Flue Gas Deacidification Technologies for Waste-to-Energy Plants in China: A Review of Progress, Mechanisms, and Perspectives
中国の廃棄物発電プラントにおける煙道ガス脱酸技術：進展、メカニズム、展望のレビュー (AI 翻訳)
Qi Miao, Zhengdong Jiang, Xianfeng Jiao, Conghua Ran, Jinsheng Zou, Jinxiang Li, Hongzhao Fan, Xianxiang Bai, Yunfeng Ma
🤖 gxceed AI 要約
日本語
中国の都市ごみ焼却発電は主要な廃棄物処理技術だが、酸性ガスによる腐食や飛灰問題が低炭素移行を阻む。本レビューは高温炉内脱酸の限界を明確化し、触媒酸化による段階的温度勾配協調脱酸経路を提案。産業廃棄物ベースの二機能吸着材やAI制御など4つの開発方向を示し、中国の「双炭」と「無廃都市」イニシアチブへの技術的支援を提供する。
English
This review addresses acid gas challenges in China's waste-to-energy incineration, hindering low-carbon transition. It identifies limitations of high-temperature deacidification and proposes a staged temperature-gradient synergistic pathway using catalytic oxidation. Four development directions are suggested, including industrial waste-based sorbents and AI closed-loop control, supporting China's Dual Carbon and Waste-Free City initiatives.
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
日本の廃棄物発電は高効率化が進むが、CO2排出削減と廃棄物削減の両立が課題。本レビューの脱酸技術改善は、日本の廃棄物発電の効率向上と環境負荷低減に示唆を与える。特にAI制御の提案は、日本のスマート廃棄物管理に応用可能。
In the global GX context
Globally, waste-to-energy is critical for circular economy and emissions reduction. This review offers insights into improving deacidification efficiency, reducing operational costs, and enhancing environmental performance, relevant to global efforts in sustainable waste management and climate mitigation.
👥 読者別の含意
🔬研究者:Provides a comprehensive review of deacidification technologies and proposes a novel catalytic oxidation pathway for further research.
🏢実務担当者:Offers actionable technical directions for upgrading waste-to-energy plants to improve efficiency and reduce costs.
🏛政策担当者:Highlights the need for supportive policies for advanced deacidification technologies to achieve waste and carbon reduction goals.
📄 Abstract（原文）
Municipal solid waste (MSW) incineration power generation has become the dominant waste treatment technology in China. However, acid flue gas dominated by HCl and SO2 induces severe boiler corrosion, a surge in hazardous fly ash, and uncontrolled operational costs, significantly hindering the industry’s low-carbon transition. While conventional dry, semi-dry, and wet deacidification processes meet emission standards, they face an irreconcilable trilemma, failing to concurrently optimize removal efficiency, economic viability, and solid waste reduction. This review clarifies that high-temperature in-furnace deacidification represents a future development direction yet identifies two critical limitations: above 700 °C, external mass transfer remains the rate-controlling step, and the combined effects of CaSO3 decomposition and sorbent sintering lead to inefficient desulfurization. Meanwhile, in the 130–400 °C range, HCl preferentially occupies active sites, inhibiting SO2 adsorption. To address these challenges, this study proposes an innovative staged temperature–gradient synergistic deacidification pathway driven by catalytic oxidation. This strategy utilizes transition metals at high temperatures to oxidize SO2 into SO3, which is subsequently converted into thermally stable CaSO4, while decoupling SO2 pre-removal from the targeted capture of HCl in their respective optimal windows. Finally, four executable development directions are systematically proposed: industrial waste-based bifunctional sorbents, multi-field coupled gas–solid mass transfer intensification, staged deacidification processes, and full-process AI closed-loop control. These findings provide systematic theoretical support and actionable technical references for upgrading MSWI technology under China’s “Dual Carbon” and “Waste-Free City” initiatives.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://www.mdpi.com/2227-9717/14/15/2463/pdf?version=1785481246first seen 2026-08-06 05:31:12
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