Diesel Exhaust Emission Control Technologies for Asian Market 亚洲市场柴油机废气排放控制技术

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1 Diesel Exhaust Emission Control Technologies for Asian Market 亚洲市场柴油机废气排放控制技术 Mukaram Syed ArvinMeritor, Inc. 阿文美驰公司 Technical Center, Columbus, Indiana, USA 1 Outline Introduction Diesel Engine Exhaust Challenges Technology Solutions Thermal Regenerator (PM) Urea-SCR (NOx) On-board Plasma Fuel Reformer (NOx) 2

2 ArvinMeritor s Global Reach ArvinMeritor is a global supplier to the commercial vehicle and light vehicle markets ArvinMeritor supplies $8B of automotive components globally 10 Years of business experience in China 6 manufacturing locations 3 additional manufacturing sites broke ground in 2004 Conduct business with major On- and Off-road OEMs in China: Changan Ford Shanghai GM Shanghai VW FAW VW Dongfeng Citroen Hainan Mazda China Brilliance Beijing CEV Jinhua Neoplan Golden Dragon Volvo Sunwin Bus Volvo Silver Bus Shanxi Eurostar Yaxing Group FAW FAW Penglai CNHTC Dandong Huanghai Suzhou KingLong Anhui Ankai 3 Light Vehicle Systems Motion Control Systems Roof Systems Door Systems Access Controls Filtration Systems Coil Coating Air and Emissions Technologies Wheel Products Modular Suspension Systems 4

3 Commercial Vehicle Systems #1 supplier of commercial vehicle components 5 Manufacturing Facilities Worldwide Europe Czech Republic France Germany Hungary Italy Netherlands Spain UK Asia China India Philippines Taiwan Thailand North America Canada Mexico USA South America Argentina Brazil Venezuela South Africa Cape Town Ga-Rankuwa 6

4 Facilities in China Manufacture Location CVC Location Represents new sites planned for 2004 Xuzhou Meritor Axle Co. Ltd. 60:40 Joint Venture ArvinMeritor LVS (Yantai) Co. Ltd. (Equity TBD) ArvinMeritor LVS (Shanghai) Co. Ltd. Pudong CVC- 100% ARM Meritor Huayang Braking Co., Ltd. (ShiYan) 60:40 Joint Venture ArvinMeritor LVS (Shanghai) Co. Ltd. Anting CVC 100% ARM ArvinMeritor LVS (Chongqing) Co. Ltd. 60:40 Joint Venture ArvinMeritor CVS (Shanghai) Co. Ltd. Free Trade Zone - 100% ARM Future CVC Planned for Nanjing For Mazda/Ford B2E Zhenjiang Meritor LVS Co. (II) Ltd. 100% ARM 7 Challenge to Diesel Engines Emissions Toxic hydro-carbons HC and CO Particulate matter (PM) NOx PM versus NOx trade-off Integrated PM + NOx solutions 8

5 Emission Control Technologies Particulate Matter NOx Oxidation Catalyst (DOC) Catalyzed Soot Filter (CSF) Thermal Regenerator (TR) Exhaust Gas Recirculation (EGR) Selective Catalytic Reduction (SCR) On-board Plasma Fuel Reformer DOC + CSF 9 Particulate Matter Reduction - Challenges The filtration system should be reliable throughout the engine/vehicle operation Exhaust backpressure should not exceed engine limitations Filter should maintain performance for all duty cycles System should perform over lifetime of the engine/vehicle Catastrophic failure occurs if the filter is not regenerating Regeneration must be controlled and reliable PM filter systems must be durable and serviceable 10

