Techno-Economic Assessment of Electrochemical CO2 Reduction to Ethylene: A Cu10–Sn Catalyst Case Study and Performance Targets

CO2の電気化学的還元によるエチレン製造の技術経済評価：Cu10–Sn触媒のケーススタディと性能目標 (AI 翻訳)

Kuquan Xiao, Ping Zhou, Xiqiang Zhao

Energies📚 査読済 / ジャーナル2026-05-20#CCUS経営インパクト: コスト削減対象セクター: chemical

DOI: 10.3390/en19102462

原典: https://doi.org/10.3390/en19102462

🤖 gxceed AI 要約

日本語

本論文は、Cu10-Sn触媒を用いたCO2の電気化学的エチレン転換プロセスについて、100トン/日規模のプラントを想定した技術経済評価を実施。現状の性能では5926 USD/tonと高コストだが、将来の改善により767.6 USD/tonまで低減可能であり、正味利益も見込める。感度分析では、ファラデー効率、セル電圧、電力価格が主要因。

English

This paper presents a techno-economic assessment of a 100-ton/day electrochemical CO2-to-ethylene plant using a Cu10-Sn catalyst. Current total cost is $5,926/ton, but future improvements could reduce it to $767.6/ton, enabling net profit. Key cost drivers are faradaic efficiency, cell voltage, and electricity price.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本はCO2有効活用技術への投資が活発で、本論文のコスト分析は国産技術の商業化目標設定に役立つ。特に、石炭火力発電所の排ガスを想定した点は日本の既存インフラと親和性が高い。

In the global GX context

This study provides a framework for translating lab-scale catalyst performance into industrial cost targets, relevant for global CCUS scale-up. The sensitivity analysis highlights electricity cost and cell efficiency as critical levers for commercialization.

👥 読者別の含意

🔬研究者:Provides a methodology for scaling catalyst metrics to industrial economic assessment, including cost and sensitivity analysis.

🏢実務担当者:Offers cost breakdown and performance targets for developing CO2-to-ethylene projects, aiding investment decisions.

🏛政策担当者:Highlights the need for low-carbon electricity and supportive policies to make electrochemical CO2 utilization economically viable.

📄 Abstract（原文）

Electrocatalytic CO2 reduction reaction (CO2RR) to ethylene (C2H4) has emerged as a promising approach for converting CO2 into valuable chemicals while utilizing renewable electricity. To facilitate the commercialization of this technology, a process-level techno-economic assessment (TEA) is constructed for a plant producing 100 tons/day of C2H4 from coal-power flue gas CO2 using a membrane electrode assembly (MEA) electrolyzer and downstream gas separations. The model integrates (i) flue gas CO2 capture by chemical absorption, (ii) CO2RR to C2H4 with H2 as the only co-product, and (iii) cathode off-gas separation by pressure swing adsorption (PSA) plus anode off-gas CO2 recovery and recycle. A Cu10–Sn catalyst measured in an H-cell is projected to MEA operation by scaling current density by 10×, yielding a “Case Study in This Article” scenario of j = 246 mA·cm−2 and FE(C2H4) = 48.74%. Under this scenario, the total cost is 592.61 thousand USD/day (5926 USD/ton), dominated by electricity (39.8%). Scenario analysis shows that the total cost can decrease to 76,755.0 USD/day (767.6 USD/ton) under a future-outlook case with improved electrolyzer performance and low-cost power, enabling a net profit of 19,945.0 USD/day at an ethylene selling price of 967 USD/ton. Sensitivity analysis identifies FE(C2H4), full-cell voltage, and electricity price as the most influential variables. The results translate laboratory catalyst metrics into industrial cost drivers and clarify quantitative performance targets for commercialization.

🔗 Provenance — このレコードを発見したソース

openalex https://doi.org/10.3390/en19102462first seen 2026-06-19 04:45:45

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