Article
Energy & Fuels
Gamzenur Ozsin, Esin Apaydin-Varol, Murat Kilic, Ayse E. Putun, Ersan Putun
Summary: Pyrolysis of petroleum sludge is a promising method for energy production from solid waste, requiring prediction of thermal decomposition behavior for modeling. This study focused on developing a systematic methodology to calculate kinetics and thermodynamics of oil sludge pyrolysis. The findings on evolved gases and kinetic and thermodynamic parameters can enhance the utilization of this residue in refinery applications.
Article
Environmental Sciences
Sanjay Singh, Trilok Patil, Shyam P. Tekade, Manoj B. Gawande, Ashish N. Sawarkar
Summary: The study investigated the thermal response, kinetics, reaction mechanism, and thermodynamic analysis of pyrolysis and co-pyrolysis of corn cob and polyethylene, revealing the synergistic effect in the co-pyrolysis process. The results provided valuable insights into key kinetic parameters and synergistic effects during co-pyrolysis, serving as practical references for the design of reactor systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Green & Sustainable Science & Technology
V. Karuppasamy Vikraman, G. Boopathi, D. Praveen Kumar, R. Mythili, P. Subramanian
Summary: The study focused on the thermal degradation pattern and pyrolytic kinetics of milk dust powder (MDP), revealing its potential suitability as a candidate for energy conversion through pyrolysis.
Article
Chemistry, Physical
Ibrahim Dubdub
Summary: This paper aims to investigate the kinetics of polypropylene (PP) polymer pyrolysis using thermogravimetric analysis (TGA). The results show that the activation energy values for PP polymer pyrolysis at different conversions are in good agreement with the values obtained from four model-free methods. Additionally, the most controlling reaction mechanism identified using Criado's method is the geometrical contraction models-cylinder model.
Article
Energy & Fuels
Deodatus Kazawadi, Justin Ntalikwa, Godlisten Kombe
Summary: The study investigated the co-pyrolysis of low ash content of coconut shell, cashew nuts shells, and high ash content rice husk blends using thermal gravimetric analysis (TGA). The results showed that blending low ash content biomass with high ash content biomass can significantly reduce the operating temperature and activation energy.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2022)
Article
Thermodynamics
Qing He, Chen Cheng, Xinsha Zhang, Qinghua Guo, Lu Ding, Abdul Raheem, Guangsuo Yu
Summary: In this study, the pyrolysis process of low-ash coal and high-ash coal was investigated, revealing the pyrolysis mechanism of coal, non-isothermal kinetics, and the interaction between minerals and organics. The findings showed that coal pyrolysis occurs in two steps, and high-temperature inner minerals can promote graphitization. After demineralization, the distribution of pyrolysis activation energy becomes more concentrated.
Article
Engineering, Chemical
Anjana P. P. Anantharaman, Chalamala Jaya Prakash, Osipalli Bangarraju, Tamilmani Jayabalan
Summary: The pyrolysis characteristics of algae biomass from local source in the presence of HZSM-5 catalyst were studied using Thermogravimetric analyzer (TGA). The multi-component dissociation stages of carbohydrates, proteins, lipids, and other components in the algae sample were confirmed at various temperature conditions through the multi-step DTG curve analysis. The activation energy and pre-exponential factor of the pyrolysis reaction were analyzed using isoconversional integral methods, showing consistent results with the kinetic and thermodynamic properties.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Green & Sustainable Science & Technology
Tanveer Rasool, Vimal Chandra Srivastava, Pratik Toshniwal, Ishfaq Najar, Vikash Singh
Summary: This study evaluated the kinetic and thermodynamic parameters of co-pyrolysis of wood pellets and petroleum coke blends. It was found that the reaction order increases with increasing heating rate, and the average activation energy was calculated to be 119.6 kJ mol-1 (OFW) and 126.2 kJ mol-1 (KAS). The values for ΔH, ΔG, and ΔS were consistent with previous studies, and ΔG was observed to be around 182 kJ mol-1. The study also identified the mechanisms of diffusion and chemical reaction during the thermal degradation process.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Polymer Science
Ibrahim Dubdub, Mohammed Al-Yaari
Summary: Plastic waste generation has increased significantly over the past 70 years, with more than 50% of municipal plastic waste being composed of PS, PP, and LDPE products. A kinetic model has been developed to describe the thermal decomposition of plastic mixtures, contributing to efficient plastic waste management. Different isoconversional models were used to obtain kinetic parameters, with Coats-Redfern model being the most suitable for determining reaction mechanisms.
Article
Thermodynamics
Fangjun Chen, Fengxia Zhang, Shiliang Yang, Huili Liu, Hua Wang, Jianhang Hu
Summary: This study comprehensively investigated the pyrolysis kinetics and product characteristics of rubber seed oil, finding that a 1.5-order reaction can well explain the pyrolysis process and different models yield significantly different results in calculating the apparent activation energy.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Agricultural Engineering
Sonalben B. Prajapati, Alok Gautam, Shina Gautam
Summary: In this study, the pyrolysis of Printed circuit boards (PCBs), Cotton Stalk (CS), and their different compositions were analyzed using thermogravimetric analysis. The results showed that co-pyrolysis can reduce the production of phenolic compounds and bromides.
