Method and device for evaluating desulfurization and denitrification performance of active coke

Abstract

The invention relates to a method and a device for evaluating the desulfurization and denitrification performance of active coke, and the method comprises the following steps: 1) placing a quartz reactor filled with an active coke sample in a reaction cavity in microwave equipment, the reaction cavity being composed of a heating cavity, a microwave cavity and a mixed heating cavity which are nested from outside to inside; the quartz reactor is provided with a gas inlet and a gas outlet, the gas inlet is connected with gas mixing equipment through a pipeline, and the gas outlet is connected with gas analysis equipment; 2) starting the microwave equipment, uniformly mixing N2 and SO2 / NO through gas mixing equipment, introducing the mixture into the quartz reactor through a gas inlet, measuring the outlet gas concentration of a gas outlet by using gas analysis equipment, and analyzing the desulfurization and denitrification performance of the active coke sample; and (3) detecting the specific surface area, the micropore volume, the pore size distribution and the like of the active coke sample. According to the invention, the desulfurization and denitrification performance of different active coke samples can be accurately reflected, reasonable performance indexes of the active coke for desulfurization and denitrification can be provided, and the performance indexes of different active coke samples can be detected and analyzed.

Description

technical field [0001] The invention relates to the field of desulfurization and denitrification energy saving and emission reduction, in particular to a method and device for evaluating the desulfurization and denitrification performance of active coke. Background technique [0002] The iron and steel industry is a high-energy, high-pollution, resource-based industry, and the prevention and control of waste gas pollution is the top priority of the pollution prevention and control work of the iron and steel industry, among which SO 2 It accounts for 81.29% of the total emissions, NOx accounts for 53.52% of the total emissions, and smoke dust accounts for 39.81% of the total emissions. Therefore, the treatment of sintering flue gas is an important factor affecting the long-term healthy development of enterprises. From January 1, 2015, all metallurgical enterprises SO 2 and NOx emission concentration limits are 200mg / m 3 and 300mg / m 3 , SO in areas with weakened environment...

AI Technical Summary

Problems solved by technology

The patented process is complex and immature, and the degree of commercial application is not high, so it can only be used for simulation experiments in the laboratory

[0009] In the above evaluation methods, the influence of temperature, gas content, sealing, etc. cannot be accurately controlled, thus affecting the evaluation of the desulfurization and denitrification performance of active coke. The evaluation of denitrification performance and the detection of the best parameters of the tested active coke samples, and the test efficiency is low, the accuracy is poor, the repeatability is difficult, and some detection errors are large, it is difficult to provide accurate performance indicators for the activated coke flue gas purification technology

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