The basic features of purification of the butylene-butadiene fraction for the removal of acetylene hydrocarbons by catalytic hydrogenation in industrial reactors have been studied. It has been shown that the use of gas distributor nozzles to deliver hydrogen with a flux spread of no more than 10% makes it possible to reduce butadiene losses to 1.2 wt % and to decrease the hydrogen/(acetylene hydrocarbons) molar ratio from 6.8 to 3.8.