| Title | Multi-Wavelength Speciation of High-Temperature 1 1-Butene Pyrolysis |
|---|---|
| Record ID | 81702 |
| Personal Name Creator |
Pinkowski, Nicolas H; Cassady, Sean J; Davidson, David F; Hanson, Ronald K |
| Corporate Creator | United States. Department of Transportation. Federal Aviation Administration. Center of Excellence for Alternative Jet Fuels and Environment; Stanford University |
| Corporate Contributor |
United States. Department of Transportation. Federal Aviation Administration. Office of Environment and Energy |
| Publisher | Elsevier |
| Publication Date | 20190200 |
| Language | English |
| Abstract | Species time-history measurements provide important kinetics targets for the development and validation of detailed reaction models. Here, a multi-wavelength, multi-species laser absorption strategy is demonstrated that provides high-bandwidth species time-histories during 1-butene pyrolysis behind reflected shock waves. Measured shock tube absorbance traces at nine wavelengths were used to resolve nine species mole fractions in the pyrolysis of 5% 1-butene in argon at 1300 K, 1.8 atm. In addition to existing sensors for 1-butene, methane, ethylene, 1,3-butadiene, propene, allene, benzene, and cyclopentadiene, a new laser absorption sensor for ethane at 3.3519 um was developed by measuring cross-sections of ethane and of expected major interferers. Additional measurements to complete a square absorption cross-section matrix were also performed that enabled the simultaneous solution of species mole fractions from absorbance time-histories under appropriate physical system constraints. Measured time-histories of the nine product species were also compared with existing flow-reactor-based kinetic mechanisms. The demonstrated method has further application potential in the speciation of larger, more complex fuels. |
| Public Note | This manuscript is made available under the Elsevier user license https://www.elsevier.com/open-access/userlicense/1.0 |
| Rosap ID | dot:56941 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/56941 |
| TRT Terms | Hydrocarbon based materials; High temperature; Absorption spectroscopy; Laser materials; Spectroscopy; Cross sections; Mechanical shock |
| General Subjects | 1-butene; hydrocarbon pyrolysis; time-resolved; laser absorption spectroscopy; ethane diagnostic; shock tubes; ASCENT |
| Geographical Coverage |
United States |
| Contract Number | 13-C-AFJE-SU-015, 17 |
| Report Number | j.fuel.2019.01.154 |
| Resource type | Manuscript |
| URL | https://ntlrepository.blob.core.windows.net/lib/81000/81700/81702/25-j.fuel.2019.01.154_pub_Multi-wavelength.pdf |
| Format | |
| Database | NTL Digital Repository |