A Nonpremixed Annular Jet Vortex Chamber Reactor for Methane Pyrolysis under Oxygen-Enriched Conditions

2021 ◽  
Author(s):  
Lei Chen ◽  
Santosh Shanbhogue ◽  
Sreekanth Pannala ◽  
Vladimir Shtern ◽  
Ahmed Ghoniem ◽  
...  
Keyword(s):  
Vortex Chamber ◽  
Annular Jet ◽  
Methane Pyrolysis

scholarly journals Asymmetric vortex shedding in the wake of an abruptly expanding annular jet

2021 ◽  
Vol 62 (4) ◽  
Author(s):  
Maarten Vanierschot ◽  
Mustafa Percin ◽  
Bas W. van Oudheusden
Keyword(s):  
Vortex Shedding ◽  
Asymmetric Vortex ◽  
Annular Jet

C-Zero raises funds for methane pyrolysis

2021 ◽  
Vol 99 (6) ◽  
pp. 18-18
Author(s):  
Melody M. Bomgardner
Keyword(s):  
Methane Pyrolysis

scholarly journals Numerical Study toward Optimization of Spray Drying in a Novel Radial Multizone Dryer

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1233
Author(s):  
Umair Jamil Ur Rahman ◽  
Artur Krzysztof Pozarlik ◽  
Thomas Tourneur ◽  
Axel de Broqueville ◽  
Juray De Wilde ◽  
...  
Keyword(s):  
Spray Drying ◽  
Droplet Size ◽  
Separation Efficiency ◽  
Numerical Study ◽  
Three Dimensional ◽  
Droplet Size Distribution ◽  
Vortex Chamber ◽  
Temperature Pattern ◽  
Multiphase Model ◽  
Drying Technology

In this paper, an intensified spray-drying process in a novel Radial Multizone Dryer (RMD) is analyzed by means of CFD. A three-dimensional Eulerian–Lagrangian multiphase model is applied to investigate the effect of solids outlet location, relative hot/cold airflow ratio, and droplet size on heat and mass transfer characteristics, G-acceleration, residence time, and separation efficiency of the product. The results indicate that the temperature pattern in the dryer is dependent on the solids outlet location. A stable, symmetric spray behavior with maximum evaporation in the hot zone is observed when the solids outlet is placed at the periphery of the vortex chamber. The maximum product separation efficiency (85 wt %) is obtained by applying high G-acceleration (at relative hot/cold ratio of 0.75) and narrow droplet size distribution (45–70 µm). The separation of different sized particles with distinct drying times is also observed. Smaller particles (<32 µm) leave the reactor via the gas outlet, while the majority of big particles leave it via the solids outlet, thus depicting in situ particle separation. The results revealed the feasibility and benefits of a multizone drying operation and that the RMD can be an attractive solution for spray drying technology.

Co-Mn catalysts for H2 production via methane pyrolysis in molten salts

2021 ◽  
Vol 414 ◽  
pp. 128730
Author(s):  
Clemens F. Patzschke ◽  
Brett Parkinson ◽  
Joshua J. Willis ◽  
Partha Nandi ◽  
Alyssa M. Love ◽  
...  
Keyword(s):  
Molten Salts ◽  
H2 Production ◽  
Methane Pyrolysis
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