Plasma-chemical methane conversion under nonthermal and thermal conditions: An attempt toward uniform kinetic modeling

1985 ◽  
Vol 5 (3) ◽  
pp. 283-291 ◽  
Author(s):  
H. Drost ◽  
J. Rutkowsky ◽  
R. Mach ◽  
H. -D. Klotz ◽  
G. Schulz
Keyword(s):  
Kinetic Modeling ◽  
Methane Conversion ◽  
Thermal Conditions ◽  
Plasma Chemical

Fullerene-Based Catalysts for Methane Activation

1994 ◽  
Vol 349 ◽  
Author(s):  
Hui-Jung Wu ◽  
Albert S. Hirschon ◽  
Ripudaman Malhotra ◽  
Robert B. Wilson
Keyword(s):  
Catalytic Activity ◽  
Aromatic Hydrocarbons ◽  
Methane Conversion ◽  
Thermal Conditions ◽  
Methane Activation ◽  
Minimal Amount ◽  
Fullerene Soot ◽  
Conversion Of Methane ◽  
Higher Hydrocarbons

ABSTRACTWe investigated fullerene based catalysts for the conversion of methane into higher hydrocarbons. Fullerene soot, CO2 activated soot, and extracted soot as well as a Norit-A carbon were examined as catalysts for methane activation. The soot was found to easily activate the C-H bond of methane, allowing methane conversion at lower temperatures (lower by 250°C) than found under purely thermal conditions. Furthermore, soot catalysis appears to produce a minimal amount of aromatic hydrocarbons. Extracted soot was found to have a lower selectivity for C2 hydrocarbons than the non-extracted soot, and the CO2 activation of the soot did not appear to dramatically alter the catalytic activity.

Kinetic modeling of plasma methane conversion in a dielectric barrier discharge

2008 ◽  
Vol 89 (2) ◽  
pp. 214-219 ◽  
Author(s):  
Antonius Indarto ◽  
Nowarat Coowanitwong ◽  
Jae-Wook Choi ◽  
Hwaung Lee ◽  
Hyung Keun Song
Keyword(s):  
Dielectric Barrier Discharge ◽  
Kinetic Modeling ◽  
Methane Conversion ◽  
Barrier Discharge ◽  
Dielectric Barrier

C–H Bond Activation ofMethane with Gaseous [(CH3)Pt(L)]+ Complexes (L = Pyridine, Bipyridine, and Phenanthroline)

2007 ◽  
Vol 62 (3) ◽  
pp. 309-313 ◽  
Author(s):  
Burkhard Butschke ◽  
Maria Schlangen ◽  
Helmut Schwarz ◽  
Detlef Schröder
Keyword(s):  
Experimental Data ◽  
Detailed Analysis ◽  
Electrospray Ionization ◽  
Kinetic Modeling ◽  
Bond Activation ◽  
Oxidative Addition ◽  
Thermal Conditions ◽  
Nitrogen Ligand ◽  
Insight Into

Electrospray ionization of solutions of dimethyl(1,5-cyclooctadiene)platinum(II) in methanol with traces of nitrogen-containing ligands L provides gaseous complexes of the type [(CH3)Pt(L)]+ with L = pyridine (py), 2,2′-bipyridine (bipy), and 1,10-phenanthroline (phen). These [(CH3)Pt(L)]+ cations are capable of activating the C-H bond in methane as shown by H/D exchange when using CD4 as a neutral reactant. Most reactive is the complex [(CH3)Pt(py)]+ bearing a monodentate nitrogen ligand. The cationic complexes [(CH3)Pt(bipy)]+ and [(CH3)Pt(phen)]+ also bring about activation of methane, though at a lower rate, whereas the bipyridine complex [(CH3)Pt(py)2]+ does not react with methane at thermal conditions. A detailed analysis of the experimental data by means of kinetic modeling provides insight into the underlying mechanistic steps, but a distinction whether the reaction occurs as σ bond metathesis or via an oxidative addition cannot be made on the basis of the experimental data available.

Allene oxidation in jet-stirred reactor : a kinetic modeling study

1990 ◽  
Vol 87 ◽  
pp. 1159-1172 ◽  
Author(s):  
P Dagaut ◽  
M Cathonnet ◽  
B Aboussi ◽  
JC Boettner
Keyword(s):  
Kinetic Modeling ◽  
Stirred Reactor ◽  
Allene Oxidation ◽  
Modeling Study

Research and Modelling on Electrical and Thermal Mode of LEDs Operation in the Luminaire

2018 ◽  
pp. 155-162 ◽  
Author(s):  
Sergei S. Kapitonov ◽  
Anastasia V. Kapitonova ◽  
Sergei Yu. Grigorovich ◽  
Sergei A. Medvedev ◽  
Taher Sobhy
Keyword(s):  
Thermal Conditions ◽  
Operating Mode ◽  
Thermal Processes ◽  
Thermal Mode ◽  
Crystal Temperature ◽  
Premature Failure ◽  
Model Based

In the article, the electrical and thermal processes in the LED lamp with varied parameters are investigated. Voltage and current measurements on all LEDs of the luminaire are carried out in the nominal operating mode. The power allocated to each LED is determined. The calculation of the LED crystal temperature was carried out using the developed thermal LED model based on the results of the measurements and by using “Multisim” program. It has been established that the temperature of the crystals of individual LEDs in the luminaire differ significantly, which leads to unfavourable thermal conditions for them and an increased likelihood of premature failure.

Estimation and Kinetic Modeling of Human Arm using Wearable Robot Arm

2016 ◽  
Vol 136 (4) ◽  
pp. 254-262 ◽  
Author(s):  
Takahiro Yamazaki ◽  
Sho Sakaino ◽  
Toshiaki Tsuji
Keyword(s):  
Kinetic Modeling ◽  
Robot Arm ◽  
Wearable Robot ◽  
Human Arm
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