Suzhou olefin: the management method of sulfur-containing odorous waste gas!
Exhaust gas management Sulfur-containing waste gas can be treated in two ways, one is to desulfurize the fuel before incineration, and the other is to desulfurize the flue gas after incineration. The concentration of sulfur dioxide in the flue gas is extremely low, usually around 0.2, so the gas treatment amount is very large in the desulfurization process. For a 100 million kilowatt thermal power plant, for example, 5,097 meters of smoke per minute will occur. Morality.
However, from foreign reports, desulfurization after incineration is still much more economical than desulfurization before incineration. For example, the catalytic hydrodesulfurization before residue incineration has a cost per ton of 2.1, US dollars, and the flue gas after incineration The cost of desulfurization is only 0.66, 1.65 US dollars per ton. According to incomplete statistics, there are currently 23 chemical treatment methods for desulfurization from flue gas, but most of them are still in the research stage, and only a few methods have been tested in thermal power plants and sulfuric acid plants.
Most of the odorous substances in organic waste gas treatment come from industrial enterprises such as chemical plants, sewage treatment plants, garbage treatment plants, feed mills, livestock products farms, and tanneries.
In particular, hydrocarbons containing trace amounts of various structural forms of sulfur, oxygen, nitrogen, etc., odors that occur during storage, transportation, heating, composition, etc., escape into the atmosphere, forming environmental odor pollution. . The Law of the People's Republic of China on the Prevention and Control of Atmospheric Pollution promulgated in 1995, which clearly stipulates the discharge of odorous gases into the atmosphere, it is necessary to adopt management measures to avoid pollution in surrounding residential areas.
The odorous gas of the exhaust gas treatment equipment has certain damage to the human body, and all unpleasant odors are attributed to the malodorous gas. The odor is a kind of public hazard that affects a wide range of people, which seriously affects the human psychology and causes poisoning in severe cases.
Its toxicity to the human body is multi-faceted: it first causes the human body to inhale in a reflexive manner, hindering normal respiratory function; the nervous system is affected by low concentration of malodor for a long time, which causes the olfactory to be lost, and then the cerebral cortex is invigorated and the regulation function of the button is pressed. Disorder.