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JFE’s Waste to Energy Technology...2016/04/02  · DXN 0.00000014ng- 0.00014ng-TEQ/Nm3...

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JFE’s Waste to Energy Technology 10, March 2016
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  • JFE’s Waste to Energy Technology

    10, March 2016

  • About JFE

    JFE’s WTE Technology

  • Group Structure

    3

    5

    43,000

    Net Sales(million $)

    Employees 25,000

    JFE Steel

    1,300

    Net Sales(million $)

    Employees 16,800

    JFE Shoji Trade

    JFE Holdings (est. 2002)

    8,500

    Net Sales(million $)

    Employees 3,200

    6,500

    Net Sales(million $)

    Employees

    2,300

    Japan Marine United

    Est. 1912 Est. 1951

  • Business Field

    4

    Environment

    Energy

    Steel Structure

    Industrial Machinery

    Net Sales (mil USD)

    3,200

    48%

    25%

    9%

    18%

  • JFE’s Environmental Solutions

    5

    Waste to Energy Plant RDF Production Plant RDF Power Plant

    Sewage Sludge Incinerator

    Power Generation using Digestion Gas Biomass Power Plant

    Home appliances PET Plastic bottles Florescent lamps

    Municipal Solid

    Waste

    Sewage Treatment

    Biomass

    Recycling

  • ●Gasifying & Melting

    ●Stoker & others

    EPC

    Operation 68 Plants

    Maintenance 115 Plants

    O&M

    WTE presence in Japan since 1968 171 plants (354 Furnaces)

    JFE’s Track Record in Japan

    6

  • JFE’s Track Record Overseas

    7

    http://www.standardkessel-baumgarte.com/http://www.jfe-eng.co.jp/en/

  • About JFE

    JFE’s WTE Technology

  • Waste in Japan & JFE’s Experience

    9

    Yokohama (900tpd) Fukuoka (600tpd) Tokyo (600tpd) Yokohama (1,200tpd) Osaka (900tpd)

    LH

    V o

    f W

    aste

    (kJ/

    kg

    )

    2000

    4,000

    6000

    8000

    10,000

    12000

    14000

    1965 1970 1975 1980 1985 1990 1995 2000 2005

    LHV : Lower Heating Value

    LHV of MSW in: Design condition

    ● max ■ average ▲ minimum

    Yokohama

    Fukuoka Osaka

    Tokyo

    JFE has kept developing its technology as the waste characteristics changed.

  • Typical Process Flow of WtE Plant

    10

  • Furnace Profile

    11

    Hopper

    Chute

    Waste feeder

    JFE Hyper Grate system

    Boiler

    Furnace

    Intermediate ceiling

    Waste Exhaust gas

    Bottom ash

    High temperature Air nozzle

  • 2-Way Flue Gas Furnace

    12

    Intermediate ceiling

    Secondary Combustion Zone

    For unburned gas : Oxidation reaction

    2CO+O2 → 2CO2 For combustion gas : Reduction reaction

    NOx +NH3 → N2+H2O

    Complete Combustion

    Achieved

    Unburned gas CO, H2, NH3

    Combusted gas O2, NOx, CO2

    Drying Zone

    Combustion and post-combustion Zone

  • Stable Combustion with Low Excess Air

    13

    Stable Combustion Region

    Blowing high-temperature air forms stable combustion region.

    Thermal decomposition is accelerated.

    Stable combustion is achieved even with low excess air ratio.

    Low NOx, CO, DXN

  • JFE Hyper Grate System

    14

    Minimized ash drop between grates

    High-Speed Air Flow

    minimizes dropping of molten

    aluminum.

    Movable Grate Fixed Grate

    Air Injection Port

    High pressure drop at grate

    enables uniform air flow

    throughout the entire grate

    Combustion Air

    Water-cooling Grate

  • Stoker Furnace (Fujimi, TOKYO)

    Completion March 2013

    Capacity 288 ton/day (144TPD× 2 lines)

    Power Gen. 9.7MW

    Flue gas treat. Gas cooling tower, NaOH injection system, dry-type flue gas treatment system, bag filter, deNOx reactor

    Ignition Loss of Bottom Ash

    ≦3%

    Design calorific value of waste

    Min. LHV

    5,850kJ/kg

    1,400kcal/kg

    Ave. LHV

    9,610kJ/kg

    2,300kcal/kg

    Max. LHV

    13,380kJ/kg 3,200kcal/kg

    Waste Pit

    Emission Performance

    Regulatory Standards

    Dust & Fly Ash

  • Thank you for your kind attention.


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