Recent Patents on Chemical Engineering

Yousheng Tao  
State Key Laboratory of Structural Chemistry
Fujian Institute of Research on the Structure of Matter
Chinese Academy of Sciences


Recent Solutions for the Abatement of Hydrocarbon Emissions During the Cold Start of Light Vehicles

Author(s): B. Puertolas, M. V. Navarro, J. M. Lopez, R. Murillo, A. M. Mastral and T. Garcia

Affiliation: Instituto de Carboquimica (CSIC), C/ M Luesma Castan 4, 50018 Zaragoza, Spain.

Keywords: Close-coupled catalyst, cold start emissions, electrically heated catalyst, hydrocarbon trap


During the last twenty years the number of patent publications in the field of the control of hydrocarbon compounds during the cold start period of a gasoline engine has strongly increased and seems now that the number of patents tends to increase during the following years. This fact has been related with increasingly stringent legislations all over the world which highlights the importance of developing efficient systems for the control of cold start hydrocarbon emissions. The technologies that show a higher number of patents are the hydrocarbon trap, the close-coupled catalyst and the electrically heated catalyst.

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Article Details

Page: [36 - 52]
Pages: 17
DOI: 10.2174/2211334711104010036