A kind of chromium-containing flue gas denitrification catalyst and preparation method thereof

A denitrification catalyst and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, heterogeneous catalyst chemical elements, etc., can solve catalyst poisoning failure, affect catalyst denitration rate, catalyst high denitration rate maintenance time is short, etc. question
CN112569925BActive Publication Date: 2022-06-07利晟(杭州)科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
利晟(杭州)科技有限公司
Publication Date
2022-06-07
Patent Text Reader

Abstract

The invention discloses a chromium-containing flue gas denitration catalyst and a preparation method thereof. The chromium-containing flue gas denitration catalyst is composed of catalyst powder, a cocatalyst and a catalyst carrier; the flue gas denitration catalyst is prepared through the following steps: the first step, preparing the catalyst Carrier; the second step is to mix the catalyst powder, the cocatalyst and the catalyst carrier according to the mass ratio of 6-8:0.3:100, and then add them to the mixer for mixing and extruding to obtain the catalyst sludge; the third step is to mix the first The catalyst sludge obtained in the second step is put into a molding machine and extruded into a honeycomb body through a die. After extrusion, it is dried at 60-80°C for 10 hours, 100-120°C for 2 hours, 200-250°C for 2 hours, and 600°C. Calcined at ‑700°C for 1 hour to prepare a chromium-containing flue gas denitrification catalyst.
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Description

Technical field

[0001] The present invention belongs to the field of catalyst preparation technology, specifically relates to a chromium-containing flue gas denitrification catalyst and preparation method thereof. Background

[0002] The pollution sources of nitrogen oxides that pose harm to the environment are mainly caused by human activities, which are mainly from the emissions of industrial and transportation fuel combustion, and some of them are from nitric acid plants, sulfuric acid plants, nitrogen fertilizer plants, dye factories, explosives plants and other industrial sectors that produce and apply nitric acid, which is one of the main sources of air pollution. The new thermal power generation boiler and gas turbine unit are implemented at 100mg / m 3 NOx emission limits.

[0003] Invention patent CN1457920A A honeycomb ceramic catalyst for flue gas simultaneous desulfurization and denitrification is based on the surface treatment of iolite honeycomb ceramic as the carrier...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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