The Thermax Enviro Portfolio. Other ESP installations for reference ENVIRO DIVISION. Air pollution control. Cleaning the air for better returns

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1 The Thermax Enviro Portfolio ENVIRO DIVISION Air pollution control l Baghouses - Reverse Air, Pulse Jet & Insertables l Electrostatic Precipitators - Dry and Wet l Particulate Scrubbers - Venturi, Cyclonic l Gaseous Scrubbers - Packed Bed, Spray/Tray Towers l Flue Gas Desulphurization (FGD) Systems l Dedusting & Fume Extraction Systems l Coal Preparation Plants & Coal Injection Systems l Pushing Emission Control Systems for Coke Ovens l Combofilter l Retrofit and Rebuild l Spares & Services The division also undertakes turnkey projects to offer complete technology on air pollution control and its management The Electrostatic Precipitators on the front cover Sustainable Solutions in Energy & Environment Registered Office D-13, MIDC Industrial Area R D Aga Road, Chinchwad, Pune Phone : / Fax : enquiry@thermaxglobal.com Thermax Business Portfolio Heating Absorption Cooling ESP on Biomass fired boiler in a 9.9 MW unit Other ESP installations for reference Power Generation Air Pollution Control Chemicals Water and Wastewater Solutions Solar On two 80 TPH petcoke fired boilers in a 36MW captive power generation plant On a 14 TPH multi-fuel AFBC boiler used by a packaged food manufacturing MNC On a coal & sludge fired AFBC boiler at a viscose fibre plant in Indonesia Specialised Services Electrostatic Precipitators With special features to achieve low emissions On waste heat recovery boilers for sponge iron kilns On a clinker cooler in a cement plant August 08/2013 Cleaning the air for better returns In view of our constant endeavour to improve the quality of our products, we reserve the right to alter or change specifications without prior notice.

2 : Improving your Business is our Business ENVIRO DIVISION: Cleaning the air for better returns Cross Sectional View of a Typical Thermax ESP Thermax offers products, systems and solutions in energy and environment engineering to Industrial and commercial establishments around the world. Its business expertise covers, heating, cooling, waste heat recovery, captive power, water treatment and recycling, air pollution control and waste management and performance chemicals. Thermax brings to customers extensive experience in industrial applications, and expertise through technology partnerships and strategic alliances. Enviro division was conceived with a belief that Pollutants are inevitable but pollution is not. An acknowledged leader in Air Pollution Control business, it offers a wide range of Flange-toflange products, customised systems and value added services. Enviro is present in most industries and application segments therein, Viz. Cement, Iron and Steel, Power, Nonferrous metallurgical, Fertilisers, Tyres, Paper, Chemicals, Petrochemicals and Textiles. Corporate Office Pune, India TR SETS DISCHARGE ELECTRODE TIGI RAPPERS Operating from its headquarters in Pune (Western India), Thermax has built an international sales & services network spread over South East Asia, Middle East, Africa, Brazil, UK and US. It has a full fledged manufacturing set up that is certified for ISO 9001:2000, ISO and safety management according to OHASAS (ISO 18000). Energy & Environment Research Centre, Pune, India Enviro Division Office, Pune, India GAS DISTRIBUTION SCREENS ELECTRODE Enviro Division, Manufacturing Facility, Solapur, India

3 Electrodes Discharge electrode The Thermax discharge electrode possesses excellent performance characteristics over a wide range of applications. l Rigid structural matrix. l Precisely manufactured to fit within the collecting plate arrangement. l Fabricated from structural tubing with uniformly spaced corona studs to optimise voltage/current relationship. l Corona studs are annealed to prevent fatigue cracking. l Design configuration minimizes arcing and allows considerably elevated voltage before sparkover occurs. Collecting Electrode l Accurate plate alignment tolerance. l Structural integrity and superior ability to transmit rapping energy and its clean ability under all types of service conditions and plate heights. l Preformed modules with interlocking edges that fit/ snap securely together and require no field assembly. l The top and bottom edges are reinforced and stiffened by tubular structural members. l Mechanical interlock prevents deformation and oil canning. Typical Discharge Electrode System DISCHARGE ELECTORDE A Typical Collecting Surface Arrangement PRECIPITATOR ROOF PLATE ANVIL RAPPER ROD GIRDER FLOATING CHANNEL SPACE BAR DISCHARGE ELETRODE SUPPORT DISCHARGE ELETRODE BOTTOM GUIDE FRAME ROOF GIRDER & SUPPORT Rapping System l TIGI - Thermax impulse gravity impact type rappers. Gravity assisted rapping effectively reduce the Re-entrainment. l Complete rapping mechanism is placed outside the gas stream on roof facilitating on-line maintenance. l Can provide maximum plate acceleration in excess of 200 g s. l The electric single impulse (ESI) rapper accommodates on-line adjustment of rapping intensity and frequency. l 100% microprocessor backup. l Longer life resulting from less wear and tear. l Uniform distribution of force. l Ideally suitable for installations with variable process conditions. Electrical Components Transformer Rectifier l Extra heavy duty design suitable for 120 or 90 KV peak voltage, based on application requirements. l Built-in current limiting reactor to protect the electrical system from frequent short circuit in the field. l Top as well as side output HT bushing. l Pressure release valve to take care of excess pressure in tank. Control Cabinet l Complete automatic transformer rectifier control. l Glow tubes are provided in the field for feedback circuit for protection. l Necessary surge suppressors are provided for noise elimination. l Audio-visual alarm annunciator and time totaliser are provided. l Back-up over current protection is provided. TR Sets & TIGI Rappers on a precipitator roof- a typical arrangement

