Net Carbon Balance (NCB): a Better Way to Evaluate and Optimize Carbon Capture Technologies
ネットカーボンバランス（NCB）：CO2回収技術を評価・最適化するより良い方法 (AI 翻訳)
André F. Young, Aline R. Eckstein, Leonardo D. Ferreira, Vítor M. Sermoud, Ingrid A. de Oliveira
🤖 gxceed AI 要約
日本語
本論文はCO2回収技術の評価のための正味炭素収支（NCB）を単一の式で定量化する手法を提案する。間接排出（冷暖房、電力など）を考慮し、回収効率と環境性能の関係を明確にする。2つのプロセス（燃焼後・燃焼前MEA吸収）で実証し、Aspen HYSYSで物質・エネルギー収支を解析した。
English
This paper presents a single-equation metric, Net Carbon Balance (NCB), for evaluating CO2 capture technologies, incorporating indirect emissions from utilities. It clarifies the trade-off between capture efficiency and net environmental performance, demonstrated on post- and pre-combustion MEA absorption using Aspen HYSYS simulations.
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CCS・CCUSをGX実現の鍵と位置づけており、本提案のNCBは技術選択やコスト最適化に寄与する可能性がある。特に発電所や産業向けの排出削減計画で、間接排出を含む正味効果の評価指標として有用。
In the global GX context
The NCB metric aligns with global efforts to standardize carbon accounting for CCUS, offering a simple yet comprehensive tool for comparing technologies across regions and energy sources. It supports transition finance and ISSB-aligned disclosure by enabling transparent net emission reporting.
👥 読者別の含意
🔬研究者:Provides a rigorous yet practical objective function for optimizing carbon capture processes and comparing technologies.
🏢実務担当者:Offers a clear metric to communicate net emission reductions to investors and regulators, supporting project feasibility assessments.
🏛政策担当者:Supports developing consistent standards for CCUS performance evaluation and carbon credit frameworks.
📄 Abstract（原文）
The objective of this paper is to present a single equation format for quantifying the net carbon balance (NCB) in the evaluation of CO2 capture technologies, and to discuss the benefits of this approach. The equation must take into account indirect emissions, especially the contributions from utility generation systems (heating, cooling and electricity), making use of efficiency values and emission factors. The idea is to synthesize, in a single expression, the quantification of the environmental footprint of a technology, in a practical way so that it could be used as an efficient metric in technical evaluation studies, or as objective function/constraint in optimization problems. It also facilitates demonstrating the relationship between capture efficiency and environmental performance, as well as the contribution of each term to total emissions, and to compare different technologies in terms of time, location and available energy sources. To illustrate the application of the proposed NCB formulation, two processes were compared in two different scenarios: post-combustion and pre-combustion capture with MEA absorption, in a Base Case formulated with literature premises and an NCB Zero Case meaning carbon neutrality. A process simulator – Aspen HYSYS – was used to solve the mass and energy balances associated with each process, providing the necessary information for NCB calculation, whose parameters were obtained from the technical literature and were discussed in relation to their importance to the proposed analysis.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.69997/sct.188113first seen 2026-06-20 06:47:28 · last seen 2026-06-21 05:33:23
- openalex https://doi.org/10.69997/sct.188113first seen 2026-06-21 05:16:33
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