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2017 STEAM POWER SYSTEMS INDUSTRY PRODUCT CATALOG

GE Power

Iron & Steel

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PORTFOLIO AND OVERVIEW IRON & STEEL, NON-FERROUS AND MINING INDUSTRY SOLUTIONS

GE has supplied air quality control solutions (AQCS) to the industry for more than 70 years.

Tailored to industry needs, our cost-effective solutions minimize air pollution from

ore to finished products, while increasing energy efficiency and recovery of waste heat

to reduce the energy demand of the plant.

Engineered SolutionsGE has the engineering capabilities and the process specialists to deliver integrated solutions that are cost and energy efficient from the suction hoods to the stack.

Reliable Operation Our systems have a proven track record with high reliability for minimized maintenance and continuous operation.

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INTRODUCTION

Innovative Digital CapabilitiesCombining the strengths of GE’s advanced technologies with our agile digital technologies we can help you achieve even better performance, greater efficiencies and improved reliability for both new plants and installed units.

Environmental ComplianceOur systems are designed to meet every requirement and we can always supply cost effective systems for compliance.

Sintering PlantPrimary gas cleaningDedusting, DeSOx, DeNOx

Secondary gas cleaningDedustingHeat RecoveryDucting, Hoods, Dampers, fans, stack

Refining UnitPrimary gas cleaningDedustingSecondary ventilationDedustingDucting, Hoods, Dampers, fans, stack

Electric Arc FurnacePrimary gas cleaningDedusting, quenching, HF/HCL Dioxines removalSecondary ventilationDedustingHeat RecoveryDucting, Hoods, Dampers, fans, stack

Basic Oxygen FurnancePrimary gas cleaningDedustingSecondary ventilationDedustingDucting, Hoods, Dampers, fans, stack

Coke OvenRaw gas cleaningWESPPrimary gas cleaningDedusting, DeSOx

Secondary gas cleaningDedustingDucting, Hoods, Dampers, fans, stack

MiningSecondary gas cleaningDedustingDucting, Hoods, Dampers, fans, stack

EXTRACTION RAW MATERIAL PREPARATION

IRON MAKING

STEEL MAKING

Blast FurnacePrimary gas cleaningDedustingSecondary ventilationDedustingDucting, Hoods, Dampers, fans, stack

Engineered Solutions to Meet Industry Needs We provide full turnkey solutions to meet your air quality control system requirements that fulfill the most rigorous emission regulations. With our dedicated engineering resources, we integrate our customized solutions directly into your plant.

Our products meet the requirements of the European Union Industrial Emissions Directive (IED) and conform to its current Best Available Technology (BAT) reference document. We tailor our solutions to your requirements, ensuring that the products we recommend precisely meet your specifications. We also ensure that they are installed with the minimum amount of disruption in the most cost-effective way possible.

Primary EmissionsElectric Arc Furnace primary emissions are controlled by a set of water-cooled ducts with robust design for high availability with efficient gas cooling. An adjustable sliding sleeve in the elbow duct allows air to be sucked into the system to dilute the primary gas and CO combustion in the post-combustion chamber.

Secondary VentilationWe tailor hoods and ducts for secondary ventilation in areas for raw material handling or casting and pouring of pig iron and hot metal. We design the hoods for optimal and energy efficient gas collection using computational fluid dynamics.

The layout is optimized for maximized collection efficiency. The gas collected is treated in Fabric Filters or ESPs for efficient particulate removal.

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I&S, NON-FERROUS AND MINING

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COMPLETE SOLUTIONS

Hot Quenching – Cost-Effective Emissions ControlTo treat PCDD/F, CO and VOC emissions, we combine a post combustion chamber with a hot quenching tower. This rapidly cools gases to below 250ºC after combustion and inhibits the novo-synthesis of PCDD/F. This technology reduces the need for extensive water-cooled ducting. We also supply forced draft coolers and radiant coolers (hair pin coolers) for primary gas cooling.

Customized Enclosures for Noise ReductionWe design and supply industry specific noise enclosures to dampen noise associated with melting and rotating equipment. These enclosures can be retrofitted to existing meltshops and adapted to your specific plant layout.

NOx reduction through Selective Catalytic Reduction (SCR)Our SCR technology reduces emissions of NOx by adding ammonia or urea with the aid of a catalyst to form nitrogen and water. Our SCR systems are designed to meet a high degree of NOx removal (up to 95% removal efficiency) while guaranteeing low reagent consumption as well as low slip of ammonia to the atmosphere (2ppmv). This is achieved by leveraging GE s know-how in designing efficient reagent injection grids and employing in-house CFD capabilities.

