Abstract
Conventional seawater desalination technologies and fossil energy operations produce large volumes of hypersaline brines requiring proper management. Zero liquid discharge desalination processes can offer an economic and environmentally responsible method to manage these complex streams. The objective of this study was to assess preliminary economics for a novel Joule-heated desalination process design. Aspen Plus® was employed to model two scenarios, one with a chemical precipitation pretreatment using sodium sulfate, sodium hydroxide and calcium carbonate (scenario A) and the other using CO2 instead of calcium carbonate as precipitating agent in the pretreatment stage (scenario B). The conditions for the water desalination step were 22.1MPa and 430°C. Internal Joule-heating provides the energy in the supercritical water separation step. The preliminary economic model projects a cost of $4.29perm3 feed ($0.68/bbl feed) for scenario A and $7.10 perm3 feed ($1.13/bbl feed) for scenario B.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
