to equip the ozone detector to protect your safety. Guangzhou Jiangteng Intelligent Technology Co., Ltd.

American Huarui

of

PGM-7360

Detector,

It exists for the purpose of detecting benzene compounds. Huarui PGM-7360

High precision, simple and easy to operate, is

Benzene

A rare good in the middle.

Since the petroleum refining and chemical industry emissions have a certain impact on air pollution, companies are paying attention to the treatment of exhaust gases. China in 2001

Petroleum gas

The mining and refining industry removes waste gas from combustion processes

Sulfur dioxide

A total of 420,302 tons, removing 1,129,200 tons of industrial dust and removing 114,400 tons of industrial dust. Among them, the desulfurization capacity of the desulfurization facilities of petroleum refining enterprises reached 2453.4 tons/hour, second only to the thermal power generation industry.

Why can't use flammable gas detector for leak detection of benzene?

?

The lower explosion limit of benzene: 1.2% VOL = 100% LEL = 12000 PPM, the minimum value of the combustible gas detector is 1% LEL = 120 PPM, and the under-report is set to 20% LEL = 2400 PPM.