Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA

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• Waste heat boiler with 48 t/h (107klbs/h) steam capacity processingwaste heat from heat recovery cokeovens

• Finned tube design of EVAP and ECOlocated downstream SH

• Each boiler cleaned solely by2xEG10L SPG installed upstream SHand ECO (Shock Pulse Interval = 2h)

• Replaced 12 x steam soot blowers perboiler (type T20, D5E) - saved2.5 t/day of steam per boiler

• Trial run performed in 2016/2017 onboiler D3 – delivered SPGs for batteryA to C (in total 12 boilers) since then

• OEM waste heat boiler:Nooter/Eriksen (commissioned 1998)

• Operator: Cokenergy (SunCoke, USA)

EG10L Shock Pulse Generator (SPG) installed to LHS boiler wall

EG10L Shock Pulse Generator installed to rear boiler wall

Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA

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Dimensions ECO passWxLxH [mm]:2’300 x 2’000 x 4’000

Dimensions horizontal passWxLxH [mm]:2’300 x 7’000 x 3’700 (2’350 drum to drum)

EVAP 1Bareverticaltubes

SHBare horizontaltubes (stag-gered design)

EVAP 2+3Finned verticaltubes (finn pitch20-30mm)

ECO 1+2Finned horizontaltubes

Waste heatfrom heatrecovery cokeoven

Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA

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Soot blower boiler cleaning

SPG boiler cleaning

Boiler D3

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Soot blower boiler cleaning

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Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA

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Steam outlet temperature (normalized) =Mean steam outlet temperature x 1500

(inlet flue gas temperature S)

Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA

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12 x steam soot blowers(169 days of operation)

2 x Shock Pulse Generators(136 days of operation)

Boiler D3

Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA

6Boiler D3

12 x steam soot blowers(169 days of operation)

2 x Shock Pulse Generators(136 days of operation)

Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA

7Boiler D3

12 x steam soot blowers(169 days of operation)

2 x Shock Pulse Generators(136 days of operation)

Shock Pulse Generator Reference Plant:Waste Heat Boiler – Cokenergy, Chicago / USA

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