Technoeconomic and Environmental Assessments of CO <sub>2</sub> Methanation and Liquefaction for Climate Mitigation
気候緩和のためのCO2メタネーションと液化の技術経済・環境評価 (AI 翻訳)
Changgwon Choe, Jiwon Gu, Junaid Haider, Seunghyun Cheon, Anthony Paul Roskilly, Muhammad Abdul Qyyum, Hankwon Lim
🤖 gxceed AI 要約
日本語
CO2メタネーションによる液化合成天然ガス生産の技術経済・環境分析。再生可能電力シナリオ下でコスト（76～109 $/GJ）と環境性能（0.015 tCO2-eq/GJ）を評価し、化石天然ガスへの代替可能性を示した。
English
This study conducts a technoeconomic and environmental analysis of liquefied synthetic natural gas production via CO2 methanation. It evaluates costs (76–109 $/GJ) and environmental impact (0.015 tCO2-eq/GJ) under various renewable electricity scenarios, highlighting its potential as a climate mitigation option.
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CCUS・合成燃料の研究開発を推進中。本論文のコスト評価は、国内のe-メタン導入検討に重要なベンチマークを提供する。
In the global GX context
Globally, power-to-methane is gaining attention for decarbonizing gas infrastructure. This paper provides a systematic assessment of economic feasibility and environmental performance across multiple renewable supply scenarios, supporting technology deployment.
👥 読者別の含意
🔬研究者:Provides technoeconomic benchmarks for power-to-methane via CO2 methanation across multiple renewable electricity scenarios.
🏢実務担当者:Useful for assessing the economic viability and environmental impact of synthetic natural gas production in energy transition strategies.
🏛政策担当者:Informs policy support for CCU technologies and renewable electricity integration for decarbonizing gas supply.
📄 Abstract（原文）
Climate change driven by significant anthropogenic greenhouse gas emissions necessitates accelerating the decarbonization of the energy system. The power-to-X strategy has emerged as a promising pathway to convert renewable electricity into carbon-neutral energy carriers. Synthetic natural gas is an attractive solution due to its compatibility with existing natural gas infrastructures and widespread end-use applications. In this work, a technoeconomic and environmental analysis of liquefied synthetic natural gas production via CO2 methanation is conducted. The analysis focuses on evaluating the economic feasibility and environmental impact of the methane derived from green H2 and captured CO2 in multiple renewable electricity supply scenarios as well as future cost-reduction pathways. Such feasibility indicators are systematically assessed in different renewable electricity supply scenarios to investigate the climate mitigation potential. The assessment is conducted within a cradle-to-gate system boundary covering the production, liquefaction, and storage of synthetic natural gas, with conventional fossil-based natural gas used as the baseline for comparison. The results demonstrate that power-to-methane can show a wide cost range (76.0 to 109.0 $ GJ–1), which is dependent on electricity prices. Further, it can achieve competitive environmental performances (approximately 0.015 tonCO2-eq GJ–1) and represents a feasible alternative to fossil-based natural gas under favorable renewable electricity integration. This study highlights the potential role of synthetic natural gas as a sustainable energy carrier for long-term climate mitigation.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acssuschemeng.5c05941first seen 2026-06-14 04:28:53 · last seen 2026-06-14 04:38:09
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