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Author
Lenhert, D. B. | Manzello, S. L.
Title
Effects of Benzene and Naphthalene Addition on Soot Inception in a Well-Stirred Reactor/Plug Flow Reactor.
Coporate
Praxair Inc., Tonawanda, NY National Institute of Standards and Technology, Gaithersburg, MD
Report
Volume 32; Part 1,
Book or Conf
Combustion Institute, Symposium (International) on Combustion, 32nd. Proceedings. Volume 32. Part 1. August 3-8, 2008, Combustion Institute, Pittsburgh, PA, Montreal, Canada, Dagaut, P.; Sick, V., Editors, 657-664 p., 2009
Keywords
nuclear reactors | benzene | naphthalene | soot | injection | probes | transmission | experiments | dilution | additives | mobility | soot density | size distribution | polycyclic aromatic hydrocarbons | gas chromatography | mass spectrometry
Identifiers
Transmission Electron Microscopy (TEM); integrated results for the total number concentration and the mass concentration based on soot density; soot sampling and dilution; nano-differential mobility analyzer; additive injection probe; soot size distribution measurements; well-stirred reactor (WSR); plug flow reactor (PFR); nano-differential mobility analyzer (nano-DMA)
Abstract
A well-stirred reactor (WSR) followed by a plug flow reactor (PFR) is being used to study soot inception. Soot size distributions were measured using two different dilution probes followed by a nano-differential mobility analyzer (nano-DMA). One of the dilution probes was developed for the PFR section, while the second probe was specifically developed for use in the WSR section. Results are presented on the effect of residence time on the soot size distributions obtained for fixed dilution ratio and equivalence ratio. In addition, a technique to inject aromatics and PAH species in the transition region between the WSR and PFR was developed. Results are presented on the effect of benzene and naphthalene on the soot size distributions obtained for differing seeding concentrations and residence times. The results demonstrate for the first time the sensitivity of the soot particle size distribution to the seeding of aromatic species in a WSR/PFR.