De-NOx SCR System

Introduction of SCR De-NOx PaNox™ is the trade mark for De-NOx SCR system developed by PANASIA. Ltd. The trade mark represents the pride of PANASIA. which possesses the highest level of capabilities for De-NOx SCR system. 1.1 Influence of NOx NO + NO2 = NOx Problems with Climate and Air Quality- Greenhouse Effect- Ozone depletion- Smog- Acidification (Acid rain) Influence on humans- NO2 may decrease the long function and increase the risk of respiratory functions such as acute bronchitis, cough and phlegm, particularly in children. Influence on the environment- NOx contributes to acidification, smog and ground level ozone. 1.2 Selective Catalytic Reduction (SCR) 1.3 Functional Principle of the Catalyst External diffusion of NH3 to Catalyst surface Internal diffusion of NH3 into the catalyst pore NH3 adsorption on the active centers NO diffusion from gas phase to adsorbed NH3 Reaction of NO and NH3 to N2 and H2O Desorption from N2 and H2O form catalyst surface Diffusion of N2 and H2O into the gas Phase 1.4 The Reduction Agent for SCR De-NOx System Ammonia (NH3) Regular reduction agent Need more safety equipment Simple dosing system Urea (NH)2CO The most popular Reduction Agent More safe than ammonia dosing system Added heat duty for decomposition (300~350°C) 1.5 The Urea property as Reduction Agent Two concentrations are widely available Industry 40% w/w Transportation 32.5% w/w 1.6 Process Figure for SCR De-NOx (PaNOx System) 1.7 Catalyst Supplier for SCR De-NOx (PaNOx System)   Corrugated Type Modulation of catalyst 1.8 Applications of PaNOx 1.9 Performance of PaNOx System Performance Reduction NOx COHCNoise : By: 85 ~ 98%: 85 ~ 98%: 80 ~ 90%: 35 ~ 45 dB(A) Operational Range Temperature : 280 ~ 510 °C PaNox™ for Plant 2.1 Classification 2.2 Design Input for Engineering Process Property Exhaust Gas Volume Exhaust Gas Temperature Exhaust Gas Pressure Base Line emission (SCR Inlet) Fuel Type or Raw material for process Type of Application Allowable Site Space Utility Spec. (Instrument Air Pressure, Plant Air Pressure, Electric Power, etc) Control Scheme (Local / DCS) Defined Work Scope (Supply / Erection / Installation / Commissioning/Transportation) 2.3 Process Procedure for Project (Turnkey Project) 2.4 DESIGN & ENGINEERING for Incinerator's SCR De-NOx System- CFD (Computational Fluid Dynamics) for Flow analysis 2.5 Construction for Incinerator's SCR De-NOx System • PROJECT NAME :  KCES PROJECT  • SITE : YEOSU, KOREA   • DATE :  2005. 08    • SUPPLIER : PANASIA • FLOWRATE :  29,000 Nm3/hr at Dry Basis     Catalyst Module Guide Vane Urea Dosing unit   Urea Tank Spray Nozzle Process Fan PaNox™ Reference in Plant 3.1 New York Power Plant - OTSG (One Through Steam Generator) – SCR De-NOx System PROJECT NAME : ISTNY SITE : NEWYORK, USA DATE :  2006. 10 GENERATION POWER : 12 MW REDUCTION AGENT : Aq. NH3 (25% wt%) FLOWRATE : 170,000 Nm3/hr QUANTITY : 2 UNIT SUPPLY : AFCU Module, ADM, AIG Site View Dilution Air Fan   Local Control Panel Elec. Heater & Vaporizer Distribution Manifold 3.2 Hawaii Power Plant - HRSG (Heat Recovery Steam Generator) – SCR De-NOx System PROJECT NAME :  ISTHW SITE : HAWII, USA    DATE :  2008. 08 GENERATION POWER : 20 MW REDUCTION AGENT : Aq. Urea (40% wt%) FLOWRATE : 215,000 Nm3/hr QUANTITY : 2 UNIT SUPPLY : AFCU Module, ADM, AIG Site View AFCU Module Catalyst Carriage   Local Control Panel Urea Dosing System Distribution Manifold 3.3 SCR De-NOx System - IKSAN's Methane Engine PROJECT NAME : COGEN (WAUKESHA Engine) SITE : IKSAN, KOREA DATE : 2009. 04 GENERATION POWER : 327 kW REDUCTION AGENT : Aq. Urea (40% wt%) FLOWRATE : 1,641 Nm3/hr QUANTITY : 1 UNIT 3.4 Reference List NO. Customer Application Capacity System Q'ty Year 1 KIMM (Korea) Diesel Engine 1,000 Nm3/hr(240 kWh) PaNox™(SCR De-NOx) 1 2001 2 SK Corp. (Korea) Hot Air Generator 1,680 Nm3/hr(350,000 kcal/hr) PaNox™(SCR De-NOx) 1 2002 3 HHI (Korea) Diesel Engine 8,868 kg/hr, wet(1,200 kWh) PaNox™(SCR De-NOx) 1 2002 4 KCES Co., Ltd. (Korea) Incinerator (R/K) 33,800 Nm3/hr, wet PaNox™(SCR De-NOx) 1 2004 5 New York (USA) OTSG 170,000 Nm3/hr, wet PaNox™(SCR De-NOx) 2 2007 6 Hawaii (USA) HRSG 215,000 Nm3/hr, wet PaNox™(SCR De-NOx) 2 2008 7 Iksan City Hall Methane Engine 1,641 Nm3/hr(327 kWh) PaNox™(SCR De-NOx) 1 2009 PaNox™ for Marine 4.1 IMO Regulations (Marpol ANNEX VI) 4.2 Design Input for Engineering Engine Power Exhaust Gas Volume Exhaust Gas Temperature Base Line Emission (Engine Out) Fuel Quality Type of Application Maximum Allowable Backpressure Available Space Envelope Defined Work Scope (Supply / Erection / Installation / Commissioning/Transportation) 4.3 Design & Engineering Stress and Strain Conversion / Reduction Prediction Drawing Production Service & Maintenance Manuals Pressure Drop Consumption Component Specification 4.4 Feature of Our System Beneficial effect to reduce CO, HC, PM and Noise Application hi-Performance soot blower Automatic & Remote control system 4.5 Schematic Drawing 4.6 Typical Schematic Drawing Marine Engine Boiler SCR Reactor Reduction Agent Injection Nozzle NOx Analyzer (Option) Dosing Unit Reduction Agent Tank Reduction Agent Pump Mixer