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炭素回収エネルギー柔軟性を考慮したCCPP–BECCSのマルチタイムスケール協調低炭素運用

Multi-Timescale Coordinated Low-Carbon Dispatch of CCPP–BECCS Considering Carbon Capture Energy Flexibility (原題)

Xiaoli Zhang, Weifang Lin, Haoran Sun

Electronics📚 査読済 / ジャーナル2026-10-26#CCUSOrigin: CN経営インパクト: コスト削減対象セクター: power
DOI: 10.3390/electronics15214943
原典: https://doi.org/10.3390/electronics15214943

🤖 gxceed AI 要約

日本語

本論文は、柔軟な炭素回収発電（CCPP）と石炭・バイオマス混焼BECCSのマルチタイムスケール協調運用モデルを提案する。吸収・再生分離、リッチ溶媒貯蔵、柔軟なバイオマス配分、発生源別炭素会計を統合し、予備力制約を明示的に組み込む。同一の生物的炭素除去要件下では、柔軟混焼が固定混焼より運用コストと純排出を低減する一方、回収電力消費が増えることを示す。

English

This paper proposes a multi-timescale coordinated dispatch model for a flexible carbon capture power plant (CCPP) and a coal–biomass co-firing BECCS unit, integrating absorption–regeneration decoupling, rich solvent storage, flexible biomass allocation, and source-differentiated carbon accounting. Under an identical biogenic removal requirement, flexible co-firing lowers operating costs and net emissions versus fixed co-firing while raising capture electricity consumption. Scenario-based commitment reduces reserve shortfalls in hourly tests but not at finer resolution.

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

日本はGX推進とCCS/カーボンリサイクルを成長分野と位置づけ、火力の脱炭素化と炭素除去の制度設計が論点となる。本モデルは火力発電所の炭素回収柔軟運用とBECCSの除去量会計を扱い、国内のGX電源政策や排出量取引制度における除去クレジット設計に示唆を与える。

In the global GX context

As ISSB/CSRD push companies to disclose gross emissions and carbon removals separately, this work's source-differentiated carbon accounting and biogenic removal quantification speak directly to emerging removal-credit and net-zero accounting debates. It also informs how dispatchable carbon capture can support grid flexibility under high-renewable systems.

👥 読者別の含意

🔬研究者:炭素回収発電とBECCSの協調運用、除去量と電力柔軟性のトレードオフを定量化するモデリング手法を学べる。

🏢実務担当者:火力・バイオマス混焼設備の脱炭素運用と炭素除去量の会計・報告設計の参考になる。

🏛政策担当者:炭素除去クレジットや火力脱炭素化の制度設計、系統柔軟性確保の政策検討に資する。

📄 Abstract（原文）

Coordinating carbon capture power plants (CCPPs) with bioenergy with carbon capture and storage (BECCS) requires balancing electrical flexibility, operating costs, and biogenic carbon removal. This paper proposes a multi-timescale coordinated dispatch model for a flexible CCPP and a coal–biomass co-firing BECCS unit. The model integrates absorption–regeneration decoupling, rich solvent storage, flexible biomass allocation, and source-differentiated carbon accounting. Explicit reserve activation constraints jointly represent generation ramping, capture load adjustment, solvent availability, and DC network limits. A two-stage scenario formulation determines common day-ahead commitment and scenario-dependent dispatch, followed by intraday and real-time adjustments. Case studies on a modified IEEE 39-bus system include technology comparisons, equal removal benchmarks, independent synthetic forecast error tests, and economic sensitivity analyses. The results show that biomass utilization depends on both economic conditions and carbon removal requirements. Under an identical biogenic removal requirement, flexible co-firing reduces operating costs and system net emissions relative to fixed co-firing while capture electricity consumption increases. Scenario-based commitment reduces reserve shortfalls in the hourly uncertainty tests, although the improvement does not persist in the finer-resolution evaluation. The proposed model quantifies the complementary roles of capture load flexibility and biomass allocation, providing a basis for coordinating electrical regulation and carbon removal services under network and operating constraints.

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