Technologies & operational efficiencies

Lowering emissions with technology

Various technologies are being developed to lower emissions along the LNG value chain. Some examples below.

Using artificial intelligence
to reduce emissions

Shell used Al to modify operations to an existing LNG plant to reduce annual emissions by ~130,000 tonnes for a single train of process units, when operating at full capacity.

Recovering boil-off gas

Used in LNG carriers and at LNG terminals, boil off gas (BOG) Reliquefaction technology increases efficiencies and helps reduce emissions. Technology group Wärtsilä is working with various LNG industry stakeholders for adoption of the technology.

Hydrogen-powered gas turbines

GE Gas Power and Shell Global Solutions are collaborating to develop 100% hydrogen powered gas turbine technology for LNG production, without the use of diluent.

CCS with LNG production

241 MTPA of proposed LNG projects to date include CCS uptake with 77 MTPA of LNG capacity currently under-construction / FID.

Harnessing cold energy

Utilising cold energy from regassification of LNG can be used to generate power. Shipping company MOL and shipbuilder Daewoo Shipbuilding & Marine Engineering have tested a cryo-powered regasification system for floating storage regas unit (FSRU)s which will help reduce an FSRU's fuel consumption and emissions.

Electrification in liquefaction

Electrification can help with reduction of site combustion emissions. For example, GE's electric solution for refrigerant compression through electric motor driven compression technology is an alternative process to mechanically driven devices powered by fossil fuels, that can help reduce emissions from LNG production.

LNG carriers with carbon capture

A TotalEnergies-owned LNG carrier - also fueled by LNG - had a ship-based carbon capture (SBCC) technology prototype installed. In the trial phase the project intends to capture ten metric tons of carbon dioxide onboard the LNG carrier over 3000 hours.