ACS Sustainable Resource Management最新文献

{"title":"Equilibrium Studies of Biodiesel Ethyl Esters Prepared with a Potassium Glyceroxide Catalyst","authors":"Kyle McGuff,&nbsp;Dave Bradley,&nbsp;Minliang Yang and Aaron M. Socha*,&nbsp;","doi":"10.1021/acssusresmgt.4c0035110.1021/acssusresmgt.4c00351","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00351https://doi.org/10.1021/acssusresmgt.4c00351","url":null,"abstract":"<p >Biodiesel fuel is produced by the transesterification of triacylglycerides to alkyl esters using short chain alcohols, whereby ethanol represents a safe, sustainable substitute for methanol. Due to the inherent solubility of the resulting fatty acid ethyl esters (FAEE) in residual ethanol solvent, efficient phase separation of the postreaction mixture requires near anhydrous initial conditions. A recyclable catalytic system of 1:1 potassium glyceroxide:glycerol allowed for direct comparison of liquid–liquid phase equilibria between ethanol and methanol transesterification reaction experiments with increasing water content. A maximum water tolerance of 1.06 mol water:1 mol catalyst was observed for the ethanolysis reactions, representing a minimum of 4.6-fold greater anhydrous stringency as compared to methanolysis reactions. These results are supported by equilibrium calculations comparing methoxide, ethoxide, and glyceroxide concentrations at 0%, 80%, and 99% reaction completion. The catalyst system was applied to virgin soybean and recycled canola oils, and mass balances, including distilled product yields, are presented. Additionally, life cycle assessment revealed that biodiesel made from biobased ethanol and potassium glyceroxide resulted in approximately 20% reduction of greenhouse gases as compared to soybean methyl esters produced from sodium methoxide.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 1","pages":"89–97 89–97"},"PeriodicalIF":0.0,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143086358","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced Pyrolysis of Low to Medium Maturity Oil Shale with Lanthanide and Nitrogen Co-doped Carbon Quantum Dot Catalysts: Mechanistic Insights and Kinetic Implications","authors":"Li Wang,&nbsp;Ruiying Xiong,&nbsp;Jixiang Guo*,&nbsp;Chi Li,&nbsp;Xiangwei Chen,&nbsp;Wenlong Zhang and Chenhao Gao,&nbsp;","doi":"10.1021/acssusresmgt.4c0039710.1021/acssusresmgt.4c00397","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00397https://doi.org/10.1021/acssusresmgt.4c00397","url":null,"abstract":"<p >China’s abundant shale resources include a substantial proportion of low to medium maturity shales, which present significant extraction challenges due to high heating costs, slow pyrolysis rates, and low catalytic efficiencies. To address these issues, this study synthesizes a series of Ln-N/CQDs through a combustion method, including La/N-CQDs, Ce/N-CQDs, and Pr/N-CQDs. Kinetic analysis indicates that the addition of these catalysts reduces the average apparent activation energy required for oil shale pyrolysis. The activation energy decreases from 207.01 kJ/mol to 147.33, 172.78, and 144.94 kJ/mol, respectively. This reduction significantly enhances the pyrolytic capabilities of the organic matter within the shale. Employing molecular dynamics simulation and DFT calculations, the study investigates the impact of Ln-N/CQDs on the pyrolysis behavior of organic matter in oil shales and elucidates the catalytic mechanism. The research finds that electronic perturbations from lanthanide and adjacent heteroatom sites (C and N) alter electronic distribution, inducing charge redistribution. This facilitates efficient electron transfer from the catalyst to the reactive sites of organic molecules in the shale, forming reactive intermediates such as carbon cations. This process significantly lowers reaction barriers, alters pathways, and enhances catalytic efficiency. Overall, this study provides new insights and methodologies to improve the utilization efficiency of low to medium maturity oil shales, paving the way for the development of more effective extraction technologies.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 1","pages":"135–145 135–145"},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143086352","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First Volume of ACS Sustainable Resource Management in the Books: Celebrating a Year of Driving Innovation for a Sustainable Future","authors":"Michael KC Tam*,&nbsp;Peter Licence,&nbsp;Ivet Ferrer Marti,&nbsp;Say Chye Joachim Loo,&nbsp;Thalappil Pradeep,&nbsp;Milad Kamkar and Julio F. Serrano,&nbsp;","doi":"10.1021/acssusresmgt.4c0050810.1021/acssusresmgt.4c00508","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00508https://doi.org/10.1021/acssusresmgt.4c00508","url":null,"abstract":"","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"1 12","pages":"2511–2513 2511–2513"},"PeriodicalIF":0.