Denitration system and denitration method of SCR high efficient denitration of gas turbine set
A technology of gas turbines and gas turbines, applied in separation methods, chemical instruments and methods, gas treatment, etc., which can solve the difficulties of ensuring the uniformity and thoroughness of mixing flue gas and ammonia gas, the difficulty of connecting heat sources and the preparation and storage of ammonia gas, It is difficult to meet the requirements of compact layout of gas turbines, etc., to achieve the effects of eliminating rotation, high mixing uniformity, and reducing impact
Active Publication Date: 2019-11-29
SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP
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Problems solved by technology
The process and equipment are complicated, the floor area is large, the heat source connection and ammonia preparation and storage are difficult, and the system piping is complex, which makes it difficult to meet the compact layout requirements of the gas turbine
The pyrolysis response of urea is too long, and the long-term operation of the pyrolysis reactor is prone to problems, which affects the denitrification efficiency of the gas turbine
In addition, it is difficult to ensure the uniformity and thoroughness of the mixing of flue gas and ammonia gas through the ammonia injection grid, and the flow field in the flue is complicated, and the contact between the catalyst and the flue gas is insufficient, which reduces the denitrification efficiency
Method used
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[0054] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
[0055] It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0056] Such as figure 1 As shown, a gas turbine unit SCR denitrification system with high efficiency denitrification includes:
[0057...
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Abstract
The invention discloses a denitration system of SCR high efficient denitration of a gas turbine set. The denitration system comprises a flue gas channel, wherein the upstream end of the flue gas channel is connected to a gas turbine set and the downstream end of the flue gas channel is connected to a chimney; a preheating channel, which is arranged on the upstream of the flue gas channel in a coilshape, wherein one end of the preheating channel is connected to a urea solution source, the other end is provided with a spray gun, and the spraying direction of the spray gun and the axis directionof the flue gas channel are identical; a whirling elimination device, which is arranged in the flue gas channel, is arranged on the downstream of the preheating channel, and is used to convert the spiral motion of flue gas into linear motion along the flue gas channel; and a catalyst layer, which is arranged in the flue gas channel, is arranged on the downstream of a heat exchange bundle, and hasa honeycomb structure or corrugated plate structure. The denitration system has the advantages of high denitration efficiency, stable performance, compact structure, simple equipment, energy saving property, and environmental friendliness.
Description
technical field [0001] The invention belongs to the technical field of waste gas pollution control, and in particular relates to a denitration system and a denitration method for efficient SCR denitration of a gas turbine unit. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] With the rapid development of the world, especially Chinese society, safety, environmental protection and new energy have become the themes, and the discharge and treatment of gas, liquid and solid pollutants have reached unprecedented heights. The emission control of nitrogen oxides has also become the top priority of gas pollution control. At present, domestic Beijing, Tianjin, and Shenzhen have is...
Claims
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IPC IPC(8): B01D53/86B01D53/56
CPCB01D53/8625B01D2258/01B01D2251/2062
Inventor 张军梅刘强栾涛王志强岳建雄
Owner SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP
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