System effects and global CO2 emissions from carbon capture in Swedish district heating production – A case study
スウェーデンの地域暖房生産における炭素回収のシステム効果と世界のCO2排出量 – ケーススタディ (AI 翻訳)
Magnus Åberg, Mikael Sandanger, Mattias Gustafsson
🤖 gxceed AI 要約
日本語
スウェーデンのイェブレ市の地域暖房システムを線形計画法でモデル化し、炭素回収技術の導入が燃料使用、熱・電力生産、世界のCO2排出に与える影響を分析。バイオマス由来CO2を151～506キロトン回収でき、正味負の排出（-158～-510キロトン）が可能と示す。ただし、熱電併給の発電能力が22～113%低下し、バイオマス使用量が最大44%増加するなど、システム全体の影響は大きい。
English
This study models district heating in Gävle, Sweden, using linear programming to assess carbon capture impacts. It finds potential to capture 151-506 ktonnes of biogenic CO2, achieving net-negative emissions of -158 to -510 ktonnes. However, electricity production in combined heat and power plants drops by 22-113%, and wood chip use could rise by 44%, highlighting significant system trade-offs.
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
日本では地域暖房の普及は限定的だが、バイオマス発電や熱利用におけるCCUS導入のシステム影響評価は、日本のエネルギー政策やカーボンニュートラル戦略に示唆を与える。特に、CCS導入に伴う発電効率低下やバイオマス調達増加は、日本のFIT制度や地域エネルギー計画に参考となる。
In the global GX context
This study provides a detailed system-level analysis of carbon capture in district heating, relevant to global discussions on bioenergy with carbon capture and storage (BECCS) and net-negative emissions. It highlights trade-offs between carbon removal and energy output, informing policy on CCS deployment and biomass use, especially in the context of the European energy crisis.
👥 読者別の含意
🔬研究者:Provides a quantitative framework for assessing system-wide effects of CCS in district heating, useful for energy system modeling and BECCS research.
🏢実務担当者:Offers insights for district heating operators and energy planners on the operational impacts of integrating carbon capture, including electricity output reductions and biomass supply implications.
🏛政策担当者:Informs policy on CCS incentives and biomass sustainability, highlighting the need to balance carbon removal benefits with energy security and resource use.
📄 Abstract（原文）
The EU aims to be climate-neutral by 2050, meaning that greenhouse gas emissions are to be net-zero. Sweden has good potential for net-negative emissions using carbon capture technologies in biomass-based district heating production systems. However, capturing CO 2 from flue gases requires heat and electricity, which affects net outputs of heat and electricity from combined heat and power plants. In this study, district heating production in the Swedish city of Gävle is modeled using linear programming. The impact of installing carbon capture technologies on two different production plants is investigated. Changes in fuel use, heat and electricity production and global CO 2 emissions are calculated. The results show that between 151 and 506 ktonnes of biogenic CO 2 can be captured and net-negative emissions of −158 to −510 ktonnes of CO 2 are potentially achieved by implementing carbon capture in the Gävle district heating system. Electricity production capacities in combined heat and power plants are significantly reduced, between 22% and 113% depending on the carbon capture process. Hot potassium-based processes generally reduce electricity generation more than processes based on amines or ammonia. The overall system effects strongly depend on the size and operational conditions of the plant equipped with carbon capture technology. Carbon capture in the Gävle district heating production system could potentially increase the local use of wood chips by as much as 44%. With the current European energy crisis in mind, the overall benefit of increasing biomass use for capturing CO 2 needs to be further scrutinized.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.nxener.2026.100864first seen 2026-08-09 05:02:31
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