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143126639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental and Economic Assessment of Wind Turbine Blade Recycling Approaches.","authors":"Evan G Sproul, Sherif A Khalifa, Brandon L Ennis","doi":"10.1021/acssusresmgt.4c00256","DOIUrl":"10.1021/acssusresmgt.4c00256","url":null,"abstract":"<p><p>Wind energy offers a low emission source of energy while also being among the cheapest forms of electricity generation in the United States. While most materials in a wind turbine can be recycled at the end of their life, large composite blades are often treated as waste, leading to potential strains on regional landfills, a loss of durable materials, and forfeiture of embodied energy. Numerous approaches exist for recycling composite wind blades at various levels of technological and commercial maturity. This study uses life cycle assessment to compare several promising recycling approaches as well as understand trade-offs between net greenhouse gas emissions and operational costs. Results include considerations for processing current glass-fiber blades with thermoset epoxy, upcoming decommissioned blades with carbon-fiber spar caps, and future blades constructed with recyclable resin systems. The optimal recycling processes for current glass-fiber blades are those with minimal processing emissions and costs, which are necessary to compete with the low costs and emissions associated with virgin glass-fiber production. For material streams with carbon fiber, the optimal processes are those that recover the highest-quality fiber, therefore recovering the largest possible portion of embodied emissions and high costs of carbon fiber. The results for recyclable resin systems are less certain but do reveal that these resins can reduce net greenhouse gas emissions and material waste from chemical recycling processes. These and other results display a promising future for wind turbine blade recycling, including many paths to further develop recycling technologies while increasing circularity, reducing emissions, and lowering operating costs.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 1","pages":"39-49"},"PeriodicalIF":0.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11770760/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental and Economic Assessment of Wind Turbine Blade Recycling Approaches","authors":"Evan G. Sproul*,&nbsp;Sherif A. Khalifa and Brandon L. Ennis,&nbsp;","doi":"10.1021/acssusresmgt.4c0025610.1021/acssusresmgt.4c00256","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00256https://doi.org/10.1021/acssusresmgt.4c00256","url":null,"abstract":"<p >Wind energy offers a low emission source of energy while also being among the cheapest forms of electricity generation in the United States. While most materials in a wind turbine can be recycled at the end of their life, large composite blades are often treated as waste, leading to potential strains on regional landfills, a loss of durable materials, and forfeiture of embodied energy. Numerous approaches exist for recycling composite wind blades at various levels of technological and commercial maturity. This study uses life cycle assessment to compare several promising recycling approaches as well as understand trade-offs between net greenhouse gas emissions and operational costs. Results include considerations for processing current glass-fiber blades with thermoset epoxy, upcoming decommissioned blades with carbon-fiber spar caps, and future blades constructed with recyclable resin systems. The optimal recycling processes for current glass-fiber blades are those with minimal processing emissions and costs, which are necessary to compete with the low costs and emissions associated with virgin glass-fiber production. For material streams with carbon fiber, the optimal processes are those that recover the highest-quality fiber, therefore recovering the largest possible portion of embodied emissions and high costs of carbon fiber. The results for recyclable resin systems are less certain but do reveal that these resins can reduce net greenhouse gas emissions and material waste from chemical recycling processes. These and other results display a promising future for wind turbine blade recycling, including many paths to further develop recycling technologies while increasing circularity, reducing emissions, and lowering operating costs.</p><p >This study characterizes wind turbine blade recycling processes to compare the most promising material recovery approaches and identify those with the most positive environmental impacts providing recommendations for various constituent material streams.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 1","pages":"39–49 39–49"},"PeriodicalIF":0.