The influence of iron oxide on the oxidation kinetics of synthetic char derived from thermogravimetric analysis and fixed-bed experiments under isothermal and temperature-programmed conditions

Fuel ◽  
2017 ◽  
Vol 201 ◽  
pp. 99-104 ◽  
Author(s):  
Hendrik Düdder ◽  
Katrin Lotz ◽  
Annika Wütscher ◽  
Martin Muhler
Keyword(s):  
Iron Oxide ◽  
Thermogravimetric Analysis ◽  
Oxidation Kinetics ◽  
Fixed Bed ◽  
Temperature Programmed ◽  
Kinetics Of

Oxidation kinetics of ilmenite concentrate by non-isothermal thermogravimetric analysis

2017 ◽  
Vol 24 (7) ◽  
pp. 678-684 ◽  
Author(s):  
Ying-yi Zhang ◽  
Wei Lv ◽  
Xue-wei Lv ◽  
Chen-guang Bai ◽  
Ke-xi Han ◽  
...  
Keyword(s):  
Thermogravimetric Analysis ◽  
Oxidation Kinetics ◽  
Ilmenite Concentrate ◽  
Kinetics Of

Reduction-oxidation kinetics of three different iron oxide phases for CO 2 activation to CO

Fuel ◽  
2017 ◽  
Vol 202 ◽  
pp. 547-555 ◽  
Author(s):  
Min Hye Jeong ◽  
Dong Hyun Lee ◽  
Gui Young Han ◽  
Chae-Ho Shin ◽  
Myoung Kyun Shin ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Oxidation Kinetics ◽  
Oxide Phases ◽  
Kinetics Of

Oxidation Kinetics of Soot on Acicular Mullite Membrane Filter Using Electron Microscopy and Thermogravimetric Analysis

2020 ◽  
Vol 21 (6) ◽  
pp. 1465-1473
Author(s):  
Eakkawut Saenkhumvong ◽  
Preechar Karin ◽  
Chinda Charoenphonphanich ◽  
Naratip Vittayakorn ◽  
Katsunori Hanamura
Keyword(s):  
Electron Microscopy ◽  
Thermogravimetric Analysis ◽  
Oxidation Kinetics ◽  
Membrane Filter ◽  
Acicular Mullite ◽  
Kinetics Of

Impact Of Synthesis Route on the Water Oxidation Kinetics of Hematite Photoanodes

2020 ◽  
Author(s):  
Camilo A. Mesa ◽  
Ludmilla Steier ◽  
Benjamin Moss ◽  
Laia Francàs ◽  
James E. Thorne ◽  
...  
Keyword(s):  
Oxygen Vacancy ◽  
Reaction Kinetics ◽  
Water Oxidation ◽  
Oxidation Kinetics ◽  
Oxidation Reaction ◽  
Charge Accumulation ◽  
Optical Signals ◽  
Current Voltage ◽  
Voltage Performance ◽  
Kinetics Of

<p><i>Operando</i> spectroelectrochemical analysis is used to determine the water oxidation reaction kinetics for hematite photoanodes prepared using four different synthetic procedures. Whilst these photoanodes exhibit very different current / voltage performance, their underlying water oxidation kinetics are found to be almost invariant. Lower photoanode performance was found to correlate with the observation of optical signals indicative of charge accumulation in mid-gap oxygen vacancy states, indicating these states do not contribute directly to water oxidation.</p>

Kinetics of temperature-programmed reactivation of a hydrodesulphurization catalyst

1983 ◽  
Vol 48 (12) ◽  
pp. 3340-3355 ◽  
Author(s):  
Pavel Fott ◽  
Pavel Šebesta
Keyword(s):  
Carbon Dioxide ◽  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Thin Layer ◽  
Kinetic Parameters ◽  
Diffusion Region ◽  
Reaction Heat ◽  
Gaseous Products ◽  
Temperature Programmed ◽  
Kinetics Of

The kinetic parameters of reactivation of a carbonized hydrodesulphurization (HDS) catalyst by air were evaluated from combined thermogravimetric (TG) and differential thermal analysis (DTA) data. In addition, the gaseous products leaving a temperature-programmed reactor with a thin layer of catalyst were analyzed chromatographically. Two exothermic processes were found to take part in the reactivation, and their kinetics were described by 1st order equations. In the first process (180-400 °C), sulphur in Co and Mo sulphides is oxidized to sulphur dioxide; in the second process (300-540 °C), in which the essential portion of heat is produced, the deposited carbon is oxidized to give predominantly carbon dioxide. If the reaction heat is not removed efficiently enough, ignition of the catalyst takes place, which is associated with a transition to the diffusion region. The application of the obtained kinetic parameters to modelling a temperature-programmed reactivation is illustrated on the case of a single particle.

Oxidation Kinetics of Fe(II) in a Eutrophic Swiss Lake

1998 ◽  
Vol 32 (19) ◽  
pp. 2990-2996 ◽  
Author(s):  
Lukas Emmenegger ◽  
D. Whitney King ◽  
Laura Sigg ◽  
Barbara Sulzberger
Keyword(s):  
Oxidation Kinetics ◽  
Swiss Lake ◽  
Kinetics Of

Oxidation Kinetics of Oil Shale Semicokes: Reactivity as a Function of Pyrolysis Temperature and Shale Origin

2013 ◽  
Vol 27 (2) ◽  
pp. 666-672 ◽  
Author(s):  
Jillian L. Goldfarb ◽  
Anthony D’Amico ◽  
Christopher Culin ◽  
Eric M. Suuberg ◽  
Indrek Külaots
Keyword(s):  
Oxidation Kinetics ◽  
Oil Shale ◽  
Pyrolysis Temperature ◽  
Kinetics Of
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