Network Optimization of the Electrosynthesis of Chemicals from CO2

Ana Somoza-Tornos, Omar Guerra, Wilson Smith, Bri-Mathias Hodge

Research output: Contribution to conferencePaperpeer-review

Abstract

Carbon dioxide electroreduction (ECO2R) is gaining attention due to its capacity to mitigate CO2 emissions while using electricity that would otherwise be curtailed. Its foreseeable industrial implementation requires of holistic methods to assess the technological and economic performance of ECO2R processes and integrate them in current chemical supply chains and power systems. Here, we combine techno-economic assessment and mathematical programming to find the optimal paths to electroreduce CO2 into valuable chemicals under variable electricity prices. The proposed approach is tested with a case study addressing the CO2 capture from flue gas or direct air and its electricity-powered reduction into carbon monoxide, formic acid or multi-carbon compounds. The results obtained demonstrate the ability of the framework to build ECO2R networks and provide operation profiles that respond to fluctuating electricity prices.

Original languageAmerican English
Pages733-738
Number of pages6
DOIs
StatePublished - Jan 2022
Event14th International Symposium on Process Systems Engineering - Tokyo, Japan
Duration: 1 Jul 202123 Jul 2021

Conference

Conference14th International Symposium on Process Systems Engineering
CityTokyo, Japan
Period1/07/2123/07/21

Bibliographical note

Publisher Copyright:
© 2022 Elsevier B.V.

NREL Publication Number

  • NREL/CP-6A40-84063

Keywords

  • carbon dioxide
  • electroreduction
  • optimization
  • superstructure
  • techno-economic assessment

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