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acssusresmgt.4c00256","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143086092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Integrated Sulfation-Roasting-Leaching Process for Coextraction of Nickel and Cobalt from Laterite Ores with Enhanced SO3 Recovery","authors":"Zesen Zhao,&nbsp;Huiquan Li and Chenye Wang*,&nbsp;","doi":"10.1021/acssusresmgt.4c0043710.1021/acssusresmgt.4c00437","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00437https://doi.org/10.1021/acssusresmgt.4c00437","url":null,"abstract":"<p >The sulfation-roasting-leaching process can be used for processing laterite ore for recovery of Ni and Co. However, the low leaching efficiency of Ni and Co, high sulfuric acid consumption, and the emission of sulfur trioxide (SO₃) gas remain challenges. In this study, an integrated process for the co-roasting of limonitic and saprolitic laterite ore using the sulfation-roasting-leaching process was developed. The results demonstrated that SO₃ could successively react with goethite in limonitic laterite ore and lizardite in saprolitic laterite ore to convert the Ni and Co to water-soluble phases by controlling the co-roasting conditions and employing an appropriate method based on the different ionic potentials of trivalent and divalent metal ions. The leaching efficiencies of Ni and Co in laterite ore were 96.2% and 99.9%, respectively, with over 70% SO₃ recovery and approximately 60 wt % sulfuric acid consumption. This work presents a promising approach for the coextraction of Ni and Co from both limonitic and saprolitic laterite ores, and it holds immense potential for sustainable and economically viable Ni and Co extraction from a wide range of laterite ore deposits, contributing to the circular economy and fostering a greener future for battery metal production.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 1","pages":"201–211 201–211"},"PeriodicalIF":0.0,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143085743","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the Thermal and Mechanical Properties of Hydrolyzed-Collagen-Reinforced Poly(lactic acid) Composite Blown Films","authors":"Radhika Panickar,&nbsp; and ,&nbsp;Vijay K. Rangari*,&nbsp;","doi":"10.1021/acssusresmgt.4c0028210.1021/acssusresmgt.4c00282","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00282https://doi.org/10.1021/acssusresmgt.4c00282","url":null,"abstract":"<p >Poly(lactic acid) (PLA) is a biodegradable polyester polymer that is a promising material for replacing petroleum-based polymers in various applications. The present study investigates the mechanical and thermal properties of hydrolyzed collagen (HC) powder-reinforced biopolymer composite blown films. The biodegradable polymer PLA was reinforced with HC at different weight percentages (0.5%, 0.75%, 1%, and 1.25%) using the solution blending method in chloroform, followed by blown-film extrusion. Among different weight percentages of HC in the PLA matrix, 1 wt % HC reinforced with PLA blown films exhibited significant changes and improvements in the FTIR, XRD, TGA, and DSC analyses. A polymer blend formation from PLA and 1% HC was observed in XRD, FTIR, and Raman analyses, exhibiting chemical bonding of the amide group to the PLA backbone. It was understood that intermolecular interaction of the PLA and HC molecules was due to the inter-H bonds of the −NH, −OH, and −CH functional groups. The thermal behavior and crystallinity of the PLA/HC composite films were investigated using TGA and DSC. Compared with other film samples, PLA/1% HC exhibited a higher thermal stability of 360.29 °C. The tensile studies show significant enhancement in the flexibility with a high elongation strength of PLA/HC composite films compared to neat PLA films. The fracture analysis of PLA/1% HC confirms the interfacial compatibility and transformation to plastic deformation due to the chemical bonding of HC in the PLA matrix. The PLA/HC composite films exhibit UV barrier properties that are recommended for food packing applications.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 1","pages":"62–71 62–71"},"PeriodicalIF":0.0,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143085972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing Point-in-Space Continuous Monitoring System Sensor Placement on Oil and Gas Sites","authors":"Meng Jia*,&nbsp;Troy Robert Sorensen and Dorit Martina Hammerling,&nbsp;","doi":"10.1021/acssusresmgt.4c0033310.1021/acssusresmgt.4c00333","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00333https://doi.org/10.1021/acssusresmgt.4c00333","url":null,"abstract":"<p >We propose a generic, modular framework to optimize the placement of point-in-space continuous monitoring system sensors on oil and gas sites aiming to maximize the methane emission detection efficiency. Our proposed framework substantially expands the problem scale compared to previous related studies and can be adapted for different objectives in sensor placement. This optimization framework is comprised of five steps: (1) simulate emission scenarios using site-specific wind and emission information; (2) set possible sensor locations under consideration of the site layout and any site-specific constraints; (3) simulate methane concentrations for each pair of emission scenario and possible sensor location; (4) determine emissions detection based on the site-specific simulated concentrations; and (5) select the best subset of sensor locations, under a given number of sensors to place, using genetic algorithms combined with Pareto optimization. We demonstrate the practicality and effectiveness of our framework through its application to an oil and gas emission testing facility with a large search space of possible sensor locations; a setting which is computationally infeasible to solve with commonly used mixed-integer linear programming. Additionally, a case study illustrates the successful application of our algorithm to an operating oil and gas site, showcasing its real-world applicability and effectiveness.