Green Energy and Resources最新文献

{"title":"Progress in recyclable chemicals for sustainable ex-situ CO2 mineralisation","authors":"Song Zhou ,&nbsp;Liang Li ,&nbsp;Long Ji ,&nbsp;Baiqian Dai ,&nbsp;Ziliang Wang ,&nbsp;Emad Benhelal ,&nbsp;Nanthi S. Bolan ,&nbsp;Paul Feron ,&nbsp;Hai Yu","doi":"10.1016/j.gerr.2024.100087","DOIUrl":"10.1016/j.gerr.2024.100087","url":null,"abstract":"<div><p>The 21st century grapples with rising atmospheric CO₂ and anthropogenic solid waste. Ex-situ CO₂ mineralisation, converting CO₂ into stable carbonates via reacting with solid waste, shows great promise. However, concerns over the extensive consumption of chemicals urge sustainable and recyclable alternatives. This paper critically reviews recyclable chemicals for CO₂ mineralisation with various industrial solid wastes, and systematically examines their efficacy and reaction mechanisms. This study offers a comprehensive comparison of these chemicals and outlines clear future research directions.</p><p>The main findings are briefed below: first, we emphasize the pivotal role of trapping and recycling NH₃ gas for achieving effective and efficient CO₂ mineralisation using ammonium salts. Second, scaling up amines-based mineralisation could be feasible by replacing conventional strippers with mineralisation units. This transition is contingent upon resolving technical challenges such as amines' low leaching capacity and limited applicability to solid feedstocks that contain water-soluble Ca/Mg-bearing species. Third, leveraging their unique zwitterionic structures, amino acids may cater to diverse industrial needs and achieve a satisfactory CO₂ mineralisation efficiency with good recyclability at low temperatures. Fourth, a novel HCl regeneration technology known as ‘oxy-pyrohydrolysis,’ can achieve simultaneous CO₂ mineralisation and HCl regeneration in a single step. However, both amino acids-based mineralisation and oxy-pyrohydrolysis are nascent technologies requiring further research to ascertain their applicability and advance their development. Fifth, despite employing recyclable chemicals, operational costs of mineralisation could remain significant when high temperatures are used. Thus, energy optimization strategies should be explored, such as exploring low-energy consumption chemicals and integrating waste energy harvesting units. This review paper aims to delineate potential avenues for cost-effective CO₂ mineralisation facilitated by recyclable chemicals, thereby alleviating post-processing costs and environmental concerns associated with chemical residues.</p></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 3","pages":"Article 100087"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000419/pdfft?md5=102037f7b1fad8b96516ce12483e0293&pid=1-s2.0-S2949720524000419-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142136565","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":"Numerical simulation of the primary breakup of fuel jet with incoming positive velocity gradient","authors":"Tao Zhang ,&nbsp;Weimin Wang ,&nbsp;Zhenghuan Li ,&nbsp;Haijun Zhang ,&nbsp;Haiqiao Wei ,&nbsp;Rundong Li ,&nbsp;Chang Zhai","doi":"10.1016/j.gerr.2024.100090","DOIUrl":"10.1016/j.gerr.2024.100090","url":null,"abstract":"<div><p>To study the breakup process of fuel jets in air crossflow with a positive velocity gradient, the Volume of Fluid (VOF) method and adaptive grid technology are combined to simulate the two-phase flow of gas and liquid. A comparative analysis is conducted on the breakup and corresponding flow characteristics of direct fuel jets under uniform and positive velocity gradient airflow. The simulation results demonstrate that the morphological changes of the fuel column are caused by factors such as gas-liquid shear and asymmetric airflow vortices. The fuel jet undergoes primary breakup, which mainly contains columnar and surface breakup. The columnar breakup is dominated by Rayleigh-Taylor (R-T) instability, while the surface breakup is dominated by Kelvin-Helmholtz (K-H) instability. Compared with uniform flow, the expansion angle in the positive velocity gradient incoming flow increases by an average of 9.2%, and the wavelength of the surface wave increases by an average of 34%.</p></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 3","pages":"Article 100090"},"PeriodicalIF":0.