Developing reactors for electrifying bio-methanation: a perspective from bio-electrochemistry
Abstract
The integration of microbial synthesis with renewable electricity is an emerging route for both CO2 utilization and seasonal energy storage in the form of stored bio-electrofuels. The major benefits of electrifying bioreactors include: using highly selective bio-catalysts for CO2 conversion under mild reaction conditions; decoupling the production of more facile electrochemical intermediates, such as hydrogen, at the electrode from the production of bio-catalyzed multi-electron and/or carbon products, such as methane or acetate; using microbes as robust and self-regenerating catalysts enabling higher efficiency and durability in CO2 conversion systems compared to inorganic catalysis. In this Perspective, we propose research aimed at developing electro-bioreactor components that will increase the productivity of the reactor while maintaining high energy efficiency and biocompatible reaction conditions to fully realize the benefits of electrified bioreactors. Furthermore, these developments include: flow reactors with tailored 3D electrodes to optimally use the reactor volume, electrocatalysts designed for peak performance in neutral pH electrolytes, high conductivity microbial media, and new membrane separator materials with high ion conductivity and low gas permeability. Production of methane via a hybrid electrical-biological approach is taken as a case study to motivate these developments. Finally, an iterative design–manufacture–test cycle, enabled by additive manufacturing and 3D printingmore »
- Authors:
-
[1];
[1];
[2];
[3];
[3];
[3];
[4];
[4];
[1];
[1]
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Santa Cruz, CA (United States)
- Stanford Univ., CA (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Bioenergy Technologies Office
- OSTI Identifier:
- 1868862
- Alternate Identifier(s):
- OSTI ID: 1844810
- Report Number(s):
- LLNL-JRNL-824085
Journal ID: ISSN 2398-4902; 1036912
- Grant/Contract Number:
- AC52-07NA27344; AC36-08GO28308; TC02293
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Sustainable Energy & Fuels
- Additional Journal Information:
- Journal Volume: 6; Journal Issue: 5; Journal ID: ISSN 2398-4902
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 59 BASIC BIOLOGICAL SCIENCES
Citation Formats
Jayathilake, Buddhinie S., Chandrasekaran, Swetha, Freyman, Megan C., Deutzmann, Jörg S., Kracke, Frauke, Spormann, Alfred M., Huang, Zhe, Tao, Ling, Pang, Simon H., and Baker, Sarah E. Developing reactors for electrifying bio-methanation: a perspective from bio-electrochemistry. United States: N. p., 2022.
Web. doi:10.1039/d1se02041b.
Jayathilake, Buddhinie S., Chandrasekaran, Swetha, Freyman, Megan C., Deutzmann, Jörg S., Kracke, Frauke, Spormann, Alfred M., Huang, Zhe, Tao, Ling, Pang, Simon H., & Baker, Sarah E. Developing reactors for electrifying bio-methanation: a perspective from bio-electrochemistry. United States. https://doi.org/10.1039/d1se02041b
Jayathilake, Buddhinie S., Chandrasekaran, Swetha, Freyman, Megan C., Deutzmann, Jörg S., Kracke, Frauke, Spormann, Alfred M., Huang, Zhe, Tao, Ling, Pang, Simon H., and Baker, Sarah E. Fri .
"Developing reactors for electrifying bio-methanation: a perspective from bio-electrochemistry". United States. https://doi.org/10.1039/d1se02041b. https://www.osti.gov/servlets/purl/1868862.
@article{osti_1868862,
title = {Developing reactors for electrifying bio-methanation: a perspective from bio-electrochemistry},
author = {Jayathilake, Buddhinie S. and Chandrasekaran, Swetha and Freyman, Megan C. and Deutzmann, Jörg S. and Kracke, Frauke and Spormann, Alfred M. and Huang, Zhe and Tao, Ling and Pang, Simon H. and Baker, Sarah E.},
abstractNote = {The integration of microbial synthesis with renewable electricity is an emerging route for both CO2 utilization and seasonal energy storage in the form of stored bio-electrofuels. The major benefits of electrifying bioreactors include: using highly selective bio-catalysts for CO2 conversion under mild reaction conditions; decoupling the production of more facile electrochemical intermediates, such as hydrogen, at the electrode from the production of bio-catalyzed multi-electron and/or carbon products, such as methane or acetate; using microbes as robust and self-regenerating catalysts enabling higher efficiency and durability in CO2 conversion systems compared to inorganic catalysis. In this Perspective, we propose research aimed at developing electro-bioreactor components that will increase the productivity of the reactor while maintaining high energy efficiency and biocompatible reaction conditions to fully realize the benefits of electrified bioreactors. Furthermore, these developments include: flow reactors with tailored 3D electrodes to optimally use the reactor volume, electrocatalysts designed for peak performance in neutral pH electrolytes, high conductivity microbial media, and new membrane separator materials with high ion conductivity and low gas permeability. Production of methane via a hybrid electrical-biological approach is taken as a case study to motivate these developments. Finally, an iterative design–manufacture–test cycle, enabled by additive manufacturing and 3D printing technologies, is proposed to rapidly prototype components prior to large-scale manufacturing.},
doi = {10.1039/d1se02041b},
journal = {Sustainable Energy & Fuels},
number = 5,
volume = 6,
place = {United States},
year = {Fri Feb 11 00:00:00 EST 2022},
month = {Fri Feb 11 00:00:00 EST 2022}
}
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