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I&S, NON-FERROUS AND MINING

Technical Product Specifictions

Dry Electrostatic Precipitators (ESP) technical features

Gas Flow Rate 10 - 2,000 m3/s

Gas Temperature 70 – 400 °C

Dust load Up to 2 g/Nm³

Emission at ESP outlet 10 – 200 mg/Nm³

Removal efficiency Up to 99.95%

Availability Up to 98%

DedustingFor particulate removal, we offer electrostatic precipitators (ESP) or fabric filters (FF). Before dedusting the primary and secondary flue gases can be mixed in the main duct. ESP performance can be boosted with pulse energisation or SO3 injection to successfully reduce peak particulate emissions.

Our fabric filters are specifically designed to meet the latest emission standards for the industry and can achieve particulate emissions as low as 1mg/Nm3. We supply both reversed air and pulse jet type filter systems. Our pulse jet fabric filters have been designed to integrate the Optipow pulse jet valve that permits the use of longer filter bags (up to 10 meters long). As a result the overall footprint of the fabric filter can be minimized. Pulse jet fabric filters can be cleaned in on and off-line modes.

Wet Electrostatic Precipitators (ESP) technical features

Gas Flow Rate 15 - 2,000 m3/s

Gas Temperature Up to 70 °C, saturated gas

Dust load Up to 1.2 g/Nm³

Emission at ESP outlet down to 0.5 mg/Nm³

Removal efficiency Up to 99.95%

Availability Up to 98%

Fabric Filters (FF) technical features

Types Reverse Air Filters & Pulse jet filters

Gas Temperature 65 – 260 °C

Gas Flow Rate 10 - 1,500m3/s

Dust Loading at FF inlet 2 - 100 g/Nm3

Emission at FF outlet down to 1 - 5 g/Nm3

Availability Up to 99%

Bag Life Guarantee 1 to 6 years, depending on application and filter type

Flue Gas DesulfurizationOur portfolio for flue gas desulfurization reduces emission of SOx by adding dry or wet sorbent and converting it into an inert compound that can be safely disposed. Our FGD systems can be either dry or wet and achieve up to 95% removal of SOx. GE can design and deliver FGD systems for a large number of applications, including boilers, sinterbands and coke ovens.

Our dry sorbent system is a low cost dry flue gas desulphurization system for low to medium SOx removal requirements. Our technology can use different sorbents depending on requirements and availability. The sorbent is injected directly into the flue gas with the SOx reduction reaction taking place in the flue gas channel and on the filter bags in the downstream bag filter. For the Dry systems there is no need for waste water treatment.

Drypac is our advanced high efficiency, low cost semi-dry flue gas desulfurization system which offers multipollutant control with zero waste water discharge. Drypac incorporates a column where acid gases like SOx , HCl and HF react with lime milk in a spray tower. Once the abatement reaction is finished, particulate matters are removed from the flue gas in a downstream dedusting unit. Our Wet FGD systems are tailored for any SOx abatement and have a compact foot print specifically for non-ferrous applications. The Flowpac WFGD contains a turbulent bed absorber, in which a flue gas passes through limestone slurry. It is targeted for applications requiring increased SO2 removal efficiency and enhanced SO3 removal efficiency.

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TECHNICAL PRODUCT SPECIFICATIONS

Founded in 1994, Italiana Coke is a major European supplier of coke for foundries and steelworks. At its Cairo Montenotte plant, Italiana Coke produces over 500,000 tons of coke per year. GE supplied a new exhaust hood and a new network to capture and filter dust generated during the coke pushing process. Incorporating all the dimension and fluid dynamic parameters from the field and from the pushing machine designer, GE provided a high collection capacity hood to improve the efficiency and reduce the diffuse emissions of the plant.

The hood has been installed on the new coke-guide machine to ensure better dust collection from the furnace. Through a mobile connection system with the exhaust manifold, the hoods run over the 350m of the 4 furnaces. The fumes are treated in a new fabric filter equipped with 8m long bags, and the atmospheric emissions are kept below the European standards (<1mg/Nm3 at chimney or <5g/t coke produced).

Spray Dryer Absorber (SDA) technical features

SO2 / SO3 / HCl / HF removal rate Up to 95%

Maximum SO2 content at inlet 6,000 mg/Nm³

Maximum gas flow rate per absorber Up to 1,150,000 m3/h

Particulate emission guarantee 10 mg/Nm³

Max inlet temperature 260 °C

Load range per absorber 15 – 100%

Reagent Ca(OH)2 or CaO

Availability up to 98%

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