Electrolyser and anaerobic digestion driven CO2 hydrogenation routes towards sustainable dimethyl ether production: A review of carbon capture technologies, advanced reactor technologies, and sustainability assessment
持続可能なジメチルエーテル製造に向けた電解槽と嫌気性消化によるCO2水素化経路：炭素回収技術、先進反応器技術、持続可能性評価のレビュー (AI 翻訳)
Avinash Ankush Lad, Aniket Y. Patrikar, Ratnadip R. Joshi
🤖 gxceed AI 要約
日本語
本レビューは、再生可能DME製造の2つの経路（水電解と嫌気性消化）をシステムレベルで比較し、炭素回収技術、触媒・反応器性能、プロセス強化、エネルギー要件、炭素利用、スケールアップの限界を評価する。TEAとLCAにより、各経路の環境・経済性能は条件付きであり、LCA境界と仮定を明確にしない限り、普遍的ネットゼロやカーボンネガティブと分類すべきでないと結論付ける。
English
This review compares two renewable DME production routes (electrolysis and anaerobic digestion) at a systems level, evaluating carbon capture technologies, catalyst and reactor performance, process intensification, energy requirements, carbon utilization, and scale-up limitations. TEA and LCA indicate that the environmental and economic performance of each route is conditional, and neither should be classified as universally net-zero or carbon-negative without clearly defining LCA boundaries and assumptions.
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
日本では、水素戦略やCCUS推進の文脈で、CO2を原料とする合成燃料（e-fuel）の開発が注目されている。本レビューは、DME製造経路の比較を通じて、技術選択の条件性を明らかにし、日本のe-fuel政策やLCA評価の枠組みに示唆を与える。
In the global GX context
Globally, the review contributes to the discourse on Power-to-X and synthetic fuels, highlighting the importance of LCA boundaries and assumptions in assessing carbon neutrality claims. It provides a systems-level comparison that can inform policy and investment decisions in the context of the energy transition and carbon capture utilization.
👥 読者別の含意
🔬研究者:Provides a comprehensive systems-level comparison of DME production routes, highlighting the conditional nature of environmental performance and the need for clear LCA boundaries.
🏢実務担当者:Offers insights into technology selection and process design for companies considering DME as a low-carbon fuel, emphasizing the importance of feedstock and energy sources.
🏛政策担当者:Informs policy on synthetic fuels and carbon capture by demonstrating that net-zero claims require rigorous LCA and boundary definitions.
📄 Abstract（原文）
Power-to-X (PtX) technology-based fuels can reduce greenhouse-gas (GHG) emissions by using captured carbon dioxide (CO 2 ) and can therefore support climate-change mitigation goals. PtX products include methane, methanol (MeOH), Fischer-Tropsch fuels, ammonia, and dimethyl ether (DME). DME is a potentially sustainable energy carrier that can substitute for diesel and liquefied petroleum gas (LPG), and it can be blended with LPG as a cleaner alternative fuel. Although previous studies have reported advances in catalyst developments, individual production routes, and PtX products, however, limited attention has been provided to a systems-level comparison of two feasible renewable DME production routes. This review compares water-splitting electrolysis and anaerobic-digestion routes and evaluates carbon-capture technologies, catalysts and reactor performance, process intensification, energy requirements, carbon utilization, and scale-up limitations within a systems framework. Techno-economic analysis (TEA) and life-cycle assessment (LCA) indicates the environmental and economic performance of each route is conditional rather than inherent. The electrolyser-driven route can achieve a low life-cycle carbon footprint when hydrogen is produced using low-carbon based electricity source along with CO 2 capture, followed by compression, are supplied by low-emission energy. The anaerobic-digestion-driven route can provide significant GHG reductions and may achieve a net-negative result under specific waste-management scenarios. However, its performance strongly depends on feedstock source, avoided-emission credits, process-energy demand, biogas purification, reforming, and digestate management. Consequently, neither of the specific routes should be classified as universally net-zero nor carbon-negative without clearly defining their LCA boundaries and assumptions.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.nxener.2026.100902first seen 2026-08-17 05:00:03
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