LNA Experience DSI and Ceramic Filter Technology using Sorbacal ® Lhoist North America May 1, 2014

2  Lhoist North America sounds like ‘Luh-wost’  Chemical LimeFranklin Industrial Minerals  Chemical Lime and Franklin Industrial Minerals merged to form Lhoist North America Limestone, Quicklime, Slurry, Hydrate (Sorbacal®)  Suppliers of high quality chemical grade calcium products including Limestone, Quicklime, Slurry, and Hydrate (Sorbacal®)  Lhoist Group – Worldwide  World’s largest lime company  Lhoist has been in business for more than 120 years  88 plants in 25 countries in Asia, Europe and the Americas Ste Genevieve, MO Plant

3 DSI Effectiveness Factors  Reagent Properties – physical and chemical  Reagent reactivity  Reagent surface area  Reagent porosity  Flue Gas Properties  Temperature  Flue gas moisture  Other competing acid gases  Injection System Configuration  Particulate control device  In flight residence time  Reagent mixing  Injection location

4 Calcium based Additives for DSI  Reaction of Ca(OH) 2 with acidic gas components:  Acid – Base reaction through Gas – Solid contact  Surface area and pore volume very important

5 Cement Industry Glass Industry Brick Industry … Waste Incineration Municipal Waste Hospital Waste Industrial Waste Sludge Power Plants Industrial Processes Coal Fired boilers Biomass boilers SO 2 SO 3 HF Se SO 2 SO 3 HF HCl DSI Sorbacal ® Applications HCl

DSI in Ceramic Filters 6 Source:

Temperature Considerations 7 Source: Source: Carmeuse NA Example Curve of Standard Hydrate Performance Sorbacal ® SPS performance greatly improves the SO 2 removal in this temperature zone

Test with Tri-Mer Ceramic Filter and Sorbacal Optimized Hydrated Lime Products 8

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Test with Tri-Mer Ceramic Filter and Sorbacal Optimized Hydrated Lime Products 11

Test with Tri-Mer Ceramic Filter and Sorbacal Optimized Hydrated Lime Products 12

Test with Tri-Mer Ceramic Filter and Sorbacal Optimized Hydrated Lime Products 13 Sorbacal ® SP Performance

14 US Industry Examples Utilizing DSI with Ceramic Filters Dry Sorbent Injection using:

15 Thank You! Questions?Contact: Howard Fitzgerald Lhoist North America 3700 Hulen Street Fort Worth, Texas