Carbon Resources Conversion最新文献

{"title":"Low-cost biomass ash-based adsorbent for removal of hydrogen sulfide gas","authors":"Kanathip Promnuan ,&nbsp;Rusmanee Ma ,&nbsp;Marisa Raketh ,&nbsp;Prawit Kongjan ,&nbsp;Saowapa Chotisuwan ,&nbsp;Rattana Jariyaboon","doi":"10.1016/j.crcon.2025.100327","DOIUrl":"10.1016/j.crcon.2025.100327","url":null,"abstract":"<div><div>This research aims to use boiler-biomass ash to produce low-cost and efficient adsorbent for removing hydrogen sulfide (H₂S) in biogas from small scale biogas plant. To reduce pressure drop across adsorbent bed during the practical adsorption, clay was selected as a binder to perform the extruded adsorbent. 15 different adsorbents using different proportion of ash to clay (70–90 %) together with the an amount of NH₄HCO₃ as pore-forming reagent (0–6 %), and baking temperature (100–500 °C) were prepared. From the breakthrough cure studies using fixed-bed column fed by 0.1 L/min synthetic H₂S containing gas, it was found that quadratic equation with R² 0.75 can be used to optimize adsorption preparation and predict H₂S adsorption capacity. The optimized adsorbent prepared using 79 % ash, and 2.5 % NH₄HCO₃ at 293 °C was validated and had achieved H₂S adsorption capacity of 3.67–3.88 mg/g. The characterization results, including BET surface area analysis and SEM imaging<strong><del>,</del></strong> show significant pore formation due to the presence of NH₄HCO₃. CHNS/O SEM-EDX, and XRF analyses confirmed that there wasan increase in sulfur content of the post-adsorbent. The decrease in surface area and change of functional groups in FTIR spectrum of the spent adsorbent, and presence of metal elements supporting the chemisorption mechanism were also discovered. The best fitted breakthrough curve operated at 200–10,000 ppm H₂S containing gas to Thomas model which could be implemented for further scaling up are also proposed. This is a successful attempt to use an abundance industrial waste, eco-friendly local material and novel pore forming agent in order to create an eco-efficient adsorbent for H₂S removal.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 4","pages":"Article 100327"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Progressive adaptation of microalgae consortium to elevated carbon dioxide coupled with enhanced production of essential fatty acids","authors":"Alston Bernard D’Souza ,&nbsp;Atiqur Rahaman ,&nbsp;Khandaker Asif Ahmed ,&nbsp;Elena Adaschewski ,&nbsp;Dieter Hanelt ,&nbsp;Abdelfatah Abomohra","doi":"10.1016/j.crcon.2025.100330","DOIUrl":"10.1016/j.crcon.2025.100330","url":null,"abstract":"<div><div>This study investigated the possible adaptation of a microalgae consortium to elevated carbon dioxide (CO₂) concentrations reaching up to 50 % <em>v/v</em> in a lab-scale photobioreactor (PBR). Results showed a significant reduction in the growth rate of the consortium with increasing CO₂ supplementation, from 1.327 d^-1 in the initial culture without CO₂ supplementation to 0.369 d^-1 at 50 % CO₂. At the lowest applied CO₂ supplementation of 10%, the growth rate was 0.735 d^-1. Interestingly, supplementation of 40% CO₂ in the final run showed insignificant difference in the growth rate of the consortium compared to that at 10% CO₂. Microbial community analysis revealed a shift towards bacterial genera that enhance the microalgal growth, while some algal genera (mainly <em>Tetradesmus</em> and <em>Chlorella</em>) became more dominant under CO₂ enrichment. Compared to the initial consortium, the proportion of polyunsaturated fatty acids (PUFAs) increased from 36.2% to 58.1% under 40% CO₂, mainly due to the increase in the proportion of essential fatty acids (EFAs) such as alpha-linolenic acid (ALA) and linoleic acid (LA). Under 40% CO₂ supplementation, an increase in cell size was observed, despite a reduction in cell number. This study highlights the potential of microalgae consortia to adapt to high CO₂ levels, leading to a dominance of certain algal genera. This adaptation improves the production of EFAs, thereby contributing to both environmental sustainability and industrial applications.