4 Optiklin - The Thermax Intelligent Microtapper Controller Utilities l A Programmable Logic Control based system for efficient and optimum operation of the rappers. l Highly reliable with improved immunity to noise and adverse industrial supply conditions. l Easily programmable for individual applications. l Excellent LCD Touch Panel Graphic Human Machine Interface which incorporates live mimic, alarms, diagnostics, reports and help menus with password protection. l Ensures precise setting of lift, round trip time etc. l High current solid state switches used for Row and Column selection which allows for long, trouble free life. l Rugged power source with built-in safety for the maximum current and voltage levels. l Detection of rapper open and short - circuit conditions and their annunciation. l High efficiency, less power loss and less heating of the panel. l Compact panel - lesser number of components allows for easy maintenance. l Easily expandable for larger systems. l Experience in dealing with a multitude of fuel types has provided extensive data base to accurately determine most economical design for optimum performance under varying load conditions. l Continuing accumulation of operating data and verification of design assumptions ensure a high degree of reliability in precipitator sizing and performance guarantees. Ancillaries ESPs on coal fired CFBC boilers in a 2X135 MW unit ESPs on PC fired boilers in a 2X150 MW unit l A variety of peripheral systems form part of our overall system design and supply capability. l These include conditioning towers, duct work, stacks, fan, screw conveyors, duct valves, bucket elevators, storage silos and supporting steel, all of which can be supplied on a turnkey basis. Cement & Rock Products l Computerised Flow Modeling facilities, available in-house, can be taken up for ensuring proper gas distribution in critcal cases, typically for high flow rates. Captive Power Plants l One of the rock products industry's most highly respected suppliers, the low operating and maintenance costs of these precipitators are a result of extensive experience in the industry. l Experience in the industry covered electrostatic precipitators for gas cleaning or product recovery from wet and dry process rotary kilns, clinker coolers, dryers and ball mills for raw and finish grinding. l Electrostatic precipitator for other rock product applications include material from kilns processing alumina, dolomitic lime, sludge lime for the paper industry, metallurgical lime and others. ESP after 107 TPH, F Grade & Petcoke fired CFBC Boiler in Captive Power Plant for Cement Industry, India ESP after 85 TPH, Indonesian coal fired CFBC Boiler Captive Power Plant for Cement Industry, Yemen in Four stage suspension preheater kiln precipitator (right) and alkali bypass precipitator (left) ESP on clinker cooler, handling 4,38,000 m3/hr. ESPs for 43 MW, Captive Power Plant ESP after Coal & Sludge fired AFBC Boiler ESPs after 4X250 TPH CFBC boiler in 4X61.5MW Power Plant

