亜臨界石炭火力におけるおがくず混焼・CCS統合の技術経済評価
Asesmen Tekno-Ekonomi Co-firing Sawdust Terintegrasi CCS pada PLTU Batubara Subkritis (原題)
Agus Salim, Ignatius Rendroyoko
🤖 gxceed AI 要約
日本語
インドネシアの350MW亜臨界微粉炭火力を対象に、おがくずバイオマス混焼（5〜30%）とMEA方式CCSの統合効果をIECM 13.0で評価。CCS導入で正味出力は314→206MW、効率は31.1→18.9%に低下し、LCOEは約219%増加。混焼10%でCO2排出は実質ゼロ、30%でマイナスとなり、炭素価格約100USD/tが経済性の分岐点と示された。
English
Using IECM 13.0, this study assesses sawdust co-firing (5-30%) combined with MEA-based CCS on a 350 MW subcritical coal plant in Indonesia. CCS cuts net output from 314 to 206 MW and efficiency from 31.1% to 18.9%, raising LCOE by ~219%. Net CO2 reaches neutrality at 10% co-firing and turns negative at 30%; carbon price (~100 USD/t) is the dominant feasibility driver.
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
日本でも石炭火力の段階的廃止と混焼・CCSの位置づけが議論されており、炭素価格感度やLCOE上昇幅の定量は、GX政策・移行金融の設計に示唆を与える。ただし対象はインドネシアの制度・価格前提であり、日本のSSBJ開示や国内炭素価格制度への直接適用には注意が必要。
In the global GX context
Provides integrated techno-economic evidence on co-firing plus CCS for existing subcritical coal fleets, relevant to global transition finance and just-transition debates in emerging economies. The carbon-price sensitivity (~100 USD/t) informs how carbon pricing can unlock CCS retrofits under ISSB/TCFD-aligned transition planning.
👥 読者別の含意
🔬研究者:混焼とCCSの統合評価手法（IECM）と炭素価格感度の定量枠組みを、他地域の石炭移行研究に応用できる。
🏢実務担当者:石炭資産を持つ企業は、混焼率とCCS導入に伴うLCOE上昇・出力低下を自社移行計画の前提として把握できる。
🏛政策担当者:炭素価格がCCS経済性の決定的要因であることを示し、移行支援策や炭素価格設計の根拠として活用できる。
📄 Abstract（原文）
Coal-fired power plants (CFPPs) remain dominant in Indonesia's electricity mix and are a major contributor to national CO2 emissions, while the government targets an emission reduction of up to 43.20% by 2030 and Net Zero Emissions by 2060. Sawdust biomass co-firing and Carbon Capture and Storage (CCS) are two decarbonization options for existing CFPPs, yet their combined effect on the technical, economic, and environmental performance of a subcritical pulverized coal (PC) unit has not been widely studied in an integrated manner. This study analyzes the effect of sawdust biomass co-firing ratio variation (5-30%) combined with MEA-based post-combustion CCS on the technical performance, economics, and CO2 emission intensity of a 350 MW subcritical PC power plant, as well as the sensitivity of its economic feasibility to carbon prices, using IECM 13.0 simulation software. The results show that biomass co-firing incurs only a minor performance penalty, whereas CCS reduces net power output from 314.34 MW to 206.26 MW and net efficiency from 31.08% to 18.85%. The Levelized Cost of Electricity (LCOE) increases by approximately 219% after CCS implementation, from 0.0514 to 0.1638-0.1669 USD/kWh, while net CO2 emissions reach carbon neutrality at a 10% co-firing ratio and continue to decline to a negative value (-0.3392 kg/kWh) at a 30% co-firing ratio with CCS. Carbon price is shown to be the most dominant factor determining the economic feasibility of CCS, with the effective LCOE approaching the national average at a carbon price of around 100 USD/tCO2.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.55606/juprit.v5i3.6666first seen 2026-09-13 04:49:47
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