On the high-temperature combustion of n-butanol: Shock tube data and an improved kinetic model
Type
ArticleAuthors
Vasu, Subith S.Sarathy, Mani

KAUST Department
Chemical Engineering ProgramClean Combustion Research Center
Combustion and Pyrolysis Chemistry (CPC) Group
Physical Science and Engineering (PSE) Division
Date
2013-10-21Online Publication Date
2013-10-21Print Publication Date
2013-11-21Permanent link to this record
http://hdl.handle.net/10754/563094
Metadata
Show full item recordAbstract
The combustion of n-butanol has received significant interest in recent years, because of its potential use in transportation applications. Researchers have extensively studied its combustion chemistry, using both experimental and theoretical methods; however, additional work is needed under specific conditions to improve our understanding of n-butanol combustion. In this study, we report new OH time-history data during the high-temperature oxidation of n-butanol behind reflected shock waves over the temperature range of 1300-1550 K and at pressures near 2 atm. These data were obtained at Stanford University, using narrow-line-width ring dye laser absorption of the R1(5) line of OH near 306.7 nm. Measured OH time histories were modeled using comprehensive n-butanol literature mechanisms. It was found that n-butanol unimolecular decomposition rate constants commonly used in chemical kinetic models, as well as those determined from theoretical studies, are unable to predict the data presented herein. Therefore, an improved high-temperature mechanism is presented here, which incorporates recently reported rate constants measured in a single pulse shock tube [C. M. Rosado-Reyes and W. Tsang, J. Phys. Chem. A 2012, 116, 9825-9831]. Discussions are presented on the validity of the proposed mechanism against other literature shock tube experiments. © 2013 American Chemical Society.Citation
Vasu, S. S., & Sarathy, S. M. (2013). On the High-Temperature Combustion of n-Butanol: Shock Tube Data and an Improved Kinetic Model. Energy & Fuels, 27(11), 7072–7080. doi:10.1021/ef401406zSponsors
S.S.V.would like to acknowledge the financial support provided by the University of Central Florida, Mechanical and Aerospace Department and the Office of Research and Commercialization. The work at KAUST was funded by the Clean Combustion Research Center. The authors would like to thank Prof. Ronald Hanson at Stanford University for access to previously unpublished OH data.Publisher
American Chemical Society (ACS)Journal
Energy & Fuelsae974a485f413a2113503eed53cd6c53
10.1021/ef401406z