From November 16th to 18th, 2019, the key national special research and development plan led by Sinocat Environmental Technology Co., Ltd., “Research on Causes and Control Technology of Air Pollution”, “Research on Pollution Emission Control Technology and System for Alternative Fuel Vehicles and Motorcycles” The third annual work summary meeting of the project was successfully held in Chengdu.
The conference invited Chinese academicians and experts from the 21st Century Agenda Management Center, the Chinese Academy of Sciences' Ecological Environment Research Center and the National Environmental Protection Department's Motor Vehicle Emission Monitoring Center to come to the meeting for evaluation and guidance. Guangxi Yuchai Machinery Co., Ltd., Weichai Power Co., Ltd., Jiangmen ground river Group Co., Ltd., China Automotive Engineering Research Institute Co., Ltd., Sichuan University, Wuhan University of Technology, Wuhan Lingdian Automotive Electronic Control System Co., Ltd. More than a dozen project units and project management personnel such as Wuxi Weifu Lida Catalytic Purifier Co., Ltd. and the Institute of Process Engineering of the Chinese Academy of Sciences participated in the report.
China has abundant natural gas resources, and in recent years, natural gas vehicles have developed rapidly. By the end of 2018, China's natural gas vehicle ownership reached 6.7 million units, an increase of 620,000 units, an increase of 10.20%, ranking first in the world for five consecutive years. Among the exhaust gas discharged from natural gas vehicles, the conventional pollutants are mainly NMHC, NOx and CO. The unconventional pollutants are mainly methane (CH4), of which CH4 accounts for more than 90% of the total HC. CH4 is the main greenhouse gas. China is also the largest producer and user of motorcycles, and the number of motorcycles is close to 50% of the world. By the end of 2018, the number of motorcycles in the country reached 87 million, an increase of 5 million from the 82 million in 2017, with a growth rate of 6%, ranking first in the world. From the characteristics of PM2.5 emission from exhaust gas, the PM2.5 particle size emitted by natural gas vehicles and motorcycles is less than <0.1μm, which is smaller than the particle size of PM2.5 emitted by diesel vehicles (0.3μm, H.Burtscher, Aerosol Science, 2005, 36, 896-932). The smaller the particle size of PM2.5, the greater the toxicity to the human body. Therefore, it is necessary to strictly control the pollutant emissions of natural gas vehicles and motorcycles.
Faced with the urgent need for motor vehicle pollution control, the national key research and development plan “Research on Causes and Control Technology of Air Pollution” has focused on pollution emission control technology and system research projects such as diesel vehicles, gasoline vehicles, alternative fuel vehicles and motorcycles. Among them, “Research on pollution emission control technology and system for alternative fuel vehicles and motorcycles” was undertaken by Sinocat Environmental Technology Co., Ltd., Sichuan University, Wuhan University of Technology, Guangxi Yuchai Machinery Co., Ltd., Weichai Power Co., Ltd., etc. More than 10 units participated in the research and development of new high-performance rare earth catalytic materials and high-efficiency stable catalysts for the development of alternative fuel vehicle country VI standards and national IV motorcycle standards, and the formation of reliable natural gas vehicles and Motorcycle pollution emission control post-processing system integration technology and promotion and application, supporting China's motor vehicle pollution reduction. After three years of operation, the project has made significant progress through the joint efforts of the participating units.