The present thesis work has been carried out in partnership with the "Technological Innovation" unit of the Italgas Reti SpA, the main company in the gas distribution sector in Italy and the third in Europe. One of the goals of great importance, that this unit carries out inside this company, is to direct investments towards the use of innovative low-emission technologies, which is undoubtedly one of the most relevant issues nowadays. In particular, this work was developed after the result of accurate energy analysis done by Italgas, using data collected over time, that increased awareness of the fact that the most important impact on energy consumption in the gas distribution processes derives from the combustion of gas inside an IPRM (Withdrawal, Reduction and Measurement sites) for preheating purpose.