(1) Some theoretical considerations with regard to the hydrogenation and polymerisation of acetylene have been made. (2) The reaction has been studied in liquid phase with such catalysts as nickel, cobalt, palladium, and copper. (3) The effect of high tension discharge has been studied with and without catalyst. (4) It has been found that high tension discharge not only accelerates the reaction, but also changes the nature of the reaction.
(1) The possibility of polymerisation reaction of acetylene with a good yield by use of the thermal diffusion column as reaction vessel has been discussed theoretically. (2) The polymerisation of acetylene has been carried out with tungsten wire as heating filament at 700°C–1000°C. (3) The experimental results have shown that acetylene is converted into liquid hydrocarbons almost perfectly, and that the amount of hydrogen, methane, and ethylene are small in the resulting gas, and moreover the deposition of carbon is scarcely observed.