Carbon Nanoparticle Production by Inductively Coupled Thermal Plasmas: Controlling the Thermal History of Particle Nucleation |
| |
Authors: | Ramona Pristavita Norma-Yadira Mendoza-Gonzalez Jean-Luc Meunier Dimitrios Berk |
| |
Institution: | (1) Plasma Technology Research Centre (CRTP), Department of Chemical Engineering, McGill University, Wong Building, 3610 University St., Montreal, QC, H3A 2B2, Canada |
| |
Abstract: | The process control for reproducibility, uniformity, and achievement of desired structures for carbon black generated in thermal
plasma devices is studied in this paper through modeling, and correlated with experimental results. A numerical simulation
of the flow and energy fields, stream function lines and the quench rates of the plasma gas in a conical shape reactor at
different pressures was made. An argon plasma is used with highly diluted methane (0.6–7%) as the carbon precursor. The quench
rates were studied in order to observe the flow development and hence the thermal history of particle nucleation. Three pressure
cases of 20.7, 55.2 and 101.3 kPa and two plasma powers cases of 10 and 20 kW were studied. The modeling results enabled carbon
nanoflakes production in the experimental tests performed on an inductively coupled thermal plasma system. Results indicate
a robust process control enabling very little particle morphology variation over this wide range of reactor pressure values
and varying plasma power, and a very high reproducibility of the particle morphologies obtained. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|