Analysis of the Industrial Chain of SCR Denitration Catalysts
Publishdate：2018-05-04 Views：38
SCR catalyst (selective catalytic reduction) denitrification technology refers to the reaction between the reducing agent (anhydrous ammonia, ammonia water, or urea) and NOx in the flue gas in the presence of a catalyst to generate harmless nitrogen and water, thereby removing NOx from the flue gas.
Upstream Career Analysis
The raw materials for SCR decommissioning catalysts should include precious metals and metal oxides. If precious metals are used as catalysts such as Pt, Pd, Rh, and Ag, metal oxides include V2O5, Fe2O3, CUO, CrOx, MnOx, MgO, and NiO. The collection of these enterprises constitutes the upstream profession of SCR denitrification catalyst profession.
With the in-depth discussion of SCR catalysts, precious metal catalysts are quickly being replaced by metal oxide catalysts. V2O5/TiO2, V2O5-WO3/TiO2, or V2O5-WO3/TiO2 are commonly discussed and used in many metal oxide catalysts. These catalysts are used in traditional SCR devices at temperatures ranging from 300 ℃ to 400 ℃ and exhibit high catalytic activity.
In addition, China has abundant vanadium resources and is a world leader in vanadium resource reserves. The total global production of vanadium is currently about 77000 t/a, with South Africa, China, and Russia being the three largest vanadium producing countries in the world. Its vanadium production accounts for 45.5%, 29.5%, and 22.7% of the total international production, while others only account for 2.3%. The abundant vanadium resources provide a strong guarantee for the demand of SCR denitrification catalyst profession.
2、 Analysis of downstream professions
From the perspective of usage domain, its use can be divided into two major aspects: one is for automotive exhaust, and the other is for coal-fired power plants.
The SCR process used for treating automotive exhaust typically uses precious metal catalysts, such as platinum. With the rapid development of the automotive industry, the environmental pollution caused by automobile exhaust is becoming increasingly serious. International countries have formulated strict regulations for automobile exhaust emissions, using automobile exhaust purification catalysts to greatly reduce urban air pollution. However, precious metal catalysts are expensive and have certain constraints on their use, so the development of catalysts and non precious metal catalysts for use under lean combustion conditions has become a hot topic of research. This will bring a very broad prospect for the use of SCR denitrification catalysts in automotive exhaust purification, and the future use of SCR denitrification catalysts in automotive exhaust purification will progress and expand.
The catalyst used in the incineration power plant is a non precious metal, and the active ingredient of this catalyst is vanadium pentoxide (V2O5). Titanium dioxide is used as the skeleton material, and the general process is to mix V2O5 and TiO2 and extrude them into shape, dry them, sinter them, and then cut and assemble them. From 1990 to 2011, China's thermal power generation increased from 0.5 trillion kilowatt hours to 2.7 trillion kilowatt hours, accounting for an average of 82% of power generation. With the development of the thermal power industry and the promotion of flue gas denitrification projects, the demand for SCR denitrification catalysts will progress and expand. Chinese production enterprises will also strengthen their research and production efforts in SCR catalysts.
SCR catalyst (selective catalytic reduction) denitrification technology refers to the reaction between the reducing agent (anhydrous ammonia, ammonia water, or urea) and NOx in the flue gas in the presence of a catalyst to generate harmless nitrogen and water, thereby removing NOx from the flue gas.
Upstream Career Analysis
The raw materials for SCR decommissioning catalysts should include precious metals and metal oxides. If precious metals are used as catalysts such as Pt, Pd, Rh, and Ag, metal oxides include V2O5, Fe2O3, CUO, CrOx, MnOx, MgO, and NiO. The collection of these enterprises constitutes the upstream profession of SCR denitrification catalyst profession.
With the in-depth discussion of SCR catalysts, precious metal catalysts are quickly being replaced by metal oxide catalysts. V2O5/TiO2, V2O5-WO3/TiO2, or V2O5-WO3/TiO2 are commonly discussed and used in many metal oxide catalysts. These catalysts are used in traditional SCR devices at temperatures ranging from 300 ℃ to 400 ℃ and exhibit high catalytic activity.
In addition, China has abundant vanadium resources and is a world leader in vanadium resource reserves. The total global production of vanadium is currently about 77000 t/a, with South Africa, China, and Russia being the three largest vanadium producing countries in the world. Its vanadium production accounts for 45.5%, 29.5%, and 22.7% of the total international production, while others only account for 2.3%. The abundant vanadium resources provide a strong guarantee for the demand of SCR denitrification catalyst profession.
2、 Analysis of downstream professions
From the perspective of usage domain, its use can be divided into two major aspects: one is for automotive exhaust, and the other is for coal-fired power plants.
The SCR process used for treating automotive exhaust typically uses precious metal catalysts, such as platinum. With the rapid development of the automotive industry, the environmental pollution caused by automobile exhaust is becoming increasingly serious. International countries have formulated strict regulations for automobile exhaust emissions, using automobile exhaust purification catalysts to greatly reduce urban air pollution. However, precious metal catalysts are expensive and have certain constraints on their use, so the development of catalysts and non precious metal catalysts for use under lean combustion conditions has become a hot topic of research. This will bring a very broad prospect for the use of SCR denitrification catalysts in automotive exhaust purification, and the future use of SCR denitrification catalysts in automotive exhaust purification will progress and expand.
The catalyst used in the incineration power plant is a non precious metal, and the active ingredient of this catalyst is vanadium pentoxide (V2O5). Titanium dioxide is used as the skeleton material, and the general process is to mix V2O5 and TiO2 and extrude them into shape, dry them, sinter them, and then cut and assemble them. From 1990 to 2011, China's thermal power generation increased from 0.5 trillion kilowatt hours to 2.7 trillion kilowatt hours, accounting for an average of 82% of power generation. With the development of the thermal power industry and the promotion of flue gas denitrification projects, the demand for SCR denitrification catalysts will progress and expand. Chinese production enterprises will also strengthen their research and production efforts in SCR catalysts.
