Carbon Resources Conversion最新文献

{"title":"Design and synthesis of novel ionic liquids with unique structures and excellent catalytic activity for transesterification","authors":"Dan Wang ,&nbsp;Zhentao Zhao ,&nbsp;Yuxin Wang ,&nbsp;Zhanguo Zhang ,&nbsp;Jinggang Zhao ,&nbsp;Peng Zheng ,&nbsp;Guangwen Xu ,&nbsp;Lei Shi","doi":"10.1016/j.crcon.2024.100264","DOIUrl":"10.1016/j.crcon.2024.100264","url":null,"abstract":"<div><div>A series of novel ionic liquids (ILs) with near-neutrality, moderate nucleophilicity, and zwitterionic structure were synthesized using a one-step method. Notably, these ILs could be successfully synthesized by activating 1-methylimidazole with carbonate, carboxylic, and oxalate esters. The structures and properties of the synthesized ILs were qualitatively and quantitatively analyzed using Fourier-transform infrared spectroscopy, ¹H/¹³C, nuclear magnetic resonance spectroscopy, thermogravimetry–mass spectrometry, and Hammett indicator. A mechanism was proposed for activating 1-methylimidazole, and the negative charge densities of the ILs were calculated. Considering MI-EC as an example, the best conditions for the synthesis of ILs were optimized reaction at 85 °C for 18 h, and the synthesis pathway was determined through density functional theory calculations. Herein, MI-EC exhibited excellent catalytic activity for transesterification reactions, and the corresponding ethylene carbonate (EC) conversion, dimethyl carbonate (DMC) yield, and turnover frequency (TOF) reached 50.4 %, 30.5 %, and 127.8 h⁻¹, respectively, with a catalytic reaction of only 30 min. Furthermore, the mechanism underlying the transesterification reaction catalyzed by MI-EC was investigated. The catalytic activity and structure of MI-EC remained unchanged after six reuses, demonstrating its better stability. In addition, MI-EC displayed a wide range of substrate universality, such as carbonates, oxalates, and acetic esters. Thus, this study not only provides a theoretical and practical support foundation for designing and synthesizing ILs, but also provides a new perspective for preparing alkaline catalysts.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 3","pages":"Article 100264"},"PeriodicalIF":7.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010418","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)00066-3","DOIUrl":"10.1016/S2588-9133(25)00066-3","url":null,"abstract":"","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 3","pages":"Article 100368"},"PeriodicalIF":7.5,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010419","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)00051-1","DOIUrl":"10.1016/S2588-9133(25)00051-1","url":null,"abstract":"","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 2","pages":"Article 100353"},"PeriodicalIF":6.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513881","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":"Fluidized bed two-stage O2/steam gasification of agricultural biomass for low-tar syngas: An industrial-scale verification test","authors":"Chao Wang ,&nbsp;Gang Song ,&nbsp;Mengjuan Zhang ,&nbsp;Kaixuan Yang ,&nbsp;Zhenglin Wang ,&nbsp;Xin Jia ,&nbsp;Qingya Liu ,&nbsp;Liguo Zhou ,&nbsp;Zhennan Han ,&nbsp;Shurong Wang ,&nbsp;Jianguo Bian ,&nbsp;Guangwen Xu","doi":"10.1016/j.crcon.2025.100342","DOIUrl":"10.1016/j.crcon.2025.100342","url":null,"abstract":"<div><div>In the complete green synthesis technology chain, bio-syngas production remains the “first hurdle”. Especially, the “tar” problem in biomass gasification urgently needs to be solved. Recently, our team, in collaboration with Jinan Huangtai Gas Stove Co., Ltd., completed a 10,000-ton industrial test and technical verification of fluidized bed two-stage O₂/steam gasification for production of syngas from biomass. The test results showed that the fluidized bed two-stage gasification was operated continuously and stably for over 110 h with various biomass feedstocks. Additionally, the lowest tar content in the produced gas reached 0.58 g/Nm³. The fly ash collected from the continuous test contained carbon of about 30 wt%. Thus, the technology was well proved for large-scale biomass gasification and production of syngas in terms of technical feasibility and operational stability.</div></div>","PeriodicalId":52958,"journal":{"name":"Carbon Resources Conversion","volume":"8 2","pages":"Article 100342"},"PeriodicalIF":6.4,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144329621","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":"2025-04-15","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":"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":"2025-04-15","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":"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":"2025-04-10","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":"2025-04-03","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}

{"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":"2025-04-02","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":"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":"2025-04-01","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}