5 Pulp & Paper Recovery Boiler Precipitators l Leading suppliers of particulate emission control systems for the pulp and paper industry. l Modern steel casing design features no internal struts, vanes or rapping devices that could lead to dust buildups. l Development of the top or bottom inlet and outlet plenum configurations which minimise the potential for salt cake buildup. l The TIGI system including the heavy gauge T-Line collecting electrode, electric impulse rapper, heavy duty transformer rectifiers,state of the art PLC based controls, and a heavy duty dry bottom drag system conveyor, adds upto one of the most reliable and preferred recovery boiler precipitator systems in the industry today. Steel l Leading supplier to the sponge iron segment. ESP on recovery boiler in a paper plant Sinter Plant Application Sinter Plant Waste Gas and Plant De Dusting ESP Sintering process is a pre-treatment step in the production of iron, where fine particles of iron ores, Coke, Flues viz., Lime stone & Dolomite and in some plants, also secondary iron oxide wastes (collected dusts, mill scale), are agglomerated by combustion process. Agglomeration of the fines is necessary to enable the passage of hot gases during the subsequent blast furnace operation. Thermax by leveraging its vast experience in steel vertical has also gained entry in Sinter Plant Application. With required application know how and trust worthy engineering and execution capability we have successful running installations in the industry. Pelletisation Plant Waste gas ESP on 90 m2 Sinter Grate Area l The precipitators are used in sinter plants to capture fine particulate generated in the mixing and agglomerating of iron ore and other additives for blast furnace feed stock. l Tars and other particulates in coke oven gases are removed by tubular or concentric ring precipitators before the gas is recovered and collected for storage as an energy source for coke oven operation. The stored gas is cleaned by a secondary fuel gas precipitator prior to combustion in the ovens. This process removes a majority of the remaining tars and particulates to ensure proper gas flow through the oven combustion nozzles. l Precipitators are operating in open hearth and basic oxygen shops to remove particulates before exhaust gases are discharged into the atmosphere. Iron ore Pelletisation & hardening process takes place in the Ore mine far from the Location of Iron & Steel making process. The Pelletisation plant transform the Iron ore fine Powder into hard lumps or balls for transportation & as a direct feed into Blast Furnace for Iron making. The process involve mixing of Iron Ore, Bentonite as binder & fluxes in certain proportion by adding water & rotating in a drum designed to give a spherical shape of approximately 8 to 16 mm size, the pellet thus produced are referred to as "Green Pellet". These pellets are Baked in an Indurating Furnace at approximately 800 to 1000 Deg C high enough to transform to a semi molten state & subsequently cooled & discharged as hardened Iron Pellets. ESPs for 2 X 4.5 MTPA Pellet Plant in Oman Cocentric collecting electrode tar precipitator for 1.8 MTPA Coke Oven.

6 Application: Pelletisation ESP for Process Gas (Wind Box & Hood Exhaust) & Plant de-dusting ESP. Process: This process requires high Gas flow Volume out of Wind Box underneath the belt & hood installed on top of Pellet Plant. Two FD fan create the necessary draft required for Indurating machine & Gases are suctioned out using wind box ID Fan & Hood exhaust ID fan as shown in the schematic Diagram below).these dust laden gasses are made to pass through an ESP before letting through stack to atmosphere. The collected fine dust in ESP is again send back to ore preparation plant to be reduced to pellet. This process of reducing pellet is referred to as Straight - Grate Process. Application: Pelletisation ESP for Process Gas (Draft Drying & Pre-Heating ESP) & Plant de-dusting (Pellet Cooler & Screening area ESP). Process: Two or more FD fan pumps in ambient air underneath the cooler beds & heated air is used to drying green pellets. A series of ID fan at the out let draws the dust laden air & is processed in an ESP before letting through the chimney & these are typically referred to as Draft Drying ESP, Pre-Heating ESP, Pellet Cooler ESP. In plant dedusting is done using a Screening ESP. This process of reducing Pellet is referred to as Grate -Kiln Process. Chemicals, Food Industry & Non-Ferrous Metals l Our extensive process knowledge, vast experience and specialised equipment have helped to solve a variety of air pollution, material recovery and gas cleaning problems in the chemical processing and non-ferrous metal refining industries. l Continuous development has resulted in improved designs for various demanding applications, e.g. our enclosed tube balanced pressure acid mist precipitator with a design that effectively protects against tube collapse common with exposed tube section types. l TIGI System Precipitators have been used successfully in petroleum refineries to remove catalyst and coke lines from exhaust gases. l ESPs have been designed and manufactured to handle gases generated from processing operation for copper, zinc, chromium, sodium carbonate, phosphorus pentoxide and calcium fluoride. l Dry precipitators are being used to remove solid particulate from gases which contain sulfur oxides. In some applications, these gases are then passed through our tubular lead acid mist units to remove corrosive acids harmful to the equipment and catalysts used in the manufacture of sulfuric acid. ESPs for 4.1 MTPA Pellet Plant in INDIA ESPs for 4.1 MTPA Pellet Plant in INDIA One 36 tube FRP tubular fibre glass acid mist precipitator (Wet Electrostatic Precipitator) Electrostatic Precipitator for Alumina Calcination Kiln Gas Flow - 20,616 m3/hr Steel : Other applications In Addition to Sponge Iron plant, Sinter Plant, Pelletisation Plant, Coke Oven Plant our Electro Static Precipitators preferred equipment for Blat Furnace - Stock House, Cast House, BOF Secondary Dedusting and Scarfing Machine. Boiler ESP for Food Industry, Russia ESPs after 170 TPH and 60 TPH TG Boiler for Sugar Industries, Thailand