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ENVIKRAFT A/S supplies flue gas treatment systems incorporating either wet scrubbers or dry bag systems utilised for a wide range of different waste types taking into consideration parameters such as
- flue gas temperature
- flue gas composition
- flue gas analyses and monitoring/recording
Flue gas temperature
The flue gas is cooled to the appropriate temperature by means of different types of systems, such as
- hot water boiler
- steam boiler - saturated steam
- superheated steam boiler
- air dilution
- Quench cooler
Flue gas composition
Our systems are available for compliance with emission requirements such as Council Directive 2000/76/EEC and the German 17. BimSchV or any other emission regulation.
The substances to be removed are typically
- Particles
- Gaseous and vaporous organic substances expressed as Total Organic Carbon TOC
- Hydrochloric Acid HCl
- Hydrogen Fluoride HF
- Sulphur Dioxide SO2
- Dioxins and furans
- Heavy metals and their compounds
The cleaning process
The cleaning process incorporates various technologies such as
Bag Filter Systems
With a temperature ranging from 110 °C to 250 °C depending on the selection of filter bag material.
Ceramic Filter Systems
Dry Absorption Systems
With reactor, injection of lime/ sodium bicarbonate and activated carbon and with a typical operating temperature ranging from 120 °C to 250 °C.
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Wet scrubber Systems
Typically with heat exchangers for cooling and re-heating of the flue gas.
HEPA-filter Systems
With extreme particle retention efficiencies, most commonly used for LLRW applications.
Flue Gas Analyses and Monitoring/Recording
Continuous flue gas analysis and monitoring/recording systems are available for the following parameters with conversions into standard reference conditions:
- Oxygen O2 - dry and wet
- Carbon Monoxide CO
- Carbon Dioxide CO2
- Total Dust (particles)
- Gaseous and vaporous organic substances expressed as Total Organic Carbon TOC
- Hydrochloric Acid HCl
- Sulphur Dioxide SO2
- Nitrogen Monoxide NO and Nitrogen Dioxide NO2 with conversion into NO2 for representation of NOx.
complete with:
- sampling systems
- analyzers
- calibration systems
- monitoring with data conversions, trend graphs and other forms of visualization on screen and/or paper (present values, average, maximum or minimum values)
- data storage
- data reports (hourly, daily, weekly, monthly, yearly or by batch)
- Monitoring, storage and presentation of the data are normally an integrated part of the Supervisory, Control and Data Acquisition (SCADA) System for the plant.
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