6 Thermal Regenerator (TR) What the product is: On-demand active regeneration technology for DPFs What the product does: Generates heat to eliminate soot from the filter >90% PM reduction efficiency Active control maintains 650C inlet gas temperature How regeneration works: Regenerates automatically at any engine condition including idle and low load Reliable ignition under any operating condition Requires no precious metal Does not generate excessive NO2 Works with both low and high Sulfur fuel Removable filter module design for easy ash cleaning Muffler Filter Combustion Chamber Controller 11 Engine speed (rpm) Exhaust gas back pressure (mbar) On Road Operation with Thermal Regenerator Supported Filter Regeneration Delivery Truck (7 L DI/TCI Diesel Engine) Engine speed Temp. upstream Filter Temp. downstream Filter 1200 Temperature maintained at 650ºC regardless of driving condition 1000 Thermal Regenerator off 400 Exhaust gas back pressure 200 Thermal Regenerator on Time (sec) Exhaust gas temperature (deg. C) 12

7 Typical TR System Performance 0.20 Engine Baseline Engine With Aged TR-DPF Composite FTP, g/bhp-hr % PM Reduction 0.00 PM 13 Modularity of Thermal Regenerator 14

8 Certification VERT Certified w/2000 hour durability test (Europe) U.S. Environmental Protection Agency (EPA) and California Air Resources Board (CARB) retrofit verification in-process ArvinMeritor has partnered with fleets, and engine and vehicle manufacturers to demonstrate the ability of the Thermal Regenerator (TR-DPF) technology to meet upcoming US2007 regulations 15 Field Experience Beginning in 1989, systems were manufactured in serial production and installed in European applications Main applications: city busses, garbage trucks, delivery vehicles having EURO 1 emission status In the US units are being demonstrated in many applications, i.e.: Class-8 truck Vocational truck & bus Off-road equipment 16

9 NOx Reduction: SCR NOx Reduction: Selective Catalytic Reduction (SCR) System What the product is Optimized SCR system What the system does High conversion of NOx (60 90%). No regeneration necessary High sulfur tolerance A mature, accepted technology in Europe What the system requires SCR Muffler Unit Urea, carried in an on-board tank that requires refilling, reacts with NOx over a catalyst to form Nitrogen and water 17 Integrated SCR System Urea dosing CAN ECU air SCR catalyst tank valve pump valve SCR/silencer 18

10 SCR Test Results (ESC) 19 On-Board Plasma Fuel Reformer Fuel Air Plasma-initiated partial oxidation Converts any hydrocarbon fuel into hydrogen-rich gas H 2, CO, light HC On-board & On-demand Consumes < 250 W Electric Current Reaction Chamber Hydrogen-rich gas 20

11 H2-Assisted NOx Adsorbers System Power Air Fuel Fuel Reformer Reformate NOx Trap A Engine To Tailpipe NOx Trap B Switching Valve 21 NOx Reduction Efficiency - Fixed Fuel Penalty Nox Adsorbed - % Diesel Reformate Exhaust Temperature - deg C 22

12 Potential Integrated PM + NOx Systems TR DPF Air Intake EGR Cooler EGR Valve NOx reduction with low pressure EGR Guaranteed filter regeneration by TR-DPF allows use of EGR to optimum NOx benefit PM reduction with TR-DPF Increased soot output due to PM-NOx trade-off effect is overcome by the use of TR technology 23 Potential Integrated PM + NOx Systems Reductant (Urea) DOC (optional) SCR TR DPF NOx reduction with SCR Proposed system allows operation of both Urea dosing and SCR catalyst in optimum temperature window PM reduction with TR-DPF The filter regeneration even at the cold location is guaranteed by TR 24

13 Thank You For Your Attention! Mukaram Syed Principal Engineer ArvinMeritor, Inc. Commercial Vehicle Exhaust Ph: (812) Fax: (812) Address: Technical Center, 950W 450S, Bldg.3 Columbus, IN 47201, USA Brooke Huntington Market Development Manager ArvinMeritor, Inc. Commercial Vehicle Exhaust Ph: (812) Fax: (812) Address: Technical Center, 950W 450S, Bldg.3 Columbus, IN 47201, USA 25