BIOMASS & BIOENERGY
(2023)
Article
Energy & Fuels
Vianney Andrew Yiga, Andrew Nuwamanya, Agatha Birungi, Michael Lubwama, Harriet Nalubega Lubwama
Summary: Despite the benefits of briquettes in offsetting the negative impacts of firewood/charcoal, their uptake remains low due to a lack of literature on key parameters. This study analyzed the emissions, combustion, kinetics, and thermodynamic characteristics of carbonized briquettes made from rice husks. Results showed high activation energy, drop strength, and particle density, as well as low energy barrier and endothermic nature of the degradation process. The developed briquettes also exhibited high energetic densities and fuel value indices, attributed to their high heating value.
Article
Environmental Sciences
Li Xu, Shengcai Li, Youchao Zhang, Wanghu Sun, Longwei Pan, Lei Wang
Summary: This study investigates the pyrolysis behavior of waste plastics. Through experimental analysis and modeling, the kinetic characteristics and reaction mechanism of the pyrolysis process are analyzed and optimized.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Energy & Fuels
Nesibe Dilmac
Summary: The study investigated the reduction kinetics of an iron ore oxygen carrier from Mentes? (Turkey) using thermogravimetry, revealing the gas-solid reaction kinetics in three stages. The experimental data in the second and third stages were best represented by the two-dimensional contradiction (R2) and unimolecular decay (F1) models.
Article
Energy & Fuels
Guilherme Davi Mumbach, Jose Luiz Francisco Alves, Jean Constantino Gomes da Silva, Michele Di Domenico, Rennio Felix de Sena, Cintia Marangoni, Ricardo Antonio Francisco Machado, Ariovaldo Bolzan
Summary: This study is the first attempt to investigate the cocoa shell pyrolysis in terms of kinetic triplet, thermodynamic parameters, and evolved volatile analysis using the TGA-FTIR technique. The results show that multiple kinetic triplets accurately describe the pyrolysis behavior of the cocoa shell, revealing the presence of high-energy compounds and useful chemicals. The compensation effect method proves to be superior in ensuring the consistency of the overall kinetic expression.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Energy & Fuels
Abhisek Sahoo, Sachin Kumar, Kaustubha Mohanty
Summary: The physicochemical and thermochemical characterization of non-edible oil seeds such as Putranjiva, Amaltas, and Siris revealed their potential for renewable fuel and green chemicals production.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Review
Agricultural Engineering
Arun Krishna Vuppaladadiyam, Sai Sree Varsha Vuppaladadiyam, Abhishek Awasthi, Abhisek Sahoo, Shazia Rehman, Kamal Kishore Pant, S. Murugavelh, Qing Huang, Edward Anthony, Paul Fennel, Sankar Bhattacharya, Shao-Yuan Leu
Summary: This review provides an overview of recent advancements in biomass pyrolysis, classifying them into conventional, advanced, and emerging approaches, and summarizing the current status for industrial applications. The impact of different pyrolysis techniques on biomass conversion for hydrogen production is evaluated, and future directions for overcoming current shortcomings are discussed.
BIORESOURCE TECHNOLOGY
(2022)
Review
Environmental Sciences
Arun Krishna Vuppaladadiyam, Sai Sree Varsha Vuppaladadiyam, Abhisek Sahoo, S. Murugavelh, Edward Anthony, Thallada Bhaskar, Ying Zheng, Ming Zhao, Huabo Duan, Yan Zhao, Elsa Antunes, Ajit K. Sarmah, Shao-Yuan Leu
Summary: The conversion of biomass into renewable value-added products has the potential to meet high energy demands, reduce greenhouse gas emissions, and exploit under-utilized resources. Techno-economic analysis (TEA) and life-cycle assessment (LCA) are important tools for evaluating the commercialization potential of biomass pyrolysis. It is crucial to consider both economic and environmental indicators to assess the performance and constraints of this technology. Additionally, the upstream and downstream processes play a significant role in understanding the life cycle impacts and overall potential of biomass pyrolysis systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Pabitra Mohan Mahapatra, Achyut Kumar Panda, Sahin Ahmed, Sachin Kumar
Summary: The thermal degradation kinetics of discarded Bakelite were investigated using various model fitting and model-free methods, including KAS, FWO, FRM, STR, LTA, VYZ, AVM, and the Master plot. The kinetics triplets (A, Ea, and n) were calculated to determine a suitable mechanism. The thermal degradation experiment was conducted at different heating rates and under an inert gas atmosphere. The results showed that the thermal degradation of discarded Bakelite followed an order-based F-5 model mechanism with an activation energy of 213 KJ/mol. The accuracy of the activation energy was confirmed by KAS, FWO, and VYZ iso-conversional methods.
