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介绍了车用尿素溶液的工作原理、研发背景以及国内外车用尿素溶液的研究进展及市场发展情况。提出随着我国第Ⅳ阶段排放标准的实施,SCR技术是适合我国国情的重型柴油机节能减排技术路线,需要国家的规划和大力支持。
This paper introduces the working principle, R & D background of vehicle urea solution and the research progress and market development of vehicle urea solution both at home and abroad. It is pointed out that with the implementation of the fourth phase of China’s emission standards, SCR technology is a technical roadmap for energy-saving and emission reduction of heavy-duty diesel engines that suits our own national conditions and needs the planning and support of the state.