Economic and Environmental Impact of Water and Biomass Resources for Hydrogen Production in South Africa
南アフリカにおける水素製造のための水とバイオマス資源の経済的・環境的影響 (AI 翻訳)
Mboneni Charity Mbengwa, Emmanuel Kweinor Tetteh, Sudesh Rathilal
🤖 gxceed AI 要約
日本語
本研究は、南アフリカにおける再生可能エネルギー由来の電気分解（水ベース）とバイオマスガス化による水素製造経路を比較。調和されたシステム境界と機能単位（1kg H2、純度99.97%）の下で、技術効率と環境影響（地球温暖化係数、水消費、土地利用、酸性化、累積エネルギー需要、重要鉱物フットプリント）を評価。さらに、水準化水素コスト（LCOH）を含む経済的要因と、水素・持続可能エネルギーを支援する政策イニシアチブを検討。結果は、再生可能エネルギー電気分解の気候便益とバイオマスガス化の環境課題（水使用、排出）を対比し、資源活用と展開課題のトレードオフを明らかにする。
English
This study compares hydrogen production pathways in South Africa: renewable-powered electrolysis (water-based) and biomass gasification. Using harmonized system boundaries and a functional unit of 1 kg H2 at 99.97% purity, it evaluates technological efficiency and environmental impacts (GWP100, water consumption, land use, acidification, cumulative energy demand, critical minerals footprint). Economic factors like Levelized Cost of Hydrogen (LCOH) and policy initiatives supporting hydrogen are also examined. Findings highlight trade-offs: renewable electrolysis offers climate benefits, while biomass gasification faces water use and emission challenges.
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
南アフリカの水素戦略と政策文脈に焦点を当てており、日本の水素基本戦略やアジア向け水素サプライチェーン構想と比較する上で参考になる。ただし、日本固有の制度や規制との直接的な関連は薄い。
In the global GX context
This paper provides a comparative LCA of hydrogen pathways in a developing country context, relevant for global hydrogen economy discussions. It offers insights into resource trade-offs and policy integration, which can inform international frameworks like the Hydrogen Council and IPHE.
👥 読者別の含意
🔬研究者:Provides a comprehensive LCA comparison of water electrolysis and biomass gasification for hydrogen production, with detailed environmental and economic metrics.
🏢実務担当者:Useful for evaluating hydrogen production pathways in resource-constrained settings, highlighting trade-offs between renewable electrolysis and biomass.
🏛政策担当者:Offers evidence on policy support for hydrogen in South Africa, relevant for designing national hydrogen strategies in developing economies.
📄 Abstract（原文）
This study compares hydrogen production pathways from water—using renewable-powered electrolysis (alkaline, water-based)—and biomass (gasification), under harmonized system boundaries and a common functional unit of 1 kg H2 at 99.97% purity. It examines technological efficiency and environmental impacts, including cradle-to-gate Life Cycle Assessments (LCAs) of each pathway, focusing on global warming potential (GWP100), water consumption, land use, acidification, cumulative energy demand, and the critical minerals footprint. The analysis highlights the roles of water electrolysis and biomass gasification within South Africa’s energy landscape, considering the integration of renewable electricity, energy quality, and co-product allocation. Economic factors, such as the Levelized Cost of Hydrogen (LCOH), are evaluated alongside environmental indicators. The study emphasises the environmental challenges of biomass gasification, notably water use and emissions, and contrasts these with the climate benefits of renewable-powered electrolysis. It also reviews policy initiatives and government programs that support hydrogen and sustainable energy in South Africa, aligning with the SDGs. Overall, the findings underscore the trade-offs in hydrogen development, emphasising opportunities for resource utilisation while addressing deployment challenges.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/hydrogen7020048first seen 2026-05-05 19:12:21
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。