High-dust arrangement (HD): The SCR unit is positioned immediately after the boiler. This configuration is used mostly in coal-fired applications, because the gas flue temperature at this location (300 - 400°C) is optimal for the catalyst activity. Dust removal is typically accomplished in cold electrostatic precipitators downstream of the SCR
Read MoreThe available heat for the boiler at 500°F and theoretical combustion equals 9, 150,000 BTU per hour. If 20 percent excess combustion air was used, the available heat at 500°F would be decreased to about 79 percent of the gross heating value for natural gas (calculated from Figure 4).
Read MoreHigh-dust arrangement (HD): The SCR unit is positioned immediately after the boiler. This configuration is used mostly in coal-fired applications, because the gas flue temperature at this location (300 - 400°C) is optimal for the catalyst activity. Dust removal is typically accomplished in cold electrostatic precipitators downstream of the SCR
Read MoreThe available heat for the boiler at 500°F and theoretical combustion equals 9, 150,000 BTU per hour. If 20 percent excess combustion air was used, the available heat at 500°F would be decreased to about 79 percent of the gross heating value for natural gas (calculated from Figure 4).
Read MoreHigh-dust arrangement (HD): The SCR unit is positioned immediately after the boiler. This configuration is used mostly in coal-fired applications, because the gas flue temperature at this location (300 - 400°C) is optimal for the catalyst activity. Dust removal is typically accomplished in cold electrostatic precipitators downstream of the SCR
Read MoreThe available heat for the boiler at 500°F and theoretical combustion equals 9, 150,000 BTU per hour. If 20 percent excess combustion air was used, the available heat at 500°F would be decreased to about 79 percent of the gross heating value for natural gas (calculated from Figure 4).
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