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 4","pages":"Article 100330"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D-porous activated carbon morphological modification of Manihot esculenta tuber and Bambusa blumeana stem for high-power density supercapacitor: Biomass waste to sustainable energy","authors":"Markus Diantoro ,&nbsp;Nuviya Illa Muthi Aturroifah ,&nbsp;Ishmah Luthfiyah ,&nbsp;Joko Utomo ,&nbsp;Ida Hamidah ,&nbsp;Brian Yuliarto ,&nbsp;Andrivo Rusydi ,&nbsp;Santi Maensiri ,&nbsp;Worawat Meevasana","doi":"10.1016/j.crcon.2025.100313","DOIUrl":"10.1016/j.crcon.2025.100313","url":null,"abstract":"<div><div>Activated carbon derived from biomass is an environmentally friendly and low-cost supercapacitor electrode material. The diverse morphology and pore shape of activated carbon have a significant impact on enhancing the storage capacity of supercapacitors. However, the disparate distribution of pore sizes in activated carbon has a negative effect on energy density. In the present study, the synthesis and modification of the carbon pore structure of <em>Manihot esculenta</em> tuber and <em>Bambusa blumeana</em> stem was carried out using a sonochemical-assisted hydrothermal method with various chemicals (0.06 M KOH, 0.06 M PVP, 0.06 M ZnCl₂). The 3D pore structure of the sample modified with 0.06 M ZnCl₂ exhibited a well-defined microporous architecture and a substantial specific surface area of 516.29 m²g⁻¹, leading to excellent electrochemical performance in coin cell supercapacitors. A high power density of 1086.12 Wkg⁻¹ at a voltage window of 2 V has been attained, with a corresponding current density of 0.3 Ag⁻¹. Remarkably, after 5000 charge and discharge cycles, the capacitance retention was maintained at 90.8 %. The high power density produced from biomass activated carbon based on <em>Manihot esculenta</em> tuber and <em>Bambusa blumeana</em> stem modified using 0.06 M ZnCl₂ provides a practical approach for environmentally friendly electrical energy storage devices and realizes rapid mass transportation.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 4","pages":"Article 100313"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing hydraulic retention time for methane production from the hydrogenic effluent left over from the co-digestion of vinasse and spent brewer's yeast cell","authors":"Chatchawin Nualsri ,&nbsp;Chakkrit Sreela-or ,&nbsp;Punnada Tharangsri ,&nbsp;Worapong Wongarmat ,&nbsp;Alissara Reungsang ,&nbsp;Sureewan Sittijunda","doi":"10.1016/j.crcon.2025.100328","DOIUrl":"10.1016/j.crcon.2025.100328","url":null,"abstract":"<div><div>This study aims to optimize the hydraulic retention time (HRT) for the methane production from hydrogenic effluent derived from the co-digestion of vinasse and spent brewer's yeast cells. The experiments were conducted in a continuous stirred tank reactor (CSTR) at various HRTs ranging from 60 to 5 days. The results showed that optimal performance was achieved at HRT 10 days. Under this HRT, yielding a maximum methane production rate of 853.6 mL/L·d and a<!--> <!-->methane yield of 304.9 mL/g-VS, with a COD removal efficiency of 53.86 %. The microbial community analysis revealed distinct patterns across different HRTs, with shorter HRTs (5–15 days) dominated by Bathyarchaeia-related taxa and Thermoplasmatota, while longer HRTs (30–60 days) showed the<!--> <!-->predominance of traditional methanogenic archaea within the Euryarchaeota phylum. The methane production process involved both acetoclastic and hydrogenotrophic pathways, with enhanced efficiency observed under shorter HRTs where both pathways coexisted. The greenhouse gas reduction potential analysis revealed that implementing this process could potentially reduce emissions by 1,026,206 tCO₂eq/year through the substitution of fossil fuel-based electricity with methane-derived power.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 4","pages":"Article 100328"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Self-pillared hierarchical Silicalite-1 zeolites for enhanced Suzuki-Miyaura coupling reactions","authors":"Xicheng Jia ,&nbsp;Jianxin Liu ,&nbsp;Yuming Zhang ,&nbsp;Dahong Jiang","doi":"10.1016/j.crcon.2025.100331","DOIUrl":"10.1016/j.crcon.2025.100331","url":null,"abstract":"<div><div>The Suzuki coupling reaction is a widely employed technique for the synthesis of biaryl compounds in various disciplines. This study introduces the development of a highly efficient and recyclable palladium-doped Silicalite-1 (S-1) catalyst featuring a hierarchical structure, which enhances the efficacy of Suzuki coupling reactions. By utilizing tetra-n-butylphosphonium hydroxide as a structure-directing agent and adjusting the molar ratios of ethanol and water in the synthetic precursor, we successfully produced a range of porous S-1 catalysts. These catalysts displayed a unique architecture characterized by interconnected thin pillars or lamellae. The catalyst’s remarkable specific activity facilitated rapid Suzuki coupling reactions, completing within just three hours under environmentally benign conditions. The Suzuki reaction mechanism was discussed, which involves an oxidative addition of bromobenzene to heterogeneous Pd, followed by metal exchange with phenyl boronic acid and completed by a reductive elimination. Comprehensive substrate screening, selectivity assessments, and recycling studies were also undertaken.