An Integrated Supercritical System for Efficient Produced Water Treatment and Power Generation

 

Conceptual diagram of the proposed supercritical<br/>produced water desalination and energy generation system.
Conceptual diagram of the proposed supercritical
produced water desalination and energy generation system.
Performer: 
University of Illinois at Urbana-Champaign
Website:  University of Illinois
Award Number:  FE0024015
Project Duration:  01/01/2015 – 12/31/2017
Total Award Value:  $656,311
DOE Share:  $499,427
Performer Share:  $156,884
Technology Area:  Plant Optimization Technologies
Key Technology: 
Location:  Champaign, Illinois

Project Description

The goal of this project is to evaluate the feasibility of an innovative, integrated, supercritical cogeneration system for cost-effective treatment of produced waters from carbon dioxide (CO2) sequestration, oilfields, and coal-bed methane recovery. Methane or coal is used as energy source to drive the proposed system that generates both electricity and pure water. Project tasks include process simulation, thermodynamic analysis, and techno-economic evaluation of the integrated system; design and assembly of supercritical salt precipitation and membrane distillation systems; development and characterization of advanced carbon membranes for supercritical membrane distillation; and desalination and purification of different produced water samples with salt concentrations of 30,000 ppm (mg/L) to 200,000 ppm.

Project Benefits

This project may provide a transformative approach to generating power from coal or natural gas, purifying water from high salinity saline or produced water, and recovering valuable and strategic minerals in a zero liquid discharge plant. Because of the higher efficiency of the proposed supercritical integrated system compared to existing cogeneration or evaporation/crystallization systems, produced water is expected be treated at a much lower cost.

Contact Information

Federal Project Manager 
Barbara Carney: barbara.carney@netl.doe.gov
Technology Manager 
Briggs White: briggs.white@netl.doe.gov
Principal Investigator 
Seyed Dastgheib: seyed@illinois.edu
 

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