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「代替境界が決めるとき：プラスチックリサイクルと廃棄物発電CCSを比較する一般基準」のデータとコード

Data and code for "When substitution boundaries decide: a general criterion for comparing plastic recycling with waste-to-energy carbon capture" (原題)

Cheng, Tianjiao, Onoda, Hiroshi

Zenodoプレプリント2026-09-02#炭素会計Origin: JP経営インパクト: 調達リスク対象セクター: waste_management
DOI: 10.5281/zenodo.22255308
原典: https://zenodo.org/records/22255308

🤖 gxceed AI 要約

日本語

本データ・コードは、日本における廃プラスチック処理7ルート（PET・HDPE・PPの機械的リサイクル、化学リサイクル2種、焼却発電、CCS付き焼却）を、代替境界の違いを考慮した統一的な化石炭素収支で比較する論文の完全な計算チェーンを提供する。時間分解されたCO2応答関数とモンテカルロ解析により、累積放射強制力を指標に各ルートの優劣を評価している。再現可能なコードとデータが公開され、GX政策の意思決定に資する。

English

This data and code release provides the complete calculation chain behind a paper comparing seven post-consumer plastic treatment routes in Japan (mechanical recycling of PET/HDPE/PP, two chemical recycling blocks, incineration with energy recovery, and incineration with CCS) under two substitution boundary conventions on a unified fossil-carbon balance. Using time-resolved CO2 impulse response and Monte Carlo analysis, it evaluates routes by cumulative radiative forcing. Reproducible code and data are provided to inform GX policy decisions.

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

日本ではプラスチック資源循環とCCSの位置づけが政策課題であり、本データは廃プラ処理の温暖化影響を定量的に比較する基準を提供する。SSBJ開示やサプライチェーン排出量算定において、リサイクルと廃棄処理の境界設定の重要性を示す実証的根拠となる。

In the global GX context

Globally, the paper addresses a critical methodological gap in comparing recycling and waste-to-energy with CCS, relevant to circular economy and climate mitigation accounting. The explicit boundary-shift identity and reproducible calculation chain offer a rigorous framework for LCA practitioners and policymakers aligning with ISSB/CSRD disclosure requirements.

👥 読者別の含意

🔬研究者:Provides a reproducible calculation framework and boundary-shift identity for comparing recycling and CCS routes, useful for LCA and carbon accounting research.

🏢実務担当者:Offers a quantitative basis for choosing waste treatment routes and understanding substitution boundary effects on reported emissions.

🏛政策担当者:Informs policy on plastic recycling and CCS deployment by clarifying how boundary choices affect comparative climate impact.

📄 Abstract（原文）

Complete machine-readable data and calculation chain behind the manuscript "When substitution boundaries decide: a general criterion for comparing plastic recycling with waste-to-energy carbon capture". Comparative assessments credit plastic recycling with the virgin production it displaces, and how far that credit extends into the displaced material's own end of life is a boundary choice on which assessments in current use differ. Seven treatment routes for one tonne of post-consumer plastic arising in Japan (mechanical recycling of PET, HDPE and PP, two chemical-recycling blocks, incineration with energy recovery, and incineration with carbon capture and storage) are evaluated under both boundary conventions on one explicit fossil-carbon balance, resolved in time with the CO2 impulse response of Joos et al. (2013) and reported as cumulative radiative forcing, and propagated through a shared-draw Monte Carlo analysis. The release contains 34 data files and the complete calculation chain: the result matrices under both boundaries, the sign and rank comparisons, the reference flows, the boundary-shift identity checked against the observed shift for every route, the 360-combination parameter sweep, the grid-factor and capture break-even analyses, and the 20,000-draw matched-composition Monte Carlo evaluated on the same draws under both boundaries. A single entry point, run_all.py, regenerates every number from fixed seeds (Monte Carlo seed 20260813), and verify_p2.py runs 44 engine invariants that assert no result reported in the paper. The code/ and data/ trees are byte-identical to the archive supplied with the manuscript, verified from a fresh clone against the SHA-256 manifest. Licensing: the Python code is released under the MIT licence and the data files under CC BY 4.0; see LICENSE and data/LICENSE.txt. Funded by the Japan Science and Technology Agency (JST) through the SICORP e-ASIA Joint Research Program (JPMJSC24E1) and by the Environment Research and Technology Development Fund (JPMEERF20253J01) of the Environmental Restoration and Conservation Agency (ERCA), Japan, funded by the Ministry of the Environment, Japan.

🔗 Provenance — このレコードを発見したソース

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gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。