Techno-economic Analysis of Capacitive Deionization (CDI) Use for Separations of Biofuels in the Production Process

Session Number

Project ID: ENGN 11

Advisor(s)

Dr. Lauren Valentino, Argonne National Laboratory

Discipline

Engineering

Start Date

17-4-2024 9:40 AM

End Date

17-4-2024 9:55 AM

Abstract

Biofuels play a critical role in transitioning towards a sustainable energy system. Affordable and low-carbon biofuels are especially important for hard- to-electrify transportation sectors, such as aviation. Cost and efficiency are the main challenges faced in the biofuel production process, with the separation of valuable organic acids from fermented broth accounting for 50% of the total energy use and up to 70% of overall costs. Capacitive Deionization (CDI), an electro-chemical separations method traditionally used in water desalination, is a promising technology that offers lower energy consumption compared to conventional, thermal-based separations. The application of CDI for biofuel production at an industrial scale remains underexplored. This research aims to provide a techno-economic analysis of using CDI for biofuel precursors, evaluating both the technical and economical feasibility of CDI on larger scales. The findings investigate the industrial architecture of CDI modules, and a comprehensive analysis of important costs, enhancing understanding of CDI's potential and utilization in the transition to sustainable biofuels.

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Apr 17th, 9:40 AM Apr 17th, 9:55 AM

Techno-economic Analysis of Capacitive Deionization (CDI) Use for Separations of Biofuels in the Production Process

Biofuels play a critical role in transitioning towards a sustainable energy system. Affordable and low-carbon biofuels are especially important for hard- to-electrify transportation sectors, such as aviation. Cost and efficiency are the main challenges faced in the biofuel production process, with the separation of valuable organic acids from fermented broth accounting for 50% of the total energy use and up to 70% of overall costs. Capacitive Deionization (CDI), an electro-chemical separations method traditionally used in water desalination, is a promising technology that offers lower energy consumption compared to conventional, thermal-based separations. The application of CDI for biofuel production at an industrial scale remains underexplored. This research aims to provide a techno-economic analysis of using CDI for biofuel precursors, evaluating both the technical and economical feasibility of CDI on larger scales. The findings investigate the industrial architecture of CDI modules, and a comprehensive analysis of important costs, enhancing understanding of CDI's potential and utilization in the transition to sustainable biofuels.