QP processes associated gas at its three NGL plants in Umm Said, which produce propane, butane and NGL for export and as feedstock to industries and fuel for water desalination plants and power stations.
NGL-3 came on stream several years later to fill the gap in Qatar's need of ethane as feedstock for the ethylene complex at Umm Said and methane as feedstock for the fertiliser complex at the same industrial zone, as well as to produce LPG and NGL for export.
Related fractionators at Umm Said are inter-connected, so that each one can process liquids either from the onshore or from offshore system.
Mixed liquids are brought ashore through an 85 km underwater pipeline and carried to NGL-2 at Umm Said.
NGL-4 is being built at Umm Said to process gas and condensates from the second phase of Dukhan's Arab D gas recycling system and from the Arab C gas recycling system at the offshore field of Bul Hanine.