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 4","pages":"Article 100331"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Outside Back Cover","authors":"","doi":"10.1016/S2588-9133(25)00085-7","DOIUrl":"10.1016/S2588-9133(25)00085-7","url":null,"abstract":"","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 4","pages":"Article 100387"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145418066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced performance of gasification by blending coal into biomass in a fluidized bed two-stage system","authors":"Chao Wang ,&nbsp;Hanyang Li ,&nbsp;Mengjuan Zhang ,&nbsp;Zhenglin Wang ,&nbsp;Zhennan Han ,&nbsp;Xin Jia ,&nbsp;Gang Song ,&nbsp;Kaixuan Yang ,&nbsp;Guoqing Guan ,&nbsp;Guangwen Xu","doi":"10.1016/j.crcon.2025.100333","DOIUrl":"10.1016/j.crcon.2025.100333","url":null,"abstract":"<div><div>Biomass, blended with a small amount of coal, was fed into a fluidized bed two-stage gasifier to produce low-tar H₂-rich gas through O₂-rich gasification. The blended coal improved the energy density of biomass fuel and also worked as the bed material. For the fluidized bed two-stage gasification, large char particles of biomass and coal tend to accumulate at the bottom of the gasifier (a riser) to form a carbon-rich reaction zone there. Then, the O₂ coming from the bottom of the gasifier mainly reacts with such char, consequently suppressing its interaction with the gases including H₂ from pyrolyzer. Using O₂-rich air with an ER of 0.35 and at gasification temperatures of about 890 °C, gasifying biomass blending 10 wt% coal produced gas containing 13.3 vol% CO, 20.1 vol% CO₂, 4.3 vol% CH₄, and 9.8 vol% H₂, giving an LHV of 4.9 MJ/Nm³_d. Tar content in the produced gas gradually decreased with time, and over the last 6 h the measured content was 0.012 g/Nm³_d. Steady operation was well achieved, showing the performance without ash agglomeration for the O₂-rich gasification of biomass.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 4","pages":"Article 100333"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regulating metal–acid active sites in hierarchical porous Ni/Y for selective hydrocracking of naphthalene","authors":"Xiaoyang Kong ,&nbsp;Jinlin Mei ,&nbsp;Zhentao Liu ,&nbsp;Yutong Zou ,&nbsp;Enhua Wang ,&nbsp;Wei Wang ,&nbsp;Chunya Wang ,&nbsp;Chunming Xu ,&nbsp;Xilong Wang","doi":"10.1016/j.crcon.2025.100326","DOIUrl":"10.1016/j.crcon.2025.100326","url":null,"abstract":"<div><div>The preparation of high efficiency hydrocracking (HCK) catalyst is the key to the production of BTX (benzene, toluene and xylene) from polycyclic aromatic hydrocarbons (PAHs). In this work, the recrystallized Y zeolite (RCY) was obtained by structural reorganization of the microporous parent Y zeolite (PY), and a series of Ni/RCY catalysts with different metal–acid active sites were prepared by ethylenediamine coordination impregnation, which were used for the BTX production by hydrocracking of naphthalene. The suitable acidity and hierarchical pore structure of Ni/RCY could promote the dispersion of Ni metal, thus forming small-sized nanoparticles, which is in favor of the accessibility and diffusion of naphthalene. Besides, the electron-deficient Ni species between adjacent acid sites and metals could be generated on Ni/RCY, which could improve the metal-support interaction (MSI) and catalytic activity. Ni/RCY-4 catalyst showed the superior hydrocracking conversion (99.7 %), BTX yield (39.1 %), the reaction rate constant (k, 3.1 h⁻¹) and turnover frequency (TOF, 16.6 h⁻¹) of selective hydrocracking. The activation energy was lowest (64.1kJ·mol⁻¹) among the reported catalysts in the literature. Moreover, the possible reaction mechanism of selective hydrocracking of naphthalene to BTX was further proposed.