Recycling and Utilization Method of Coal Chemical Vent Gas
A technology for coal chemical industry and waste gas, applied in the field of coal chemical industry, can solve problems such as environmental damage and waste of resources, and achieve the effects of saving resources, improving environmental protection and saving economic costs
Active Publication Date: 2017-10-03
翟树军
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Problems solved by technology
This kind of vented waste gas has a great reuse value. The existing treatment method is to burn it through a torch, which will not only cause a serious waste of resources, but also, because the vented waste gas contains elements such as sulfur and nitrate, it is also very easy to damage to the environment
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Embodiment Construction
[0018] Further elaborate the present invention below in conjunction with specific embodiment and accompanying drawing:
[0019] A method for recycling waste gas from coal chemical industry, comprising the following steps:
[0020] Step 1), sending various venting gases into the combustion furnace after passing through the gas mixing buffer;
[0021] Step 2), inject air into the oxygen-enriched air mixer under the action of the air blower, and then inject oxygen into the oxygen-enriched air mixer to form oxygen-enriched air, and then pass the oxygen-enriched air through the first air preheater, the second air After the preheater is preheated, it is sent into the combustion furnace to form a mixed gas with the vented gas in step 1);
[0022] Step 3), the mixed gas is converted into high-temperature flue gas through combustion in the combustion furnace, and the high-temperature flue gas is used as a heat source to pass through the superheater, denitrification device and waste he...
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The invention relates to a method for recycling vented waste gases generated in the coal chemical industry. The method comprises the steps of combusting a mixed gas composed of oxygen and vented waste gases to generate a high-temperature flue gas; heating deoxidized soft water in a boiler by taking the high-temperature flue gas as a heat source to generate superheated steam; and generating power by using the superheated steam or using the superheated steam for a subsequent system. By using the method, the secondary utilization of the vented waste gases generated in the coal chemical industry is realized, the condition that production steam is insufficient is solved, the utilization ratio of resources is remarkably increased, the production costs of enterprises are reduced, and extremely high economic benefits are created for the enterprises. Meanwhile, the vented waste gases are also denitrated and desulfurized in the method, so that damage to the environment caused by sulfur, nitre and other elements in the vented waste gases generated in the coal chemical industry is greatly reduced, and the environment protection property is remarkably improved.
Description
technical field [0001] The invention belongs to the technical field of coal chemical industry, and in particular relates to a method for recycling exhaust gas from coal chemical industry. Background technique [0002] As a natural mineral resource, coal has developed from coal as fuel in the early stage to gasification of coal as raw material to produce chemical products recently. In recent years, coal chemical industry has developed rapidly all over the world. Coal is China's main fossil energy and the main raw material for many important chemical products. With the continuous and rapid development of social economy, China's demand for energy and chemical products has also shown a relatively high growth rate in recent years. Coal chemical industry has made great achievements in China's energy industry. Breakthrough progress, technological innovation and industrialization are at the forefront of the world, and coal has occupied an important position in the field of oil sourc...
Claims
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IPC IPC(8): F23G7/06F23L15/00F22B1/18F23J15/04F23J15/06B01D53/86B01D53/78B01D53/60
CPCB01D53/60B01D53/78B01D53/9409B01D2251/2062B01D2255/00F22B1/18F23G7/06F23J15/04F23J15/06F23L15/00Y02E20/34
Inventor 翟树军焦金涛马文清王磊曹会敏高亭张国民
Owner 翟树军