As it was deduced from the experimental results about the adsorption of C
2H
2, C
2H
4, and H
2M on V
2O
3, that this oxide-catalyst might be adequate to the partial hydrogenation of C
2H
2, the study on this subject was undertaken.
Examining efficacies of a-Al
2O
3, 7-Al
2O
3, pumice, Kieselguhr and Cr
2O
3 as carrier, ft*1 and of Ni, Fe
2 (504)
3, MoO, etc.as promoter, it was found that V
2O
3+1/100 Ni+2 sintered r-Al
2O
3 was the most excellent catalyst. By this catalyst C
2H
2 is hydrogenated more than 78% to C
2H
4 at 260°C, and this activity is so much duarable as C
2H
2 react more than 95% and the concentration of C2H4 in the reacted gas is no less than 20% after 115 hrs from the beginning.
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