Techno-Enviro-Economic Analysis of Precipitated Calcium Carbonate Production from Carbon Dioxide in Cement Industry Flue Gas and Calcium Hydroxide
セメント工場排ガス中の二酸化炭素と水酸化カルシウムからの沈降性炭酸カルシウム製造に関する技術・環境・経済分析 (AI 翻訳)
(著者不明)
🤖 gxceed AI 要約
日本語
本研究は、セメント産業の排ガスからCO2を回収し、水酸化カルシウムと反応させて沈降性炭酸カルシウム（PCC）を合成するプロセスをシミュレーションした。技術的、経済的、環境的分析を実施し、CO2回収効率99.5%、回収コスト65 USD/t-CO2、PCC製造コスト254 USD/t-CaCO3、CO2回避コスト92.85 USD/t-CO2を達成可能と示した。
English
This study simulates a process to capture CO2 from cement plant flue gas and react it with calcium hydroxide to produce precipitated calcium carbonate (PCC). Technical, economic, and environmental analyses show 99.5% CO2 capture efficiency, capture cost of $65/t-CO2, PCC production cost of $254/t-CaCO3, and CO2 avoidance cost of $92.85/t-CO2.
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
日本でもセメント産業はGXの重要分野であり、CCUS技術の実用化が急務。本研究で示されたコストデータは、日本のカーボンプライシングや補助金設計に示唆を与える。
In the global GX context
This paper provides techno-economic data for a specific CCUS pathway in cement, a hard-to-abate sector globally. The results inform cost benchmarks for carbon capture and utilization (CCU) strategies, relevant to global climate policy and industrial decarbonization.
👥 読者別の含意
🔬研究者:Technical simulation methodology and efficiency data for CCU process design in cement.
🏢実務担当者:Cost estimates for PCC production from cement flue gas, useful for feasibility assessments.
🏛政策担当者:CO2 avoidance cost of $92.85/t-CO2 helps evaluate CCUS subsidies or carbon pricing thresholds.
📄 Abstract（原文）
CCUS is a technological solution to reduce emissions from the cement industry, which is the second largest CO2-intensive industry. This study aims to analyze technical, economic, and environmental performance of Precipitated Calcium Carbonate (PCC) synthesis in cement industry flue gas. The process simulation includes the CO2 capture system from cement plant, CO2 captured used as feedstock for PCC synthesis process through its reaction with calcium hydroxide. The simulation was carried out using ASPEN Plus software. Technical analysis was performed to determine the CO2 capture efficiency and PCC synthesis efficiency. Economic analysis was conducted to calculate CO2 capture cost and production cost of PCC based on Levelized Cost of Chemical (LCOC)). Environmental analysis was carried out with gate- to-gate scope to quantify the amount of CO2 converted per unit of PCC produced and to assess the CO2 abatement potential. The study shows that a cement plant with a production capacity of 3,000 tons of clinker per day can capture 4,542 kg/h of CO2 with a purity of 98.3% and a capture efficiency of 99.5%. Estimated CO2 capture cost was USD 65 per ton of CO2. PCC produced amounted to 8,196 kg/h with a carbonation efficiency of 80.01%, and the LCOC was USD 254 per ton of CaCO3. Overall, the process was able to reduce emissions by 0.435 tons of CO2 per ton of CaCO3 produced, with a CO2 avoidance cost of USD 92.85 per ton of CO2.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.7454/jmef.v5i1.1107first seen 2026-05-05 23:43:47
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