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000444/pdfft?md5=1725ba92e07719fbc8a2ae45a507990a&pid=1-s2.0-S2949720524000444-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142148248","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":"Catalytic pyrolysis of biomass waste using montmorillonite-supported ultrafine iron nanoparticles for enhanced bio-oil yield and quality","authors":"Wenfei Cai ,&nbsp;Xiefei Zhu ,&nbsp;Reeti Kumar ,&nbsp;Zhi Zhu ,&nbsp;Jian Ye ,&nbsp;Jun Zhao","doi":"10.1016/j.gerr.2024.100085","DOIUrl":"10.1016/j.gerr.2024.100085","url":null,"abstract":"<div><p>The catalytic fast pyrolysis process is a promising method for converting biomass waste into bio-oil, where the catalyst plays a crucial role in determining the yield and quality of the products. In this study, ultrafine iron nanoparticles were incorporated onto a montmorillonite substrate through the pyrolyzing coordinated polymer method to enhance liquid fuel production via catalytic pyrolysis of biomass waste. The catalyst showed a uniform distribution of iron on the montmorillonite surface, indicating that the incorporation was successful. Catalytic pyrolysis led to an increase in liquid yields and a decrease in gas product yields compared to direct pyrolysis. The highest bio-oil yield obtained was 56.9% during the catalytic pyrolysis of corncob, which was found to be particularly well-suited for the production of bio-oil. Furthermore, the proposed reaction pathway was based on identifying the composition of the bio-oil, which was further supported by quantum chemical calculations of chemical bond strength and the likelihood of free radical attacks. These findings demonstrate the potential of using montmorillonite-supported ultrafine iron nanoparticles to enhance bio-oil yield and quality in biomass pyrolysis processes.</p></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 3","pages":"Article 100085"},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000390/pdfft?md5=b8271201bff2171c50d05df2930387cd&pid=1-s2.0-S2949720524000390-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141847510","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":"Calcium looping for CO2 capture and thermochemical heat storage, a potential technology for carbon neutrality: A review","authors":"Youhao Zhang ,&nbsp;Yuzhuo Wang ,&nbsp;Kuihua Han ,&nbsp;Jianli Zhao ,&nbsp;Jun Jie Wu ,&nbsp;Yingjie Li","doi":"10.1016/j.gerr.2024.100078","DOIUrl":"10.1016/j.gerr.2024.100078","url":null,"abstract":"<div><p>CO₂ emissions have posed numerous global challenges, leading to an increasing consensus on the need for carbon neutrality in future development. CO₂ capture and energy storage technologies represent a critical step in the carbon neutrality journey. Calcium looping (CaL), a promising technology for both CO₂ capture and energy storage, holds significant potential in future carbon neutral technology strategies. In this paper, a comprehensive review of the application of CaL in CO₂ capture and thermochemical heat storage (TCHS) is offered to inform further advancements in this field. Firstly, a brief overview and analysis of the fundamental technical routes and principles underlying of CaL for CO₂ capture and TCHS are provided. Then, the research progress in the development of CaL-integrated systems for CO₂ capture and TCHS is subsequently reviewed, with the existing limitations and outlining future prospects for further development highlighted. Additionally, a comprehensive summary of the proposed improvements in the performance of calcium-based materials is presented, focusing on enhancing carbonation reactivity in the multiple cycles and improving sunlight absorption performance of calcium-based materials. Finally, based on the current status of CaL development, insights and perspectives on potential avenues for further technological advancement are offered. Solar-driven CaL is a promising avenue for future CaL development, calling for greater research efforts on optimizing relevant equipment and enhancing calcium-based materials for sunlight-driven CaL systems. In addition, the CO₂ in-situ conversion in the calcination stage of CaL is also a great potential direction for technological evolution.</p></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 3","pages":"Article 100078"},"PeriodicalIF":0.0,"publicationDate":"2024-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000328/pdfft?md5=ba48df495869d97150db988868e4caf1&pid=1-s2.0-S2949720524000328-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141404499","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":"Development and utilization on green energy in marine powertrain: Challenges and opportunities","authors":"Hongliang Luo,&nbsp;Long Liu,&nbsp;Keiya Nishida,&nbsp;Weisheng Zhou","doi":"10.1016/j.gerr.2024.100076","DOIUrl":"https://doi.org/10.1016/j.gerr.2024.100076","url":null,"abstract":"","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 2","pages":"Article 100076"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000304/pdfft?md5=f23c10465cdfa39dbfd723eb784ac5a7&pid=1-s2.0-S2949720524000304-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141314252","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":"Hydrothermal co-carbonization of rice straw and acid whey for enhanced hydrochar properties and nutrient recovery","authors":"Yuxiang Zhao ,&nbsp;Taotao Lu ,&nbsp;Guochen Xu ,&nbsp;Yilun Luo ,&nbsp;Xianlong Zhang ,&nbsp;Xueping Wu ,&nbsp;Xiaozhao Han ,&nbsp;Jefferson W. Tester ,&nbsp;Kui Wang","doi":"10.1016/j.gerr.2024.100077","DOIUrl":"10.1016/j.gerr.2024.100077","url":null,"abstract":"<div><p>This study investigated rice straw hydrothermal carbonization (HTC) in water, optimizing operating conditions to enhance solid carbon content and nitrogen content in hydrochar. Additionally, we conducted hydrothermal co-carbonization (co-HTC) of rice straw and acid whey, achieving significant improvements in hydrochar properties. Co-HTC resulted in a 53.6% increase in HHVs, 20.0% higher yield, and a 42.7% rise in carbon content, accompanied by notable reductions in ash content. Nitrogen content increased by 26.0%, P content by 12.7 times, and K content by 27.6%. Analytical techniques revealed promising modifications, indicating potential applications of hydrochar in solid fuel or organic fertilizers, thus contributing to a circular bioeconomy in agricultural waste management.</p></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 2","pages":"Article 100077"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000316/pdfft?md5=e4aab717fdab5ec5de229b65638e7253&pid=1-s2.0-S2949720524000316-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141397038","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":"Overview of Chinese new energy vehicle industry and policy development","authors":"Jiamei Tian ,&nbsp;Ping Wang ,&nbsp;Daina Zhu","doi":"10.1016/j.gerr.2024.100075","DOIUrl":"https://doi.org/10.1016/j.gerr.2024.100075","url":null,"abstract":"<div><p>The Chinese new energy vehicle (NEV) industry has developed rapidly, which has become one of the largest NEV markets in the world. The Chinese government has played a pivotal role in supporting and promoting the NEV industry, leading to significant advancements in policies, technology, infrastructure, industrial chain, and market development. This support has been evident through the implementation of numerous favorable policies, including increased support in finance, taxation, and technology innovation, as well as initiatives to promote research, development, and application of NEV products. Furthermore, subsidy policies have been introduced to incentivize consumers to purchase NEVs and enhance their competitiveness in the market. Additionally, regulations mandating a certain proportion of NEV production and sales for automakers have been put in place, contributing to the widespread advancement of the Chinese NEV industry. While the Chinese NEV industry has seen substantial growth, it also faces challenges and opportunities. To further its development, it is essential for vehicle manufacturers to prioritize technological innovation, the government to continue introducing supportive policies, users to increase environmental awareness, and for collaboration between academia and industry to drive research efforts. The development of the Chinese NEV industry is not only in line with the global trend of environmental protection, energy security, and industrial transformation, but also an important link in promoting the progress of the global NEV industry.</p></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 2","pages":"Article 100075"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000298/pdfft?md5=49de21f88e2ad181ff568d0382043ca0&pid=1-s2.0-S2949720524000298-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141325689","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":"Development and applications of MgO-activated SiO2 system—achieving a low carbon footprint：A review","authors":"Yuan Jia ,&nbsp;Jingbin Zhang ,&nbsp;Yuxin Zou ,&nbsp;Qun Guo ,&nbsp;Min Li ,&nbsp;Tingting Zhang ,&nbsp;Chris Cheeseman","doi":"10.1016/j.gerr.2024.100072","DOIUrl":"10.1016/j.gerr.2024.100072","url":null,"abstract":"<div><p>The MgO-activated SiO₂ system demonstrates potential for a low carbon footprint throughout its lifecycle and is characterized by favorable mechanical properties, low alkalinity, and a high specific surface area, which shows promise in replacing traditional silicate cement in certain applications. The current system faces challenges such as slow early hydration rate, low early strength, and inadequate volume stability, which impede its further development and application. The MgO-activated SiO₂ system was improved and optimized through multiple tests using carbonation (CO₂ gas/NaHCO₃ solution), nanomaterials (whiskers), and fiber (organic/inorganic fiber) composite reinforcement. This paper provides an overview of the hydration mechanism of the MgO-activated SiO₂ system, explores modifications and control measures based on this mechanism, and discusses the potential applications and future development of the MgO-activated SiO₂ system.</p></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 2","pages":"Article 100072"},"PeriodicalIF":0.