Environmental protection technology for coal-fired tail gas treatment
A tail gas treatment, coal-fired flue gas technology, applied in the direction of gas treatment, membrane technology, dispersed particle separation, etc., can solve the problems of high equipment investment costs and operating costs, without solving the problems of limestone-gypsum method and low dissolving capacity of limestone, etc. Achieve the effects of improving the regional ecological environment, stable and efficient processing performance, and low operating costs
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example 1
[0026] The mass percentage is 81% red mud, copper 2%, nickel 3%, platinum 5%, titanium 4%, palladium 3%, rhodium 2%, and the catalyst is prepared from the bottom 40cm, top 60cm and middle of the coal chimney Install a packing layer with a height of 30cm, load the catalyst on it, and set two pipes at the bottom of the chimney, one pipe is connected to the coal-fired flue gas, and the other pipe is connected to the waste gas discharged from the aeration high-concentration ammonia-nitrogen wastewater. Coal-fired flue gas containing nitrogen dioxide and ammonia-containing gas are fully contacted under the action of the catalyst for rapid reaction to generate non-toxic nitrogen and sulfur. The detected sulfur concentration after treatment is 0.08mg / m3.
example 2
[0028] The mass percentage is 85% red mud, copper 2%, nickel 1%, platinum 4%, titanium 2%, palladium 3%, rhodium 3%, and the catalyst is prepared from the bottom 40cm, top 60cm and middle of the coal chimney Install packing layers with a height of 35cm respectively, and load the catalyst on them. There are two pipes at the bottom of the chimney, one pipe is connected to the coal-burning flue gas, and the other pipe is connected to the waste gas discharged from the aerated high-concentration ammonia-nitrogen wastewater. Coal-fired flue gas containing nitrogen dioxide and ammonia-containing gas are fully contacted under the action of the catalyst for rapid reaction to generate non-toxic nitrogen and sulfur. The detected sulfur concentration after treatment is 0.05mg / m3.
example 3
[0030] The mass percentage is red mud 83%, copper 3%, nickel 1%, platinum 6%, titanium 3%, palladium 3%, rhodium 1%, and the catalyst is prepared from the bottom 40cm, top 60cm and middle of the coal chimney The packing layer with a height of 42cm is installed respectively, and the catalyst is loaded on it. There are two pipes at the bottom of the chimney, one pipe is connected to the coal-fired flue gas, and the other pipe is connected to the waste gas discharged from the aeration high-concentration ammonia nitrogen wastewater. The coal-burning flue gas containing nitrogen dioxide and the ammonia-containing gas are fully contacted under the action of the catalyst for a rapid reaction to generate non-toxic nitrogen and sulfur, and no sulfur is detected after treatment.
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