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Ingevity Corporation - Adsorbed Natural Gas for Flare Gas Recovery and Utilization 

Ingevity Corporation is advancing the use of adsorbed natural gas (ANG) as an economical and scalable alternative fuel source that reduces greenhouse gas emissions. ANG is an enhanced version of compressed natural gas (CNG) that uses activated carbon to allow the natural gas to be stored at much lower pressures than CNG, which enables ANG to be a practical solution in a variety of applications. For example, ANG provides a cost-effective solution for powering light-duty vehicles. Ingevity is exploring solutions and collaborating with industry to achieve social, economic, and environmental sustainability by developing products and processes to identify and solve greenhouse gas emission issues across the globe.

Ingevity anticipates that ANG technology will significantly increase the capacity to store natural gas and reduce methane emissions. Ingevity is partnering with a range of organizations to examine the effectiveness of their methane mitigation technology including:

  • In 2013, DNV-GL, a company based out of the United Kingdom, completed a comprehensive, full-scale demonstration of ANG technology. The demonstration quantified and compared the carbon footprint of three approaches, resulting in the following findings:
    Treatment of Gas Emissions (CO2e) Footprint
    ANG 3 kg 0.1%
    CNG 44 kg 0.7%
    Flaring 1,504 kg 22.9%
    Venting 6,574 kg 100%
  • Gas Technology Institute (GTI), based out of Des Plaines, IL, conducted an ANG evaluation project and found:
    • “Bulk ANG storage, combined with a gas compressor, gas conditioning, and/or a pressure regulating station could provide an economically attractive alternative to installation of new pipe to meet the peak demands of a system, provide emergency backup for increased resiliency, or offer a means for eliminating venting of gas when taking gas mains out of service for replacement or repairs."
  • An oil and gas producer based out of Europe is currently conducting a field test of ANG recovery and storage. The study involves the use of more than 10 metric tons of activated carbon to generate ANG to fuel an electric generator that supplies electricity to the grid.