</p><p >We developed a sensor placement optimization framework for continuous monitoring systems for point-in-space methane emissions detection on oil and gas sites.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 1","pages":"72–81 72–81"},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acssusresmgt.4c00333","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143085261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CO2 Capture Using Nitrogen-Doped Porous Carbons Derived from Waste Printed Circuit Boards","authors":"Yuxin Liu,&nbsp;Jinfeng Zhang,&nbsp;Shuo Lin,&nbsp;George K. H. Shimizu and Uttandaraman Sundararaj*,&nbsp;","doi":"10.1021/acssusresmgt.4c0041710.1021/acssusresmgt.4c00417","DOIUrl":"https://doi.org/10.1021/acssusresmgt.4c00417https://doi.org/10.1021/acssusresmgt.4c00417","url":null,"abstract":"<p >We introduce a novel procedure to synthesize a novel CO₂ adsorbent from waste printed circuit boards. This innovative technique enables the production of nitrogen-rich porous carbon adsorbents at low activation temperatures, ranging from 400 to 500°C, compared to traditional processes that require activation temperatures exceeding 600°C when using KOH. By fine-tuning the activation temperature and modifying the proportion of reactants, namely, NaNH₂, to nonmetallic fractions, it is possible to customize both the pore architecture and the nitrogen levels in the adsorbent, thereby improving its CO₂ adsorption efficiency. The adsorbent, denoted as EN-450-2 (epoxy nitrogen-doped adsorbent activated at 450°C with a weight ratio of 2:1 NaNH₂:electronic waste nonmetal fraction), exhibits a remarkable surface area of 2270 m²/g. It demonstrates a CO₂ adsorption capacity of 5.17 mmol/g at 0°C and 1 bar and 3.14 mmol/g at 25°C and 1 bar. Comprehensive analysis indicates that a combination of factors such as pore structure (i.e., narrow micropore, surface area, and total pore volume) influences the CO₂ adsorption performance. At 1 bar pressure and 25°C, EN-450-2 exhibits exceptional CO₂/N₂ selectivity, moderate isosteric heat of adsorption, rapid adsorption kinetics, substantial dynamic CO₂ capture capacity, and enduring regeneration over five cycles. This work not only provides a sustainable solution to e-waste management but also contributes to global efforts in combating climate change through improved CO₂ capture.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 1","pages":"177–189 177–189"},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143084922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimizing Point-in-Space Continuous Monitoring System Sensor Placement on Oil and Gas Sites.","authors":"Meng Jia, Troy Robert Sorensen, Dorit Martina Hammerling","doi":"10.1021/acssusresmgt.4c00333","DOIUrl":"10.1021/acssusresmgt.4c00333","url":null,"abstract":"<p><p>We propose a generic, modular framework to optimize the placement of point-in-space continuous monitoring system sensors on oil and gas sites aiming to maximize the methane emission detection efficiency. Our proposed framework substantially expands the problem scale compared to previous related studies and can be adapted for different objectives in sensor placement. This optimization framework is comprised of five steps: (1) simulate emission scenarios using site-specific wind and emission information; (2) set possible sensor locations under consideration of the site layout and any site-specific constraints; (3) simulate methane concentrations for each pair of emission scenario and possible sensor location; (4) determine emissions detection based on the site-specific simulated concentrations; and (5) select the best subset of sensor locations, under a given number of sensors to place, using genetic algorithms combined with Pareto optimization. We demonstrate the practicality and effectiveness of our framework through its application to an oil and gas emission testing facility with a large search space of possible sensor locations; a setting which is computationally infeasible to solve with commonly used mixed-integer linear programming. Additionally, a case study illustrates the successful application of our algorithm to an operating oil and gas site, showcasing its real-world applicability and effectiveness.</p>","PeriodicalId":100015,"journal":{"name":"ACS Sustainable Resource Management","volume":"2 1","pages":"72-81"},"PeriodicalIF":0.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11770763/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143061832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}