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000262/pdfft?md5=a2c09c274070a07f990414ba6e3cfb32&pid=1-s2.0-S2949720524000262-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140783448","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":"Green synthesis of ZnO nanoparticles and its application for methyl green dye adsorption","authors":"Segun Michael Abegunde ,&nbsp;Matthew Ayorinde Adebayo ,&nbsp;Emmanuel Folorunso Olasehinde","doi":"10.1016/j.gerr.2024.100073","DOIUrl":"https://doi.org/10.1016/j.gerr.2024.100073","url":null,"abstract":"<div><p>This research presents a facile and inexpensive method for synthesizing ZnO nanoparticles using <em>Nauclea latifolia</em> fruit extract as a bioreductant and stabilizer. The prepared particles were characterized using some analytical techniques, including X-ray diffraction (XRD) for crystallinity and phase identification, scanning electron microscopy (SEM) to study surface morphology, Fourier transform infrared (FTIR) spectroscopy for functional groups analysis, transmission electron microscopy (TEM) for grain size analysis, UV–Vis spectroscopy for optical properties, and Brunauer-Emmett-Teller (BET) for surface area analysis. XRD analysis revealed a hexagonal wurtzite structure with an average crystallite size of 14.40 nm. FTIR showed absorption peaks at 3659, 1341, and 460 cm⁻¹, corresponding to hydroxyl, carboxylic, and Zn–O, respectively. SEM image showed an agglomerated surface morphology with a flower-like shape. TEM estimated the particle size range to be 12.54–17.35 nm. UV–Vis scanning showed a broad peak at 373 nm. BET revealed 277.420 m²/g as the specific surface area. A batch adsorption experiment conducted on the performance of the nanoparticles for methyl green (MG) removal from aqueous solution showed highest efficiency of 99.96% at 60 min agitation time and pH of 7, with 0.05 g of the ZnO NPs, confirming the efficiency of the particles. The results of adsorption modelling revealed that the adsorption data were best fit to Freundlich isotherm and general-order kinetic models. Thermodynamic investigation confirmed the adsorption process as spontaneous, feasible, endothermic, and physical. Finally, the simplicity of the synthesis method and the performance evaluation of the ZnO nanoparticles indicate that an efficient and cost-effective adsorbent for MG recovery from aqueous solution has been successfully prepared.</p></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 2","pages":"Article 100073"},"PeriodicalIF":0.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000274/pdfft?md5=b0d59731e71d3de799d0c750beb69ded&pid=1-s2.0-S2949720524000274-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140645768","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":"Investigation on heat transfer performance of flat plate micro-heat pipe phase change heat storage/release device","authors":"Peiqin Dong ,&nbsp;Gang Wang ,&nbsp;Wan Yu ,&nbsp;Erwei Liu ,&nbsp;Yu Han","doi":"10.1016/j.gerr.2024.100071","DOIUrl":"https://doi.org/10.1016/j.gerr.2024.100071","url":null,"abstract":"<div><p>In the domains of low/zero carbon energy, the ship energy storage system, coupled with phase-change storage and release technology, holds significant importance. The utilization of a flat micro-heat pipe as the primary heat transfer element prompts the development of a test platform and a transient heat transfer model for the heat storage device. This is in response to existing challenges such as a single structure, poor temperature uniformity, and low thermal efficiency in current heat storage technology. The study delves into the impact of varying temperatures and flow rates of heat transfer fluids on the overall performance of heat storage devices and heat transfer efficiency. The findings highlight that the staggered double plate micro-heat pipe structure can enhance total heat storage by 11%, average heat storage power by 19%, and heat storage efficiency by 21% compared to the heat storage device with a single flat micro-heat pipe structure. It becomes evident that the heat storage device with the staggered double heat pipe structure outperforms its counterpart. Additionally, Temperature and flow velocity play pivotal roles in determining the heat transfer performance of phase change materials. As the temperature difference between the heat transfer fluid and the phase change material increases, both the phase transition rate and the equivalent Nusselt number also rise, providing a crucial foundation for examining the heat transfer characteristics of phase change materials during different stages of phase transition.</p></div>","PeriodicalId":100597,"journal":{"name":"Green Energy and Resources","volume":"2 2","pages":"Article 100071"},"PeriodicalIF":0.0,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949720524000250/pdfft?md5=6deede33d8226f36043bf6069a25e3b6&pid=1-s2.0-S2949720524000250-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140649911","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}