CNG / LNG

The predominant component of CNG is methane. Natural gas is obtained from gas wells or in combination with crude oil production. It also contains hydrocarbons such as ethane and propane and smaller amounts of other gases such as nitrogen, helium, carbon dioxide, sulphur compounds and water vapor. CNG applications include mobile (On Vehicle) and infrastructure (Fueling Station) and provide valuable benefits, including:

• Up to a 25 percent reduction in carbon dioxide output, 75 percent reduction in carbon monoxide and 100 percent reduction in particulate emissions
  
  
• Increased safety due to a low risk of flammability
  
  
• A comprehensive delivery structure consisting of existing underground natural gas lines

LNG is a cryogenic state of natural gas (primarily methane with small amounts of other hydrocarbons) and is used as a means to store natural gas, as well as an onboard fuel option. The temperature required to condense natural gas depends on its precise composition, but it is typically between -120 and -170°C (-184 and -274°F).

LNG is suitable for heavy-duty vehicles, locomotives and marine vessels that require longer ranges because liquid is more dense than gas (CNG) and, therefore, more energy can be stored by volume in a given tank. However, because LNG is stored at extremely cold temperatures and requires ultra fine filtration, it is important to choose components that accommodate these requirements.