Technip Energies has been awarded a contract by TotalEnergies for the Marsa LNG bunkering project located in Sohar, Oman. The Marsa LNG project is an integrated complex developed by TotalEnergies (80%) and state energy holding company OQ (20%). The contract covers engineering, procurement, and construction (EPC) of a natural gas liquefaction train with liquefied natural gas (LNG) production capacity of 1 MTPA.
Natural gas will be delivered by the OQ Gas Network (OQGN) at an expected rate of 150 MMscf/d (4.2 × 106 m3/d) to the LNG plant inlet. The flow rate will be 158 MMscf/d (4.4 × 106 m3/d) considering the LNG plant availability. The feed gas will be pre-treated upstream of the LNG plant site and will be delivered to the LNG plant by OQGN’s existing pipeline network. Additional pre-treatment will be required at the LNG plant to further refine the gas for export. Upon arrival to the inlet facility, the feed gas will flow through an inlet facility made of a series of filters to remove black powder and a let-down unit that will reduce the gas pressure and temperature.
Filtered feed gas will flow through a mercury-removal unit to prevent mercury amalgam corrosion (or liquid metal embrittlement) of aluminum equipment in the cryogenic sections of the plant. Carbon dioxide will be removed by an acid gas removal unit through an absorption process using an amine solution. Water will be removed to prevent hydrate and ice formation in the cryogenic section using a dehydration unit with regenerative molecular sieve beads. Heavy hydrocarbons and benzene that can freeze in the cryogenic section will be removed to produce condensate (a byproduct) that will be exported through the condensate export pipeline.
Expected to begin production in Q1 2028, LNG will be sent to an onshore storage tank before being loaded to bunkering vessels or LNG carriers via a dedicated LNG marine terminal. All vapors generated during loading system will be returned to the boil-off gas recovery system of the facility, compressed, and sent back to the LNG train.
The plant will use electric-driven motors and be powered by renewable electricity from a dedicated 300-MW photovoltaic solar plant that will be built to cover 100% of the annual power consumption of the LNG plant.
“The world’s net-zero trajectory will require LNG as a critical source of energy, while addressing emissions abatement,” said Arnaud Pieton, chief executive officer of Technip Energies. “TotalEnergies and OQ’s progressive Marsa LNG project is an example of how we can decarbonize the LNG value chain by powering its production with renewable energy and using it as a marine fuel to reduce emissions linked to maritime transportation.”
