Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 569242
Title Capacitive processes for carbon capture and energy recovery from CO2 emissions : Shaping a new technology going from water to gas applications
Author(s) Legrand, Louis J.P.
Source Wageningen University. Promotor(en): C.J.N. Buisman, co-promotor(en): H.V.M. Hamelers; M. Tedesco. - Wageningen : Wageningen University - ISBN 9789463954891 - 218
Department(s) Biological Recovery & Re-use Technology
Publication type Dissertation, internally prepared
Publication year 2020

Reducing CO2 emissions into the atmosphere is one of the greatest environmental challenges of this century. Conventional technologies to capture CO2 gas from CO2 emissions points (e.g., power plants, chemical industry) have been developed, but their application has been hindered by their low energy efficiency and their intense use of harmful chemicals. In this Ph.D. thesis, we investigated a more sustainable approach based on capacitive technologies to reduce CO2 emissions from emissions points by (i) harvesting electrical energy from CO2 emissions, or/and (ii) capture CO2 gas from emissions points. Conventionally, this technology has been used and developed for water technology (water desalination and blue energy). Thus, this thesis mainly focuses on shaping this capacitive technology going from water to gas applications through three different steps, i.e., (1) proof of concept, (2) understanding of the concept, and (3) exploration of cell designs to optimize the technology. We mainly demonstrate that capacitive technologies can be used to capture CO2 and harvest electrical energy from CO2 emissions. We also show that the (i) energy losses due to electrical resistance must be minimized and that (ii) the ions selectivity during the process must be maximized to improve the performance of this technology. To overcome these two challenges, we proposed and discussed promising capacitive cell designs.

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