持続可能で新規なバイオマス由来吸着材による燃焼後CO2回収：調製、キャラクタリゼーション、吸着性能評価
Sustainable and novel biomass‐derived adsorbents for post‐combustion carbon capture: Preparation, characterization, and adsorption performance studies (原題)
Maniarasu Ravi, Suneel Kumar, Krishna Kumar Pandey, Sudagar Subramanian
🤖 gxceed AI 要約
日本語
クルミ殻・稲わら・サトウキビバガスから低コストの活性炭を一段階同時炭化・化学賦活法で合成し、燃焼後CO2回収用吸着材として評価した。サトウキビバガス由来吸着材がBET表面積2489 m²/g、0℃・1 barでCO2吸着量6.69 mmol/gと最高性能を示し、物理吸着が支配的であることを確認した。農業残渣由来の吸着材が持続可能なCO2回収材料として有望であることを示す。
English
Low-cost activated carbons were synthesized from walnut shell, rice straw, and sugarcane bagasse via one-step carbonization and chemical activation for post-combustion CO2 capture. Sugarcane bagasse-derived adsorbent achieved the highest BET surface area (2489 m²/g) and CO2 uptake (6.69 mmol/g at 0°C, 1 bar), with physisorption confirmed as the dominant mechanism. Agricultural residues show strong potential as sustainable adsorbents for carbon capture.
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CCUSをGX推進の重点技術と位置づけ、火力発電所や産業排ガスからのCO2分離回収技術の実装を進めている。本論文は農業残渣を活用した低コスト吸着材という選択肢を示し、国内のCCUS実装やカーボンニュートラル戦略に資する基礎的知見を提供する。
In the global GX context
As global decarbonization accelerates, CCUS is central to hard-to-abate sectors and national net-zero strategies. This study advances low-cost, biomass-derived adsorbents for post-combustion capture, contributing to the broader transition finance and climate technology landscape by offering a sustainable materials pathway.
👥 読者別の含意
🔬研究者:バイオマス由来活性炭のCO2吸着性能と表面特性の関係を理解するための実証データを提供する。
🏢実務担当者:農業残渣を活用した低コストCO2回収材の可能性を評価する際の基礎情報として活用できる。
🏛政策担当者:CCUS技術の多様化と農業廃棄物利活用を組み合わせた政策設計の参考になる。
📄 Abstract（原文）
Abstract This study investigates the development of low‐cost biomass‐derived activated carbons from walnut shell (WS), rice straw (RS), and sugarcane bagasse (SB) for post‐combustion CO 2 capture via physical adsorption. A one‐step simultaneous carbonization and chemical activation approach is employed to synthesize the adsorbents. The prepared adsorbents are characterized using proximate and ultimate analyses, Brunauer–Emmett–Teller (BET)‐surface area analysis, Barrett–Joyner–Halenda (BJH)‐pore size distribution analysis, Scanning Electron Microscopy (SEM)‐surface morphology analysis, Fourier Transform Infrared Radiation Spectrometer (FTIR)‐surface functional group analysis, and Thermogravimetric Analysis (TGA)‐thermal stability techniques to evaluate their physicochemical and surface textural properties. The SBA adsorbent exhibited the highest BET surface area of 2489 m 2 g −1 and pore volume of 1.75 cm 3 g −1 , followed by WSA (1876 m 2 g −1 , 0.96 cm 3 g −1 ) and RSA (1584 m 2 g −1 , 0.78 cm 3 g −1 ). CO 2 adsorption experiments are conducted at temperatures ranging from 0 to 30°C and pressures up to 1 bar. Among the adsorbents, SBA achieved the highest CO 2 uptake capacity of 6.69 mmol g −1 at 0°C and 1 bar, while WSA and RSA achieved 6.16 mmol g −1 and 5.58 mmol g −1 , respectively. The superior adsorption performance of SBA is attributed to its enhanced porosity, larger surface area, and abundant active adsorption sites. Dynamic breakthrough studies further confirmed the higher adsorption capability of SBA with a breakthrough uptake of 0.89 mmol g −1 . The isosteric heat of adsorption values below 40 kJ mol −1 confirmed that the adsorption process predominantly followed physisorption behavior. The findings demonstrate that biomass‐derived activated carbons produced from agricultural residues possess excellent potential as sustainable and efficient adsorbents for post‐combustion carbon capture applications.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1002/ep.70654first seen 2026-09-11 05:04:19
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
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。