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 4","pages":"Article 100326"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145223016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption of heavy metals from water using teak-based carbon material through graft copolymerization","authors":"Jin-Wei Zhang ,&nbsp;Nguyen Duy Hai ,&nbsp;Muhammad Al Kholif ,&nbsp;Huan-Ping Chao","doi":"10.1016/j.crcon.2025.100332","DOIUrl":"10.1016/j.crcon.2025.100332","url":null,"abstract":"<div><div>This study presents the development of carbonaceous adsorbents derived from teak wood waste for the removal of heavy metals, such as lead (Pb²⁺), copper (Cu²⁺), and cadmium (Cd²⁺) from aqueous solutions. The adsorbents − hydrochar (TH), biochar (TB), and activated carbon (TAC) − were synthesized through thermal and chemical activation processes and further enhanced by graft copolymerization using acrylic acid. Comprehensive characterizations, including SEM, EDS, XPS, BET, and FTIR, revealed that grafting significantly increased surface functional groups (COOH and OH), thereby improving adsorption capacities. Adsorption isotherms followed the Langmuir model, indicating a chemisorption mechanism dominated by ion exchange and complexation. Post-grafting, maximum adsorption capacities for Pb²⁺ increased from 116 mg/g (TH) to 294 mg/g (THG), Cu²⁺ from 84 mg/g (TH) to 164 mg/g (THG), and Cd²⁺ from 106 mg/g (TH) to 170 mg/g (THG). The study concludes that grafted teak-based materials hold high potential as cost-effective and efficient adsorbents for water purification applications, contributing to sustainable waste management and environmental protection.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 4","pages":"Article 100332"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bio-based papers from seaweed and coconut fiber: sustainable materials for a greener future","authors":"Nida Khan ,&nbsp;K. Sudhakar ,&nbsp;R. Mamat","doi":"10.1016/j.crcon.2025.100329","DOIUrl":"10.1016/j.crcon.2025.100329","url":null,"abstract":"<div><div>The paper industry’s reliance on deforestation for wood pulp has raised environmental concerns and led to fluctuating prices. This study explores the potential of seaweed (<em>Sargassum wightii</em>) and coconut waste, abundant in Malaysia, as sustainable alternatives for biopaper production. These materials offer a promising solution to mitigate deforestation, address waste issues, and promote sustainable manufacturing. Three biopaper samples were fabricated using 100 % seaweed, 100 % coconut fiber, and a 50/50 blend of seaweed and coconut fiber. The blending of seaweed and coconut fiber allows for customising biopaper properties, such as density and flexibility, making it suitable for a broader range of applications. To characterise these biopapers, scanning electron microscopy (SEM), thermogravimetric analysis (TGA), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) were employed. Additionally, the grammage (GSM) of each biopaper was determined to compare it with traditional wood pulp-based paper to explore its potential applications. FTIR analysis revealed a wide peak between 3343.47 cm⁻¹ and 3355.75 cm⁻¹ in all samples, confirming the existence of O–H bonds often observed in alcohols. TGA examination at 900 °C demonstrated considerable char production, with the seaweed-based bio paper yielding the most char (26.6 %), followed by the coconut-based paper (15.17 %) and the seaweed-coconut mix (13.49 %). The XRD examination indicates that the structure is largely amorphous, with broad peaks in the 2θ range of 11° to 23°. Water absorption test showed that all biopaper samples were hydrophilic; absorption rates for seaweed-based biopaper were 128 g/m², coconut-based biopaper was 580 g/m², and the mix of seaweed and coconut was 446 g/m². High biodegradability was demonstrated by soil burial tests, which indicated weight reductions of 23 %, 57 %, and 64 % for the blended biopaper, seaweed, and coconut after 14 days, respectively. These results highlight <em>Sargassum wightii</em>’s potential as a sustainable biopaper material. When mixed with coconut fiber waste, it can increase density and broaden its possible applications, providing a viable alternative to wood-based papers while also encouraging environmental sustainability.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 4","pages":"Article 100329"},"PeriodicalIF":7.5,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}