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Associated Gas Recovery Integrated with Solar Power for Produced Water Treatment: Techno-Economic and Environmental Impact Analyses

Author

Listed:
  • Daniel H. Chen

    (Dan F. Smith Department of Chemical and Biomolecular Engineering, Lamar University, P.O. Box 10053, Beaumont, TX 77710, USA)

  • Fuad Samier Aziz

    (Dan F. Smith Department of Chemical and Biomolecular Engineering, Lamar University, P.O. Box 10053, Beaumont, TX 77710, USA
    Current address: TotalEnergies Port Arthur Refinery, Port Arthur, TX 77642, USA.)

  • Gevorg Sargsyan

    (School of Accounting, Finance and Economics, Lamar University, Beaumont, TX 77710, USA)

Abstract

Excess associated gas from unconventional wells is typically flared while excess produced water is injected underground. In this work, flare gas recovery is integrated with produced water desalination and a solar pre-heater. The solar module with a beam splitter preheats the produced water. Aspen Plus process modeling, economic analysis, and greenhouse gas analysis were performed. The solar flare gas recovery desalination (Solar-FGRD) process can conserve water resources and reduce the brine injection by 77%. The accompanying solar farm results in excess solar electricity for exporting to the grid. The process burner combustion efficiency (CE) is 99.8%, with a destruction and removal efficiency (DRE) of 99.99% for methane as opposed to a flare CE of 80–98% (and a methane DRE of 91–98%). The greenhouse gas (GHG) emissions for CO 2 and methane, in terms of CO 2 equivalent (CO 2 e), can be reduced by 45% for US North Dakota and Texas flaring and 13% for North Sea flaring by employing the Solar-FGRD process. Comprehensive financial analysis demonstrates the financial–economic feasibility of the investment project with or without tax credits. Best-case and worst-case scenarios provide a realistic range that investors can consider before making investment decisions.

Suggested Citation

  • Daniel H. Chen & Fuad Samier Aziz & Gevorg Sargsyan, 2024. "Associated Gas Recovery Integrated with Solar Power for Produced Water Treatment: Techno-Economic and Environmental Impact Analyses," Energies, MDPI, vol. 17(22), pages 1-17, November.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:22:p:5794-:d:1525047
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    References listed on IDEAS

    as
    1. Mawih Kareem Al-Ani, 2015. "A Strategic Framework to Use Payback Period in Evaluating the Capital Budgeting in Energy and Oil and Gas Sectors in Oman," International Journal of Economics and Financial Issues, Econjournals, vol. 5(2), pages 469-475.
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