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  • WRTSIL EXHAUST GAS CLEANING SYSTEM

    Stian AakreGeneral Manager R&D

    1 Wrtsil

  • BPO Environmental Seminar 5th Mach 2014

    Wrtsil scrubber system technology options

    Types and amounts of waste

    2 Wrtsil This document is the property of Wrtsil Corporation and shall not be copied or reproduced without the consent of the owner.

  • Wrtsil scrubber system technology options

    Wet scrubbers

    Open loop Closed loop Sea water Fresh water

    3 Wrtsil This document is the property of Wrtsil Corporation and shall not be copied or reproduced without the consent of the owner.

  • Wrtsil scrubber system technology options

    Engine Exhaust Chemistry:S + O2 SO2 (~95%)

    SO2 + 1/2 O2 SO3 (~5%)

    Scrubber Chemistry:SO2 + H2O H2SO3 (Sulphurous Acid)SO3 + H2O H2SO4 (Sulphuric Acid)

    Seawater Reactions:CaCO3 + H2SO3 CaSO3 + H2O + CO2

    2CaSO3 + O2 2CaSO4

    4 Wrtsil This document is the property of Wrtsil Corporation and shall not be copied or reproduced without the consent of the owner.

  • Doc.ID: Revision: Status:19/ Wrtsil

    Wrtsil scrubber system technology options

    Global merchant fleet annual HFO consumption: 300,000,000 tons Average HFO sulphur content: 2.7% Average world ocean sulphate concentration: 2700 ppm Entire world merchant fleet scrub continuously for 150 years

    Resulting world ocean sulphate concentration ???

    2701 ppm

    5

  • 6 Wrtsil This document is the property of Wrtsil Corporation and shall not be copied or reproduced without the consent of the owner.

  • 7 Wrtsil This document is the property of Wrtsil Corporation and shall not be copied or reproduced without the consent of the owner.

  • 8 Wrtsil This document is the property of Wrtsil Corporation and shall not be copied or reproduced without the consent of the owner.

  • Scrubber technology Type III (pat.)

    9 Wrtsil This document is the property of Wrtsil Corporation and shall not be copied or reproduced without the consent of the owner.

  • Scrubber technology

    December 2012 Wrtsil Hamworthy Scrubber / Stian Aakre10

    Owner: Wilh. Wilhelmsen ASA

    Vessel: MV Tarago

    EGC System: Retrofit during dry-dock Operate Europe, America and Asia 1 x 25 MW 3 inlet scrubber for ME and AE 1 x 6MW 1 inlet scrubber for AE in port Hybrid system

    Ship in dock: Q2 2013

    Performance : Cleaning 3,5%S fuel down to 0,1,%S

    10 Wrtsil This document is the property of Wrtsil Corporation and shall not be copied or reproduced without the consent of the owner.

  • Scrubbing system - Hybrid

    December 201213 Wrtsil Hamworthy Scrubber / Stian Aakre

  • Types and amounts of waste

    14 Wrtsil This document is the property of Wrtsil Corporation and shall not be copied or reproduced without the consent of the owner.

    Reductions in: SOx, NOx, PM

    Wash water (sulphates)pH, PAH, turbidity and temperature

    Sludge

  • Sludge producing units / water treatment plants

    Chemical/DAF-treatment systems

    Centrifugal separators

    Filtration ceramic/membranes

    Bioreactors

    Hydro cyclones/multi cyclones (open loop)

    1

  • Sludge properties

    Pumpable (water content 75-90%)

    Non flammable (caloric value

  • Doc.ID: Revision: Status:19/ Wrtsil

  • Doc.ID: Revision: Status:19/ Wrtsil

  • Thank You!