Work

Maximum and Comparative Efficiency Calculations for Integrated Capture and Electrochemical Conversion of CO 2

Year: 2024

Type: editorial

Abstract: The integration of CO2 capture and conversion has the potential to decrease the capital and energetic cost of utilizing dilute CO2 streams. Herein we evaluate the overall energy efficiency for electrochemical conversion of dilute CO2 streams to product. Additionally, the energetic requirement for the use of intermediary sorbents for CO2 capture is described, which facilitates the comparison of catalyst efficiencies using the same sorbent in the context of initial CO2 concentration. We also introduce a parameter, ΔERCC, that evaluates the suitability of sorbents for dilute CO2 streams. These energetic considerations provide quantitative metrics for evaluating integrated CO2 capture and conversion systems.

Source: ACS Energy Letters

DOI: 10.1021/acsenergylett.3c02489

Authors: Aaron M. Appel, Jenny Y. Yang

Institutions: Pacific Northwest National Laboratory, University of California, Irvine

Language: English

Topic: CO2 Reduction Techniques and Catalysts

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDGs: Climate action, Affordable and clean energy, Responsible consumption and production

Open Access status: green

Funders: U.S. Department of Energy, Office of Science, Basic Energy Sciences, Energy Frontier Research Centers