Isotopic exchange in the ethanol synthesis from carbon monoxide + molecular hydrogen. Comments on papers by A. Takeuchi and J. R. Katzer

1984 ◽  
Vol 88 (11) ◽  
pp. 2426-2426 ◽  
Author(s):  
G. Henrici-Olive ◽  
S. Olive
1972 ◽  
Vol 27 (1) ◽  
pp. 41-46 ◽  
Author(s):  
C. v. Sonntag

In the 185 nm photolysis of liquid O2-free isopropanol the following products (quantum yields) are formed: hydrogen (0.75), acetone (0.72), pinacol (0.036), methane (0.046), acetaldehyde (0.04), propane (0.02β), ane (0.0023) and carbon monoxide (0.0015). A detailed reaction scheme is proposed. The major primary processes are the formation of H-atoms by homolytic scission of the O —H-bond (61 — 69%), elimination of molecular hydrogen (21%) and molecular methane (5%). Φ(Η2) is strongly decreased by adding water which does not absorb an appreciable portion of the 185 nm light in the mixtures down to 1 mole/l isopropanol (Φ(Η2) =0.21). In contrast to the strong effect of water there is no effect on Φ(Η2) by diluting isopropanol with n-hexane. From experiments with isopropanol-OD and 2-deutero-isopropanol it is tentatively concluded that H-atoms stemming from the O—H-group of the alcohol are to about 65% the precursors of the hydrogen in these mixtures.


1992 ◽  
Vol 12 (1-3) ◽  
pp. 87-96 ◽  
Author(s):  
Haiyou Wang ◽  
Jinpo Liu ◽  
Jinkung Fu ◽  
Huilin Wan ◽  
Khirui Tsai

2014 ◽  
Vol 164 ◽  
pp. 75-83 ◽  
Author(s):  
Shinsuke Kawagucci ◽  
Taku Narita ◽  
Hajime Obata ◽  
Hiroshi Ogawa ◽  
Toshitaka Gamo

Sign in / Sign up

Export Citation Format

Share Document