Natural gas distributed energy flue gas denitrification catalyst and its preparation process

Abstract

The invention provides a natural gas distributed energy flue gas denitration catalyst and a preparation method thereof. The catalyst provided by the invention has a high temperature resistant carrier,resistance to sintering, and high activity. In a natural gas flue gas denitration process, the carrier titanium dioxide of the catalyst has crystal changes, and loss and sintering of active components due to high temperature, rendering the problems of catalyst deactivation, low denitration efficiency, higher cost, and short life. According to the invention, the problems can be overcome.

Description

technical field

[0001] The invention relates to a natural gas distributed energy flue gas denitrification catalyst and a preparation process thereof. Background technique

[0002] Natural gas distributed energy refers to the use of natural gas as fuel to achieve energy cascade utilization through combined cooling, heating, and electricity. The comprehensive energy utilization efficiency is above 70%, and modern energy supply methods are realized near the load center. Although clean air is used as energy, under lean combustion conditions, NOx emissions will be generated, which will pollute the atmosphere, and the flue gas temperature is high (458-550°C), which is much higher than the operation of denitrification catalysts in traditional coal-fired power plants Temperature (300-420°C). If vanadium-tungsten-titanium denitration catalysts for coal-fired power plants are operated in flue gas above 420°C for a long time, high-temperature sintering of titanium dioxide will occur, ...

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