For the purpose of intensifying the industrial process of pyrolysis gasoline it is suggested to perform it with additional recycling of all unreacted ethane or propane into the gasoline stove and determine the effect of this feedback to the yield of the end products (ethylene and propylene). The comparison of outputs in bote cases, as well as with such at industrial implementation of the process without recycling of the mentioned hydrocarbons has been made. The plant profit from the use of the proposed method has been estimated.