Flue gas treatment system and flue gas treatment method
一种处理系统、处理方法的技术，应用在气体处理、化学仪器和方法、分离方法等方向，能够解决影响工厂稳定运行、长期运行、浓度增加等问题
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 approach
[0046] will be referenced below figure 1 A first embodiment of a flue gas treatment system according to the present invention is described. refer to figure 1 ,Will figure 1 The flue gas treatment system shown in is arranged in a coal-fired power plant, and the system includes at least a boiler 2; a first adding device 3a; a second adding device 3b; a denitration device 4; an air preheater 5; 6; heat recovery and reheating equipment 7a and 7b; desulfurization equipment 8; and chimney 9. Note that here and in the claims, the configuration consisting of at least the first adding device 3a, the second adding device 3b, and the denitrification device 4 is referred to as denitrification and SO 3 Restore the device.
[0047] The boiler 2 burns externally supplied boiler fuel in a combustion chamber and supplies combustion flue gas generated by the combustion to the denitration device 4 . Flue gases produced by combustion include at least SO 2 The oxidation produces SO 3 .
[...
no. 2 approach
[0101] will be referenced below figure 2 A second embodiment of a flue gas treatment system is described. provided and shown in figure 1 The same elements as those of the first embodiment have the same reference numerals and symbols in , and detailed descriptions thereof will not be repeated below. refer to figure 2 The flue gas treatment system 10 differs from that of the first embodiment at least in that it is arranged in a power plant burning low-grade fuels and that it comprises a third addition device 3c. Low-grade fuels include heavy oil, petroleum tars (petrokokes), vacuum residue (VR) and low-grade coal.
[0102] For the third adding device 3c, an injection pipe installed in an existing factory, which is arranged on the downstream side of the air preheater 5 and on the upstream side of the dust collector 6, can be used. The third adding device 3c further injects the third additive ammonia (NH 3 ) to the combustion flue gas to which the first additive and the sec...
Embodiment 1
[0117] Evaluation for the reduction of SO in flue gas produced under the same conditions as in coal-fired power plants 3 SO 3 Effect of reducing agent (second additive).
[0118] (Preparation of Catalyst A)
[0119] Catalyst A was produced by applying the basic and per se known methods for the production of denitration catalysts.
[0120] (SO 3 Reduction performance and denitrification performance test I)
[0121] Through a laboratory-scale test in which a real machine was assumed to be used, two catalysts in which three catalysts A were continuously combined were produced, and the catalyst blocks were used as Test Example 1 and Test Example 2. Allow flue gas with predetermined properties to flow through the test case, and test SO at the outlet of the first layer, the outlet of the second layer and the outlet of the third layer of the catalyst layer 3 Concentration and NO x concentration. In Test Example 1, no SO was added at the inlet of the catalyst layer 3 reducing ...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More