Sillaro plant is a gas production and treatment facilities located in Italy, Emilia Romagna, close to Bologna. SEMAT (Gruppo Trombini) has been selected by NorthSun Italia (Po Valley Energy) as EPCI Contractor for the development of plants surface facilities. Within such project, DG Impianti Industriali S.p.A. fully developed the process, safety, civil, mechanical, electrical and instrumentation engineering, as well as the design and manufacturing of main equipments for natural gas treatment. Gas dehydration column was built in DG Taranto facilities and installed in filed in 2009.