Energy Transition in the Cement Industry: Decarbonization Pathways and the Role of Hydrogen
セメント産業におけるエネルギー転換：脱炭素化経路と水素の役割 (AI 翻訳)
Alessandro Franco, Wilfried Marius Simo Toukam
🤖 gxceed AI 要約
日本語
セメント製造のエネルギー・排出バランスをベンチマークから定量化し、省エネ、代替燃料、クリンカ代替、電化、水素利用、CCSなどの脱炭素化経路を評価。特に水素は燃焼由来排出を50-250 kg CO₂/t削減可能であり、CCSはプロセス排出に対応するために不可欠と結論。
English
This study quantifies cement manufacturing's energy and emission baselines and evaluates decarbonization pathways including efficiency, alternative fuels, clinker substitution, electrification, hydrogen, and CCS. Hydrogen can reduce combustion emissions by 50–250 kg CO₂/t cement, but deep decarbonization requires CCS to address process emissions.
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
日本ではセメント産業がCO₂排出の約5%を占め、政府のGX政策の中で水素利用やCCSの実証が進む。本論文は定量的ベースラインを提供し、日本のセメント企業の削減計画や政策立案に有用。
In the global GX context
Globally, cement is a hard-to-abate sector; this paper provides a systematic benchmark and pathway comparison relevant to TCFD and ISSB disclosures, transition planning, and investor engagement on climate.
👥 読者別の含意
🔬研究者:Provides quantitative baselines and systematic comparison of decarbonization levers for cement, valuable for research on industrial decarbonization.
🏢実務担当者:Offers clear emission reduction potentials for each technology, useful for cement companies to prioritize actions and communicate decarbonization strategy.
🏛政策担当者:Informs policy design on technology support and CCS infrastructure for hard-to-abate sectors.
📄 Abstract（原文）
The cement industry is one of the most challenging sectors to decarbonize due to the coexistence of high-temperature thermal demand and process-related emissions from limestone calcination. This study presents an energy and emissions assessment of cement manufacturing based on representative mass and energy balances derived from literature benchmarks and industrial operating data. Typical cement production requires 2.8–3.6 GJ of thermal energy and 80–120 kWh of electricity per ton of final product, resulting in total emission in the range 500–850 kg CO₂/t cement, of which 55–65% originate from clinker calcination. Moving from this baseline, possible decarbonization pathways are evaluated, including energy efficiency improvements, clinker substitution through supplementary cementitious materials use of alternative fuels, electrification, hydrogen utilization and carbon capture technologies. The analysis shows that energy efficiency measures provide relatively limited reductions (10–30 kg CO₂/t cement), while alternative fuels and clinker substitution can achieve larger but still partial benefits. Hydrogen emerges as a promising option for decarbonizing the combustion-related share of emissions, with a potential reduction ranging from 50 to 250 kg CO₂/t cement, particularly when integrated with oxy-fuel combustion systems. Deep decarbonization ultimately requires carbon capture and storage (CCS), the only technology capable of addressing the substantial process emissions inherent to clinker production and use of hydrogen can be relevant too.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.20944/preprints202606.1362.v1first seen 2026-06-23 06:05:39
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