カナダの脱炭素化に向けた残存バイオマスの多層的利用戦略
Multi-scale utilization strategies of residual biomass for decarbonization in Canada (原題)
Hui Zhu
🤖 gxceed AI 要約
日本語
本論文はカナダの残存バイオマス利用を国家・地域・プロセスの3スケールで評価する。国家規模では液体・気体バイオ燃料が最大55〜64MtCO₂/年の削減ポテンシャルを持ち、輸出向けペレットを国内利用へ転換する余地を示す。地域規模では遠隔地の暖房転換がGHG81〜95%削減とコスト21〜74%削減を両立し、プロセス規模では嫌気性消化・熱分解統合により燃料生産106%増・GHG83%減を実証した。
English
This dissertation assesses residual biomass utilization across national, regional and process scales for Canada's decarbonization. National analysis finds liquid/gaseous biofuel pathways offer 55–64 MtCO2-eq/yr mitigation, with export-oriented pellets redirectable to domestic use. Regional remote-community analysis prioritizes bioheat heating transitions (81–95% GHG and 21–74% cost reduction per MWh), while an integrated anaerobic digestion-pyrolysis biorefinery raises fuel output 106% and cuts emissions 83%.
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
日本でも木質ペレットの輸入依存と国内残存バイオマス活用はFIT/FIP制度や地域脱炭素の論点と重なる。輸出向け資源の国内転換や遠隔地の熱転換は、日本の地域エネルギー政策・バイオマス産業都市構想への示唆が大きい。
In the global GX context
Adds multi-scale empirical evidence on residual biomass allocation relevant to global bioeconomy and hard-to-abate decarbonization debates. The export-vs-domestic feedstock tradeoff and phased remote-community transition pathway inform transition finance and just-transition planning beyond Canada.
👥 読者別の含意
🔬研究者:残存バイオマスのスケール横断評価手法と統合バイオリファイナリーの定量効果を参照できる。
🏢実務担当者:ペレット調達の国内転換や統合バイオ精製による燃料収率・排出削減の事業性判断に活用できる。
🏛政策担当者:バイオ燃料支援策と遠隔地熱転換の優先順位づけ、輸出資源の国内配分政策の設計に示唆を与える。
📄 Abstract（原文）
Residual biomass is a valuable renewable resource, as it avoids sustainability controversies and competition with food. Developing domestic market for abundant but underutilized residual biomass is vital for accelerating Canada’s decarbonization. This dissertation assesses residual biomass utilization strategies across national, regional and process scales under supply, demand, technical, economic and social constraints, aiming to provide decision-making insights for bioeconomy development. At the national scale, supply and demand constrained decarbonization potentials of residual biomass utilization pathways across sectors are assessed. Driven by strong policy support for liquid and gaseous biofuels, energy and fuel sector offers up to 55–64 MtCO₂-eq/yr of greenhouse gas (GHG) mitigation potential under full resource utilization, substantially higher than the voluntary market based chemical and material sector. Despite promising mitigation potential, residual biomass remains largely underutilized due to logistical and economic barriers, while marketable feedstock, wood pellet, continues to be exported overseas at ~3 Mt/yr. Redirecting export-oriented pellet supply towards domestic applications could support supply chain development and provide standardized feedstock for downstream production. Domestic opportunity for solid biofuel use may exist in remote off-grid regions that rely heavily on fossil fuels for electricity and heat. A regional-level system analysis on bioenergy options for remote communities suggests a phased transition pathway, highlighting the priority of heating transition with proven bioheat technologies in communities with high heating demand and using expensive fossil fuels, for both GHG (81–95% per MWh) and cost (21–74% per MWh) reduction. Although biomass combined heat and power could further reduce diesel reliance, its high capital cost, operational and maintenance complexity, and seasonal heat supply-demand mismatch limit its near-term applicability in small remote communities. As markets grow, potential mismatches between increasing demand and constrained feedstock availability highlight the necessity of improving utilization efficiency at the process level. A case study of an integrated anaerobic digestion-pyrolysis biorefinery demonstrates that system integration can increase overall fuel production by 106% and reduce GHG emissions by 83%, supporting its role in maximizing value recovery and decarbonization from limited feedstock. Overall, this dissertation develops multi-scale bioeconomy strategies to allocate and intensify residual biomass utilization to support Canada’s decarbonization targets.
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- openalex https://open.library.ubc.ca/media/download/pdf/24/1.0457009/3first seen 2026-11-10 04:43:43 · last seen 2026-11-13 04:53:04
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