持続可能なCO₂回収に向けたマイクロ・メソ多孔質炭素の技術経済評価と最適化
Techno-economic and Optimization of Micro and Meso-porous Carbons for Sustainable CO₂ Capture (原題)
Maghraby ME, Ghallab AO, Abdelmonem NM, Abdelnaby MM
🤖 gxceed AI 要約
日本語
塩化シアヌル系ポリマーとポリマー由来多孔質炭素を合成し、KOH賦活条件（温度600〜900℃、比率1:1〜4:1）を最適化した。900℃・比率1:1で比表面積1969 m²/g、CO₂吸着量1.85 mmol/g、選択性2344を達成。技術経済評価では窒素・純水などのユーティリティ費が生産コストを支配し、900℃・1:1が単位面積当たり最低コスト（$0.74/m²）と最高性能を両立した。
English
The study synthesizes cyanuric chloride-based polymer and polymer-derived porous carbon, optimizing KOH activation temperature (600–900°C) and ratio (1:1–4:1). The best sample (PPC-900-1) achieves 1969 m²/g surface area, 1.85 mmol/g CO₂ uptake, and selectivity of 2344. A techno-economic assessment shows utility costs (N₂, DI water) dominate production cost, and 900°C at 1:1 yields the lowest cost per unit area ($0.74/m²) with best performance.
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
CCUSは日本のGX推進戦略・グリーン成長戦略で重点分野とされ、次世代の固体吸着材コスト最適化は国内CCUS実装の経済性検討に資する。
In the global GX context
Solid sorbents are a key lever for next-generation pre-combustion carbon capture; this techno-economic framing informs cost benchmarking relevant to CCUS deployment under global net-zero pathways and transition finance for hard-to-abate sectors.
👥 読者別の含意
🔬研究者:多孔質炭素吸着材の賦活条件とコスト・性能トレードオフの定量データを提供する。
🏢実務担当者:CCUS導入検討時の固体吸着材コスト構造（ユーティリティ費支配）の理解に有用。
🏛政策担当者:CCUS技術のスケールアップ支援策を検討する際のコスト要因把握に参考となる。
📄 Abstract（原文）
<title>Abstract</title> <p>Recently, carbon capture is very important to reduce the emissions of greenhouse gas. Conventional amine-based methods face limitations from high regeneration energy demand and toxic by-products, solid sorbent materials offer a promising alternative. In this study, cyanuric chloride-based polymer (CCP) and polymer-based porous carbon (PPC) are synthesized via solvothermal method and pyrolysis method; respectively. Potassium hydroxide (KOH) used as activating agent during pyrolysis process at activation temperatures ranging (600 – 900 °C) and KOH:polymer ratios varying from 1:1 to 4:1. The characterization of BET surface area shows that PPC synthesized at 900 °C and KOH:polymer ratio of 1:1 (PPC-900-1), gives the highest surface area of 1969 m²/g compared to 60 m²/g for CCP. The structure of all synthesized materials using PXRD and FTIR. Thermal stability is applied using TGA and the morphology analyzed using SEM and EDX. In terms of carbon capture application, PPC-900-1 provides moderate CO₂ uptake of 1.85 mmol/g at 298 K and 1 bar, and good selectivity of 2344 for 5% CO₂/H₂ mixture. These findings demonstrate that PPC-900-1 is a promising sorbent for CO₂ capture in the next-generation pre-combustion technology. A techno-economic assessment showed that utility requirements (nitrogen and deionized water) dominate production costs ($1327/kg), far exceeding chemical ($45.92/kg) and energy inputs ($89/kg). The operating conditions contribute hugely on the production cost of the porous carbon materials. Although lower activation temperatures and higher KOH ratios reduced the overall cost per kilogram, synthesis at 900 °C and KOH ratio of 1:1 achieved the lowest cost per unit area ($0.74/m²) while delivering the best material performance. This highlights the necessity of balancing cost efficiency with material performance to advance the scalability of porous carbon synthesized sorbent material used in pre-combustion carbon capture.</p>
🔗 Provenance — このレコードを発見したソース
- Research Square https://doi.org/10.21203/rs.3.rs-11707709/v1first seen 2026-11-14 04:23:06
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