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Energy & Fuels
Indra Mohan, Abhisek Sahoo, Sandip Mandal, Sachin Kumar
Summary: In this study, the thermal properties of Phoenix dactylifera and Phyllanthus emblica seeds were analyzed to determine their potential as pyrolysis feedstocks. Kinetic modeling and artificial neural network (ANN) modeling were used to predict the best fitting for the seeds. The results showed that these waste biomass seeds could be used to obtain liquid fuels and valuable chemicals, contributing to a circular economy and reducing environmental degradation.
BIOMASS CONVERSION AND BIOREFINERY
(2023)
Article
Green & Sustainable Science & Technology
Priyankesh Kumar, Devesh Kumar, Ravi Shankar, Sachin Kumar, Prashant Saini, Narendra Kumar
Summary: This study prepared biodiesel from lemongrass oil through transesterification process and characterized its properties. Blending mixtures of biodiesel and fossil diesel at different proportions were tested for performance and emission. The results showed that the blend with 20% biodiesel had the best performance and emission characteristics.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Green & Sustainable Science & Technology
Satya Prakash Pandey, Satish Kumar Singh, Achyut K. Panda, Sandip Mandal, Sachin Kumar
Summary: TiO2 nano particles synthesized through the sol-gel technique were successfully employed for catalytic pyrolysis of Argemone mexicana seed, resulting in increased bio-oil yield and improved product quality. Furthermore, the bio-char also showed potential for further applications.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2023)
Article
Green & Sustainable Science & Technology
Pabitra Mohan Mahapatra, Sachin Kumar, Achyut Kumar Panda
Summary: Bakelite, a thermosetting plastic, can't be effectively recycled through pyrolysis due to low conversion to useful products. Co-pyrolyzing bakelite with high-density polyethylene (HDPE) can improve the conversion and obtain more valuable products. The kinetics and thermodynamic parameters of HDPE blended Bakelite are studied to determine a suitable mechanism for co-pyrolysis.
CLEANER ENGINEERING AND TECHNOLOGY
(2023)
Article
Environmental Sciences
Komal Saini, Abhisek Sahoo, Jitendra Kumar, Amrita Kumari, Kamal Kishore Pant, Amit Bhatnagar, Thallada Bhaskar
Summary: This study investigates the use of post Reverse Osmosis (RO)-carbon as an adsorbent for dye removal from water. The thermally activated post RO-carbon (RO900) exhibited a high surface area of 753 m2/g. In batch system experiments, efficient removal of Methylene Blue (MB) and Methyl Orange (MO) dyes was achieved using 0.08 g and 0.13 g/50 mL adsorbent dosage, respectively. The optimized equilibration time for both dyes was 420 min. The maximum adsorption capacities of RO900 for MB and MO dyes were 223.29 and 158.14 mg/g, respectively. The study also demonstrates the successful treatment of simulated effluent with over 99% dye removal efficiency. The use of discarded RO-carbon offers cost and low toxicity benefits, highlighting the significance of this study.
ENVIRONMENTAL RESEARCH
(2023)
Article
Energy & Fuels
Indra Mohan, Achyut K. Panda, Sandip Mandal, Sachin Kumar
Summary: This study assessed the pyrolysis potential of a mixture of Azadirachta indica seeds and waste LDPE, and found that the blend sample required less energy for pyrolysis compared to individual samples. The findings suggest that combining Azadirachta indica seeds with waste LDPE could be a viable alternative to improve the overall process.
Article
Engineering, Chemical
Komal Saini, Amrita Kumari, Abhisek Sahoo, Kamal Kishore Pant, Thallada Bhaskar
Summary: Eggshell-templated lignin carbon material exhibits high adsorption capacity and removal efficiency for dyes, with spontaneous adsorption nature.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Environmental Sciences
Pabitra Mohan Mahapatra, Sachin Kumar, Puspanjali Mishra, Achyut Kumar Panda
Summary: In this study, the co-pyrolysis of thermoplastic blended bakelite was investigated using different kinetics models. The addition of thermoplastics showed a significant synergetic effect on the thermal degradation of bakelite, leading to changes in the degradation temperature and weight loss pattern. Among the thermoplastics, PP had the largest promotional effect, followed by PS, HDPE, and PMMA. The activation energy for thermal degradation was found to be lowest for PP blended bakelite. The addition of thermoplastics also influenced the degradation mechanism and thermodynamics of the reaction. These findings contribute to the optimization of pyrolysis reactor design for increased production of valuable pyrolytic products.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Energy & Fuels
Amar Kumar Das, Taraprasad Mohapatra, Achyut K. Panda, Manoranjan Mishra, Sachin Kumar
Summary: In this study, the best-worst multi-criteria decision-making method was used to select PP and HDPE from five waste plastic pyrolytic oils as the optimal fuels. Engine testing and analysis determined the best test fuel for optimal engine performance and emissions.
JOURNAL OF THE ENERGY INSTITUTE
(2023)
Article
Environmental Sciences
Indra Mohan, Amar Kumar Das, Ramakrishnan Prakash, Sachin Kumar
Summary: In this research, an artificial neural network was used to model the performance and emissions of a diesel engine combusting a blended fuel. The study found that ANN is an effective tool for predicting the performance and emissions of blended fuels in CI engines.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.
