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Recent Trends in Heat Recovery Cokemaking Processes - ABM

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SCE Horizontal HR Coke Plant Improvement Summary<br />

Critical Areas for Customers Next Plant Future Plants<br />

Footpr<strong>in</strong>t Potential 30% Smaller >30% Smaller<br />

Capital Cost Value Eng<strong>in</strong>eered -<br />

Lower Capital<br />

Further Capital Decrease Driven by<br />

Footpr<strong>in</strong>t<br />

Coke Yield Lower Yield Loss Increased Yield Ga<strong>in</strong><br />

Lower Coal Cost Flexibility for Stamp Charg<strong>in</strong>g<br />

Predictive coal blend model<strong>in</strong>g<br />

improvements<br />

New Designs<br />

Turndown Greater than 25% >50% and Turn Off<br />

Environmental Regs Meet or exceed New EPA Regs Exceed EPA Regs<br />

Cont<strong>in</strong>ue to set the standard<br />

Oven Operation/Life New Monitor<strong>in</strong>g Tools Structure<br />

Improvements<br />

New Materials of Construction and<br />

CFD/FEA<br />

Increased Power New HRSG Design Further Improvements based on<br />

CFD<br />

September 2011 SunCoke Energy 25

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