Catalyst activity detection method for boiler denitrification system
A technology of activity detection and catalyst, which is applied in the direction of using catalysis for chemical analysis, etc., can solve the problem of large error in catalyst activity detection, and achieve the effect of improving evaluation reliability and calculation accuracy
Inactive Publication Date: 2016-05-11
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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[0005] In the embodiment of the present invention, a catalyst activity detection method for boiler denitrification system is provided to solve the problem of large errors in catalyst activity detection caused by sampling representativeness and over ideal reaction conditions in the laboratory activity detection in the prior art
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[0035] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0036] See figure 1 , Is a schematic flow chart of a method for detecting catalyst activity of a boiler denitration system according to an embodiment of the present invention, which specifically includes the following steps:
[0037] Step S101: Take a sample of the catalyst of the on-site unit, and perform activity dete...
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The embodiment of the invention discloses a catalyst activity detection method for a boiler denitrification system. The catalyst activity detection method comprises the steps of firstly sampling the catalyst of an onsite unit, carrying out activity detection in a catalyst activity evaluation device so as to obtain an apparent activity Ki,test of the catalyst sample, constructing a linear proportion relation between real activity Ki of each layer of the catalyst and the apparent activity, and correcting the apparent activity Ki,test by virtue of comparison between calculated concentration CNOx,cal of NOx at the outlet of an onsite reactor and actual concentration CNOx,out, so as to finally obtain the real activity Ki of the catalyst. According to the detection method provided by the embodiment, the activity of the onsite catalyst is really reflected, and new theoretical basis and technological mean are provided for increasing the calculation accuracies of the performance of the catalyst and the reactor and improving the evaluation stability of an updating scheme of the catalyst.
Description
Technical field [0001] The invention relates to the technical field of selective catalytic reduction of power plants for denitration of flue gas tails, in particular to a method for detecting catalyst activity of a boiler denitration system. Background technique [0002] SCR (Selective Catalytic Reduction, selective catalytic reduction method) is currently a widely used denitration technology in power plants. In the SCR denitrification device, the denitration catalyst is the most critical and important component in the SCR flue gas denitration system, and the catalyst generally accounts for 30% to 50% of the total cost of the denitration device. Its activity and service life directly affect the operating cost of the entire denitration system and the performance of the denitration system. Therefore, the service life of the SCR catalyst is valued by power plant managers. Effectively monitor the performance of the catalyst, adjust the operation early, optimize the SCR denitration s...
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IPC IPC(8): G01N31/10
CPCG01N31/10
Inventor 沈鑫闫永梅赵丹妮李月梅曹敏周年荣张林山黄星李鹏毛天常亚东
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST