High pressure flow reactor for in situ X-ray absorption spectroscopy of catalysts in gas-liquid mixtures—A case study on gas and liquid phase activation of a Co-Mo/Al 2 O 3 hydrodesulfurization catalyst

2017 ◽  
Vol 292 ◽  
pp. 51-57 ◽  
Author(s):  
L. van Haandel ◽  
E.J.M. Hensen ◽  
Th. Weber
Keyword(s):  
High Pressure ◽  
Liquid Phase ◽  
Absorption Spectroscopy ◽  
Flow Reactor ◽  
Liquid Mixtures ◽  
Pressure Flow ◽  
X Ray ◽  
X Ray Absorption

Design and operation of a high pressure reaction cell for in situ X-ray absorption spectroscopy

2007 ◽  
Vol 126 (1-2) ◽  
pp. 18-26 ◽  
Author(s):  
Simon R. Bare ◽  
Ning Yang ◽  
Shelly D. Kelly ◽  
George E. Mickelson ◽  
Frank S. Modica
Keyword(s):  
High Pressure ◽  
Absorption Spectroscopy ◽  
Reaction Cell ◽  
X Ray ◽  
High Pressure Reaction ◽  
X Ray Absorption

Design and Operation of an In Situ High Pressure Reaction Cell for X-Ray Absorption Spectroscopy

2007 ◽  
Author(s):  
Simon R. Bare ◽  
N. Yang ◽  
S. D. Kelly ◽  
G. E. Mickelson ◽  
F. S. Modica
Keyword(s):  
High Pressure ◽  
Absorption Spectroscopy ◽  
Reaction Cell ◽  
X Ray ◽  
High Pressure Reaction ◽  
X Ray Absorption

Continuous-flow reactor setup for operando x-ray absorption spectroscopy of high pressure heterogeneous liquid–solid catalytic processes

2021 ◽  
Vol 92 (12) ◽  
pp. 124101
Author(s):  
Benedikt J. Deschner ◽  
Dmitry E. Doronkin ◽  
Thomas L. Sheppard ◽  
Georg Rabsch ◽  
Jan-Dierk Grunwaldt ◽  
...  
Keyword(s):  
High Pressure ◽  
Absorption Spectroscopy ◽  
Continuous Flow ◽  
Flow Reactor ◽  
X Ray ◽  
Continuous Flow Reactor ◽  
Catalytic Processes ◽  
X Ray Absorption

Application of In Situ X-ray Absorption Spectroscopy to Study Dilute Chromium Ions in a Molten Chloride Salt

2019 ◽  
Author(s):  
Jisue Moon ◽  
Carter Abney ◽  
Dmitriy Dolzhnikov ◽  
James M. Kurley ◽  
Kevin A. Beyer ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Local Structure ◽  
Chloride Salt ◽  
X Ray ◽  
Molten Chloride ◽  
Stable Species ◽  
Higher Temperature ◽  
Cr Concentration ◽  
X Ray Absorption

The local structure of dilute CrCl<sub>3</sub> in a molten MgCl<sub>2</sub>:KCl salt was investigated by <i>in situ</i> x-ray absorption spectroscopy (XAS) at temperatures from room temperature to 800<sup>o</sup>C. This constitutes the first experiment where dilute Cr speciation is explored in a molten chloride salt, ostensibly due to the compounding challenges arising from a low Cr concentration in a matrix of heavy absorbers at extreme temperatures. CrCl<sub>3</sub> was confirmed to be the stable species between 200 and 500<sup>o</sup>C, while mobility of metal ions at higher temperature (>700<sup>o</sup>C) prevented confirmation of the local structure.

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