Adiox for dioxin removal in wet scrubbers and dry absorbers Dr. Sven Andersson and M.Sc. Per Lindgre

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Adiox for dioxin removal inwet scrubbers and
dry absorbers Dr. Sven Andersson and M.Sc. Per
LindgrenGötaverken Miljö AB, Sweden
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Contents

• Short company presentation
• Memory Effect vs. Adiox
• Applications and references
• MercOx and Adiox at Sakab
• Conclusions

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Götaverken Miljö, Göteborg, Sweden

• Flue gas cleaning
• Enhanced energy recovery

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About us

• Located in Göteborg, Sweden
• A branch from the more than 150 year old
  Götaverken company Group
• Owner is the 6th AP Fund (National Pension Fund)
• Turnover approx 12 million euro
• 25 employees

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Dioxins in pure plastic
Plastic vs. Adiox
Dioxins in Adiox
Absorption-desorption equilibrium Memory Effect
Absorption in plastic and adsorption at carbon
particles
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Standard components
Tower packings in wet scrubbers and dry
absorbers Telpac 2 120 m2/m3 Telpac 1 200
m2/m3 RauschertHiflow 50-6 90 m2/m3 Hiflow
50-0 110 m2/m3 Hiflow 38-1 150 m2/m3 Hiflow
25-7 210 m2/m3 Hiflow 15-7 310 m2/m3
Droplet separators Knitted mesh as well as vane
type (Lechler)
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Adiox mile stones

Dry Adiox pilot
Contract for Adiox as main dioxin filter
Pilot scrubber for lt 0.1 ng
TEQ/m3 First full scale installation
License agreement
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ADIOX Reference installations

• 2001 I/S Kraftvarmeværk Thisted, Denmark
• 2002 Kolding TAS, Denmark
• Dåvaverket, Umeå Energi AB, Sweden
• I/S Fasan, Næstved, Denmark
• 2003 Halmstad Renhållnings AB, Sweden
• Trédi Salaise 1, France
• DOW Chemicals, Germany
• Tredi Salaise 2, France
• 2004 SAKAB Kumla, Sweden
• DOW Chemicals, Germany (several installations)
• Karlstad Energi AB, Sweden
• GSB Schwabach, Germany
• AVR Avira Duiven, Netherlands
• Sidefage, Bellegarde, France
• Bodens Energi, Sweden
• Elsam A/S, Måbjergværket, Denmark
• Taiwan Power Company, No.3 Nuclear Power
  Station, Taiwan
• 2005 Wacker Chemie, germany
• DOW Chemicals, Germany (several installations)

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Adiox Applications

• Adiox as police filter / Memory Effect
  prevention
• Adiox in combination with other technologies
• Adiox ESP as main dioxin filter
• Adiox as dry absorber

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Police filter / Memory Effect prevention
Reference municipal waste Umeå Dåvamyran,
Sweden Adiox after bag house
Reference hazardous waste Sydkraft Sakab,
Sweden Adiox in MercOx scrubber
Activated carbon
Bag house filter
Wet scrubber
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In combination with other technologies
Reference hazardous waste Tredi Salaise,
France Adiox after carbon slurry scrubber
Reference MSWI AVR Avira (Netherlands) Adiox
in combination with activated carbon in wet
scrubbers
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ESP Adiox lt 0.1 ng TEQ/Nm3
Reference municipal waste Måbjergvaerket
(DK) Start-up autumn 2004 (now in operation)
Electrostaticprecipitator
HCl-Scrubber
SO2/ADIOX Scrubber
Water treatment
NaOH tank
Sulphate tank
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Results dioxin removal at Måbjergværket
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Adiox dry absorber
Tests performed - Initial laboratory scale -
Client installation (confidential) - Pilot at
RENOVA
Pilot installation
Fluegascleaning
Adiox dry absorber fordioxin removal
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Dry Adiox pilot at Renova
Boiler
ESP
Wet scrubbers
Reheater
Inlet 0.7-2 ng TEQ/Nm3
60-80 C
Adiox dry absorber pilot
Outlet 0.002-0.02 ng TEQ/Nm3
Bag house
Stack
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A compact state-of-the-art APC system
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• Dry Adiox
• Simple absorber construction
• Intermittent rinsing may be required
• More efficient mass transfer Less material
  required for the same removal efficiency

• Wet Adiox
• Easy to install in existing wet scrubbers
• Scrubber circulation keeps material clean
• MultifunctionalPCDD/F-, HCl-,SO2-,Hg-removal,
  flue gas condensation

• Installation
• Operation
• Performance

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ADIOX package units
Dry Adiox absorber
Wet Adiox scrubber
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Multifunctional scrubber at Sakab, Sweden
MercOx- and Adiox scrubber for Hg, Hg(ox),
HCl, SO2 and dioxin removal
Waste water free!
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Conclusions

• Dry High PCDD/F removal efficiency in a one
  stage absorber
• Wet Multifunctional (HCl, HF, SO2 removal
  condensation)
• High porosity low clogging risk
• Clean handling and no Hot-spots
• No final residue (PCDD/Fs destroyed by
  incineration)
• Simple, static system with high availability

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