1. ERG (Air Pollution Control) Ltdwww.ergapc.com Case Studies Gas Scrubbing using V-tex TM Technology

2. ERG (Air Pollution Control) Ltd www.ergapc.co.uk V-texTM case study | Pharmaceuticals GlaxoSmithKline Removal of Acetic Acid vapour from 1000 ppm to below limit of detection Removal of Acetic Acid vapour from 1000 ppm to below limit of detection Gas flow range 50 to 1000Nm 3 /hr Gas flow range 50 to 1000Nm 3 /hr Maintenance free operation since installation in 1997 Maintenance free operation since installation in 1997

3. ERG (Air Pollution Control) Ltd www.ergapc.co.uk V-texTM case study | Optical Fibres Optical Fibre Manufacturer in Denmark Removal of HCl and SiO 2 Removal of HCl and SiO 2 Five 2 stages units Five 2 stages units Scrub liquor contained up to 5% weight SiO 2 with no blockage Scrub liquor contained up to 5% weight SiO 2 with no blockage

4. ERG (Air Pollution Control) Ltd www.ergapc.co.uk V-texTM case study | Petrochemicals Major petrochemical refinery in USA Removal of chlorine 100 ppm, HCl 1500 ppm and SO2 500 ppm in a gasflow of 1000 Nm3/hr Removal of chlorine 100 ppm, HCl 1500 ppm and SO2 500 ppm in a gasflow of 1000 Nm3/hr Temperature of gas 485°C Temperature of gas 485°C 1 % sodium hydroxide scrub liquor 1 % sodium hydroxide scrub liquor Removal efficiency 99.9% Removal efficiency 99.9%

5. ERG (Air Pollution Control) Ltd www.ergapc.co.uk V-texTM case study | Chemicals Schering Plough Stainless steel unit, designed for 200oC and FV to 16 barg to BS5500 Stainless steel unit, designed for 200oC and FV to 16 barg to BS5500 Gas flows ranging from 200 to 3600 Nm³/hr. Gas flows ranging from 200 to 3600 Nm³/hr. System to start up and achieve full scrubbing efficiency in extremely short time, to cover unexpected bypass requirements System to start up and achieve full scrubbing efficiency in extremely short time, to cover unexpected bypass requirements

6. ERG (Air Pollution Control) Ltd www.ergapc.co.uk V-texTM case study | Renewable Energy Stainless steel unit designed for 200°C and 3 barg Stainless steel unit designed for 200°C and 3 barg Gas flow of 13000 to 17000 Nm 3 /hr Gas flow of 13000 to 17000 Nm 3 /hr Removal of ammonia with an efficiency exceeding 99.5% Removal of ammonia with an efficiency exceeding 99.5% Removal of HCl to less than 1 ppm Removal of HCl to less than 1 ppm By-product of 12%wt ammonium sulphate By-product of 12%wt ammonium sulphate

7. ERG (Air Pollution Control) Ltd www.ergapc.co.uk V-texTM case study | Pharmaceuticals Novartis HCl scrubbing HCl scrubbing Hastelloy C276 and ECTFE/PTFE Hastelloy C276 and ECTFE/PTFE Pressure and explosion rating certified Pressure and explosion rating certified >99.5% HCl removal efficiency, batch scrubbing >99.5% HCl removal efficiency, batch scrubbing

8. ERG (Air Pollution Control) Ltd www.ergapc.co.uk V-texTM case study | Chemicals Cl 2 scrubbing Cl 2 scrubbing Chlorine scrubbing from process air stream Chlorine scrubbing from process air stream NaOCl by-product for sale NaOCl by-product for sale