Full-scale performance detection and evaluation device of SCR (selective catalytic reduction) denitration catalyst and application method thereof

Abstract

The invention discloses a full-scale performance detection and evaluation device for a SCR denitration catalyst and an application method thereof, and belongs to the field of detection. The full-scaleperformance detection and evaluation device comprises an air distribution system, a main reaction system, an analyzing system, a spraying system and a data collecting and control system which is usedfor achieving parameter setting and automated operation of control elements, wherein the main reaction system comprises a heat exchanger, an electric heater and a reactor system which are sequentially connected. The reactor system comprises a plurality of reaction furnaces, and the reaction furnaces are connected mutually. In the situation of without stopping the furnaces, the full-scale performance detection and evaluation device can continuously measure the performance of the catalyst under four working situations, the energy is saved to the largest extent, the working efficiency is improved, and the parameters such as denitration efficiency, ammonia escape, SO2 / SO3 conversion rate and pressure drop can be effectively measured.

Description

technical field [0001] The present invention relates to an experimental device for detecting and evaluating technological performance indicators of a flue gas denitrification catalyst and an application method thereof, more specifically, to a full-scale performance detection and evaluation device for an SCR denitrification catalyst and an application method thereof. Background technique [0002] Catalyst performance directly affects whether flue gas NOx emissions meet the standards, which is related to NH 3 Whether the escape rate exceeds the standard, whether it will produce salt accumulation on the downstream air preheater and other equipment. Catalyst performance indicators have strong guiding significance for catalyst life management and replacement planning, and are also the basis for the optimization and adjustment of denitrification system operation. Therefore, in order to ensure the denitrification efficiency, NH 3 Escape rate, SO 2 / SO 3 It is necessary to regul...

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Problems solved by technology

[0007] Aiming at the problems of energy waste and low efficiency in the application process of the existing SCR denitrification catalyst full-scale performance detection and evaluation device, the present invention provides a SCR denitrification catalyst full-scale performance detection and evaluation device and its application method. The device has four The reaction furnace adopts the form of two series and parallel connection, which can continuously measure the catalyst performance of four working conditions without stopping the furnace, which can save energy and improve work efficiency to the greatest extent, and the front end of each reactor of the device is equipped with There is a rectifier to ensure the uniformity of the flow field, thereby improving the denitrification efficiency, ammonia escape, SO 2 / SO 3 The accuracy of parameters such as conversion rate

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