Study of a quench device for synthesis and hydrolysis of Zn nanoparticles: Modeling and experiments

Aiman Alshare, Tareq Abu Hamed, Marc Brülhart, Luke Venstrom, Jane H Davidson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The synthesis and hydrolysis of zinc nanoparticles are carried out in a tubular reactor. A key component of the reactor is a coaxial jet quench device. Three co-axial and multi-inlet confined jets mix Zn(g), steam and argon to produce and hydrolyze zinc nanoparticles. The performance of the quench device is assessed with computational fluid dynamic modeling and measurements of hydrogen conversion and particle size and composition. Numerical data elucidate the impact of varying jet flow rates on temperature and velocity distributions within the reactor. Experiments produce hydrogen conversions of 61 to 79 %. Particle deposition on sections of the reactor surface above 650 K favors hydrolysis. Residence time for in-flight particles is less than one second and these particles are partially hydrolyzed.

Original languageEnglish (US)
Title of host publication2008 Proceedings of the 2nd International Conference on Energy Sustainability, ES 2008
Pages345-353
Number of pages9
Volume2
StatePublished - Oct 19 2009
Event2008 2nd International Conference on Energy Sustainability, ES 2008 - Jacksonville, FL, United States
Duration: Aug 10 2008Aug 14 2008

Other

Other2008 2nd International Conference on Energy Sustainability, ES 2008
CountryUnited States
CityJacksonville, FL
Period8/10/088/14/08

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