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Environ Sci Pollut Res Int

Title:		"The effects of ash inside a platinum-based catalyst diesel particulate filter on particle emissions, gaseous emissions, and unregulated emissions"
Author(s):		Wang H; Ge Y; Tan J; Hao L; Peng Z; Wang X; Wu L; Li Y; Yang J; Li J; Yang D;
Address:		"National Laboratory of Auto Performance & Emission Test, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China. Collaborative Innovation Centre of Electric Vehicles in Beijing, Beijing, 100081, People's Republic of China. National Laboratory of Auto Performance & Emission Test, School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China. geyunshan@163.com. Collaborative Innovation Centre of Electric Vehicles in Beijing, Beijing, 100081, People's Republic of China. geyunshan@163.com. Kunming Sino-Platinum Metals Catalyst Co. Ltd, Kunming, 650106, People's Republic of China. Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming, 650500, People's Republic of China"
Journal Title:		Environ Sci Pollut Res Int
Year:		2018
Volume:		20181001
Issue:		33
Page Number:		33736 - 33744
DOI:		10.1007/s11356-018-3328-9
ISSN/ISBN:		1614-7499 (Electronic) 0944-1344 (Linking)
Abstract:		"Ash deposited in the DPF cannot be burnt, which will affect the service life of DPF. However, previous works focused on the effect of ash on the engine exhaust emissions are limited. Therefore, the influence of ash on the emissions was studied in this work. The particle emissions, the gaseous emissions, and the unregulated emissions (carbonyl compounds and volatile organic compounds) were measured by an AMA4000 gaseous analyzer, ELPI, HPLC, and GC-MS, respectively. Research results indicate that the filtration efficiency decreases by 0.57-4.49% for accumulation mode particle of particulate matter, while it has very little effects on the other type and the particle number in the presence of ash. For regular gaseous pollutions, ash has no influence on CO(2) and NO(x) emission, while CO and THC increase by 68.2% and 91.0%, respectively. For unregulated emissions, overall, carbonyl compounds increase by 41-150% and the BTEX decreases by 8.6-23.6% after ash formed. The change is mainly caused by the increase in the exhaust backpressure that plays a key role"
Keywords:		"Air Pollutants/*analysis Catalysis Chromatography, High Pressure Liquid Environmental Monitoring/instrumentation/methods Equipment Design Filtration/*instrumentation Gas Chromatography-Mass Spectrometry Gases/analysis Particle Size Particulate Matter/anal;"
Notes:		"MedlineWang, Haohao Ge, Yunshan Tan, Jianwei Hao, Lijun Peng, Zihang Wang, Xin Wu, Legang Li, Yanhong Yang, Jia Li, Jiachen Yang, Dongxia eng 51476012/National Natural Science Foundation of China/ 5157060575/National Natural Science Foundation of China/ 2016YFC0208005/National High-tech Research and Development Program/ Germany 2018/10/03 Environ Sci Pollut Res Int. 2018 Nov; 25(33):33736-33744. doi: 10.1007/s11356-018-3328-9. Epub 2018 Oct 1"