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Design of Catalyzed Gasoline Particulate Filter (cGPF) and Investigation of Its Durability Performance Using Accelerated Engine Aging
Technical Paper
2019-01-0970
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Catalyzed gasoline particulate filters (cGPF) are one of the most effective emission control technologies for reducing gaseous and particulate emissions simultaneously. Successful adoption of this advanced technology relies on several important performance properties including low back pressure, high filtration efficiency and specially durability compliance. In this work using an underfloor cGPF, the backpressure control was achieved through optimizing catalyst coating technology and modifying the deposition profile of catalyst coating along GPF channels. Durability performance was demonstrated by using an accelerated engine aging method with selective blending of lubricating oils in fuel, which incorporates the aging mechanisms of thermal aging, ash loading, and soot accumulation/regeneration. The target durability demonstration represents 200,000 km real world operation. The durability performance was evaluated by a series of vehicle emission tests, and comparison with traditional thermal aging methods, such as GMAC-875°C. Additional characterization methods, such as Scanning Electron Microscopy/Energy Dispersive X-Ray Spectroscopy (SEM-EDS), X-Ray Fluorescence (XRF) and backpressure measurement were applied to investigate the ash deposition profile inside cGPF and interaction with cGPF, and the properties of ash obtained from two different lubricant formulations respectively. The results show that the three-stage aging protocol developed from this work can effectively demonstrate cGPF durability performance. At the end of durability testing, the aged cGPF can still meet China 6 emission regulation requirement.
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Authors
- Wenzheng Xia - Kunming Sino-Platinum Metals Catalyst Co.
- Xinbo Yuan - Kunming Sino-Platinum Metals Catalyst Co.
- Dongxia Yang - Kunming Sino-Platinum Metals Catalyst Co.
- Yi Zheng - Kunming Sino-Platinum Metals Catalyst Co.
- Depeng Zhao - Kunming Sino-Platinum Metals Catalyst Co.
- Chengxiong Wang - Kunming Sino-Platinum Metals Catalyst Co.
- Xiaokun He - Kunming Sino-Platinum Metals Catalyst Co.
- Huifang Shao - Afton Chemical Corp.
- Guillaume Carpentier - Afton Chemical Corp.
- Joesph Remias - Afton Chemical Corp.
- Joseph Roos - Afton Chemical Corp.
- Danhua Yin - Afton Chemical (Suzhou) Co. Ltd.
- Yinhui Wang - Afton Chemical (Suzhou) Co. Ltd.
- Ke Jian Liang - Afton Chemical (Suzhou) Co. Ltd.
Topic
Citation
Xia, W., Yuan, X., Yang, D., Zheng, Y. et al., "Design of Catalyzed Gasoline Particulate Filter (cGPF) and Investigation of Its Durability Performance Using Accelerated Engine Aging," SAE Technical Paper 2019-01-0970, 2019, https://doi.org/10.4271/2019-01-0970.Data Sets - Support Documents
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