Investigation of Hydrogen Isotope Exchange Reaction Rate in Mixed Gas (H2 and D2) at Pressure up to 200 MPa Using Raman Spectroscopy

2015 ◽  
Keyword(s):  
Raman Spectroscopy ◽  
Exchange Reaction ◽  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Reaction Rate ◽  
Mixed Gas ◽  
Isotope Exchange Reaction ◽  
Hydrogen Isotope Exchange

Hydrogen isotope exchange between D2 and H2O catalyzed by platinum plate

1989 ◽  
Vol 67 (5) ◽  
pp. 857-861 ◽  
Author(s):  
Shin-Ichi Miyamoto ◽  
Tetsuo Sakka ◽  
Matae Iwasaki
Keyword(s):  
Kinetic Model ◽  
Exchange Reaction ◽  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Reaction Rate ◽  
Hydrogen Adsorption ◽  
Platinum Catalyst ◽  
Isotope Exchange Reaction ◽  
Hydrogen Isotope Exchange ◽  
Supported Platinum

The reaction rate of hydrogen isotope exchange between D2 and H2O catalyzed by platinum plate is studied. The exchange reaction is described with the kinetic model which is the modification of that for the exchange reaction catalyzed by alumina-supported platinum catalyst. For the comparison of experimental results with this model relative amount of the number of sites for hydrogen adsorption was estimated from the initial rate of hydrogen isotope exchange between H2 and D2 on the same surface. The results show that the kinetic model is applicable for the plate catalyst if the number of the sites for hydrogen absorption, which is very sensitive to the surface state of the catalyst, was estimated not from the macroscopic surface area but from our scheme. Keywords: hydrogen isotope exchange reaction, platinum plate as catalyst.

Practically convenient and industrially-aligned methods for iridium-catalysed hydrogen isotope exchange processes

2014 ◽  
Vol 12 (22) ◽  
pp. 3598-3603 ◽  
Author(s):  
A. R. Cochrane ◽  
C. Idziak ◽  
W. J. Kerr ◽  
B. Mondal ◽  
L. C. Paterson ◽  
...  
Keyword(s):  
Exchange Reaction ◽  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Isotope Exchange Reaction ◽  
Hydrogen Isotope Exchange ◽  
Chlorinated Solvent ◽  
Exchange Processes ◽  
Alternative Solvents ◽  
Reaction Media

The use of alternative solvents in the iridium-catalysed hydrogen isotope exchange reaction with developing phosphine/NHC Ir(i) complexes has identified reaction media which are more widely applicable than the commonly employed chlorinated solvent, dichloromethane.

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