Activity Hysteresis during Cyclic Temperature-Programmed Reactions in the Partial Oxidation of Acrolein to Acrylic Acid

2017 ◽  
Vol 40 (11) ◽  
pp. 2084-2095 ◽  
Author(s):  
Stefan Knoche ◽  
Maurice Heid ◽  
Niklas Gora ◽  
Dominik Ohlig ◽  
Alfons Drochner ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Partial Oxidation ◽  
Cyclic Temperature ◽  
Temperature Programmed

Single-Crystalline-Phase Mo3VOx: An Efficient Catalyst for the Partial Oxidation of Acrolein to Acrylic Acid

ChemCatChem ◽  
2013 ◽  
Vol 5 (10) ◽  
pp. 2869-2873 ◽  
Author(s):  
Chen Chen ◽  
Nakatani Kosuke ◽  
Toru Murayama ◽  
Wataru Ueda
Keyword(s):  
Acrylic Acid ◽  
Partial Oxidation ◽  
Crystalline Phase ◽  
Efficient Catalyst ◽  
Single Crystalline

The Reducibility and Cluster Size of Vanadium Oxide as Potential Descriptors of Its Catalytic Activity in the Partial Oxidation of Ethanol

2017 ◽  
Vol 16 (4) ◽  
Author(s):  
Van D. N Nguyen ◽  
Dongmin Yun ◽  
Nataphan Sakulchaicharoen ◽  
José E Herrera
Keyword(s):  
Catalytic Activity ◽  
Vanadium Oxide ◽  
Partial Oxidation ◽  
Cluster Size ◽  
Hydrogen Abstraction ◽  
Domain Size ◽  
Optical Absorption Spectroscopy ◽  
State Approximation ◽  
Temperature Programmed ◽  
Oxidation Of Ethanol

Abstract A series of vanadium oxide (VOx) catalysts prepared using three different supports were tested for the partial oxidation of ethanol to acetaldehyde. Optical absorption spectroscopy and Temperature Programmed reductions experiments indicate that the reducibility and average domain size of the vanadia clusters anchored on the supports are very sensitive to vanadia loading. The catalytic activity results were modeled using a pseudo steady state approximation using the ethanol hydrogen abstraction step as rate limiting. The results obtained strongly suggest that catalytic activity can be correlated to both average vanadia cluster size and the ability of vanadia to uptake hydrogen during TPR experiments.

scholarly journals Studies of Nickel/Samarium-Doped Ceria for Catalytic Partial Oxidation of Methane and Effect of Oxygen Vacancy

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 731
Author(s):  
Andrew C. Chien ◽  
Nicole J. Ye ◽  
Chao-Wei Huang ◽  
I-Hsiang Tseng
Keyword(s):  
Catalytic Activity ◽  
Partial Oxidation ◽  
Partial Oxidation Of Methane ◽  
Catalytic Partial Oxidation ◽  
Doped Ceria ◽  
Syngas Production ◽  
Oxidation Of Methane ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Temperature Programmed

We investigated the performance of nickel/samarium-doped ceria (Ni/SDC) nanocatalysts on the catalytic partial oxidation of methane (CPOM). Studies of temperature-programmed surface reaction and reduction reveal that catalytic activity is determined by a synergistic effect produced by Ni metals and metal-support interaction. Catalytic activity was more dependent on the Ni content below 600 °C, while there is not much difference for all catalysts at high temperatures. The catalyst exhibiting high activities toward syngas production (i.e., a CH4 conversion >90% at 700 °C) requires a medium Ni-SDC interaction with an Sm/Ce ratio of about 1/9 to 2/8. This is accounted for by optimum oxygen vacancies and adequate ion diffusivity in the SDCs which, as reported, also display the highest ion conductivity for fuel cell applications.

scholarly journals Heterogeneously catalysed partial oxidation of acrolein to acrylic acid—structure, function and dynamics of the V–Mo–W mixed oxides

2007 ◽  
Vol 9 (27) ◽  
pp. 3577-3589 ◽  
Author(s):  
Philip Kampe ◽  
Lars Giebeler ◽  
Dominik Samuelis ◽  
Jan Kunert ◽  
Alfons Drochner ◽  
...  
Keyword(s):  
Acrylic Acid ◽  
Structure Function ◽  
Partial Oxidation ◽  
Mixed Oxides ◽  
Acid Structure

Periodic operation studies on the partial oxidation of propylene to acrolein and acrylic acid

1992 ◽  
Vol 47 (9-11) ◽  
pp. 2885-2890 ◽  
Author(s):  
Y.A. Saleh-Alhamed ◽  
R.R. Hudgins ◽  
P.L. Silveston
Keyword(s):  
Acrylic Acid ◽  
Partial Oxidation ◽  
Periodic Operation

Partial oxidation of d -xylose to maleic anhydride and acrylic acid over vanadyl pyrophosphate

2014 ◽  
Vol 71 ◽  
pp. 285-293 ◽  
Author(s):  
Touraj Ghaznavi ◽  
Cristian Neagoe ◽  
Gregory S. Patience
Keyword(s):  
Maleic Anhydride ◽  
Acrylic Acid ◽  
Partial Oxidation ◽  
Vanadyl Pyrophosphate

An IGC Study of Pd/SDB Catalysts for Partial Oxidation of Propylene to Acrylic Acid

2000 ◽  
Vol 191 (1) ◽  
pp. 86-92 ◽  
Author(s):  
Jinhai Xie ◽  
Qinglin Zhang ◽  
Karl T. Chuang
Keyword(s):  
Acrylic Acid ◽  
Partial Oxidation
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