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
Energy & Fuels
Muhammad Sajjad Ahmad, Jiri Jaromir Klemes, Hesham Alhumade, Ali Elkamel, Abid Mahmood, Boxiong Shen, Muhammad Ibrahim, Ahmad Mukhtar, Sidra Saqib, Saira Asif, Awais Bokhari
Summary: The study evaluated the feasibility of using Maple Leaf Waste (MLW) to produce biofuel-bioenergy and chemicals for the first time. By analyzing different degradation stages and temperatures, it was determined that the pyrolysis temperature range for maximum bioenergy production is from 200 degrees C to 430 degrees C. The findings show that MLW has significant potential for bioenergy production and is suitable for co-pyrolysis with other waste and biomass feedstock.
Article
Polymer Science
Nuzhat Javed, Sana Muhammad, Shazia Iram, Muhammad Wajahat Ramay, Shaan Bibi Jaffri, Mariem Damak, Gyorgy Fekete, Zsolt Varga, Andras Szekacs, Laszlo Aleksza
Summary: The current energy crisis and waste management problems have led to the investigation of alternative solutions. This study explored the feasibility of pyrolysis of commonly used plastics as a way to recover energy and manage plastic waste. Results showed that pyrolysis of polyethylene terephthalate (PET), high- and low-density polyethylene (HDPE, LDPE), polypropylene (PP), and polystyrene (PS) resulted in flammable liquid products with high fuel conversion yields. The calorific values of these products were comparable to diesel and gasoline, making them potential fuel alternatives. Implementing this study could mitigate energy and environmental issues in developing countries and create entrepreneurship opportunities.
Article
Thermodynamics
Dariusz Kardas, Paulina Hercel, Izabela Wardach-Swiecicka, Sylwia Polesek-Karczewska
Summary: A simple two-equation model is used to investigate thermal decomposition of a single cylindrical wood particle, analyzing the contribution of heat transfer and chemical processes during pyrolysis. The study discusses reaction rate and kinetic constant values for biomass, proposing a new approach for determining reaction rate. Chemical reaction time and heat diffusion time were evaluated for different particle diameters and temperatures, showing that at low temperatures, chemical reaction time is significantly longer than heat transfer time.
Article
Chemistry, Physical
Shengshu Yang, Zeliang Chen, Jiaxiao Wang, Dong Li, Lei Luo, Zhengang Liu
Summary: This study investigates the catalytic pyrolysis characteristics of hydrochar derived from sawdust with calcined eggshell. The results show that calcined eggshell enhances the pyrolysis behavior of hydrochar and reduces pollutant emissions. Hydrochar exhibits high fuel quality and has potential use for renewable energy production.
Article
Chemistry, Analytical
Xiufang Gao, Mengjiao Tan, Shilin Jiang, Zhongliang Huang, Changzhu Li, Tingzhou Lei, Zhiwei Wang, Yi Zhu, Hui Li
Summary: This study investigated the pyrolysis behavior and properties of biochars derived from torrefied rice straw under different torrefaction pressures. Results showed that torrefaction pressure significantly influenced the pyrolysis kinetics, with GP-torrefied RS exhibiting safer and more stable pyrolysis compared to AP-torrefied RS. Biochars derived from AP-torrefied RS had higher specific surface area and O/C and (O + N)/C ratios, with better adsorption capacity for tetracycline compared to biochars derived from GP-torrefied RS.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Energy & Fuels
Yi Qiu, Dian Zhong, Kuo Zeng, Jun Li, Gilles Flamant, Ange Nzihou, Haiping Yang, Hanping Chen
Summary: This study investigated the influence of cellulose-lignin interaction on the evolution of biomass pyrolysis bio-oil heavy components. The results showed that the interaction between cellulose and lignin promoted the generation of lipids and unsaturated hydrocarbons while inhibiting the generation of condensed aromatic hydrocarbons, phenolic species, and sugars.
Article
Energy & Fuels
Sevgi Polat, Perviz Sayan
Summary: The present study investigated the pyrolysis characteristics and kinetics of spent coffee waste (SCW) at different heating rates using a thermogravimetric analyzer (TGA). The study found that different models accurately described the kinetic profiles of thermal decomposition and provided the mean activation energy of the coffee waste. The evolved gases during the decomposition primarily consisted of water, methane, and carbon dioxide.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Review
Chemistry, Analytical
Vahid Mortezaeikia, Omid Tavakoli, Mohammad Saleh Khodaparasti
Summary: The importance of balancing consumption and recycling to manage the life cycle of plastics wastes is evident. Pyrolysis is a promising way to thermal degradation of plastics for energy recovery and production of value-added materials. Comprehensive studies on kinetic methods and models are necessary to accurately describe waste plastics degradation.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Thermodynamics
Tomas Sitek, Jiri Pospisil, Jan Polacik, Radomir Chylek
Summary: This paper investigates the particulate matter emissions of 27 different types of solid biofuels through experimental determination using thermogravimetric analysis. The study reveals a relationship between particulate matter emissions and sample ash content and volatile matter content.
Article
Thermodynamics
Guo Ren Mong, William Woei Fong Chong, Siti Aminah Mohd Nor, Jo-Han Ng, Cheng Tung Chong, Rubia Idris, Jingwei Too, Meng Choung Chiong, Mohd Azman Abas
Summary: The rising environmental concern over industrial waste disposal has driven the exploration of alternative management methods. The waste-to-energy route has garnered interest as a potential way to transform uncontrollable waste into energy-rich by-products. Waste activated sludge from the food manufacturing industry has been investigated as a novel feedstock for pyrolysis, showing promise in the conversion into valuable bio-products.
Article
Engineering, Environmental
Gamzenur Ozsin, Ayse Eren Putun
Summary: This study investigates the pyrolysis of textile waste to develop efficient thermochemical conversion processes and create value-added products. Different kinetic models were applied to analyze the pyrolysis behavior using a thermogravimetric analyzer coupled with a mass spectrometer and a Fourier transform infrared spectrometer.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Polymer Science
Benjamin Paul, Laurence Bailly, Didier Begue, Christine Lartigau-Dagron, Bouchra Hassoune-Rhabbour, Valerie Nassiet
Summary: The non-isothermal thermal degradation of the cured phenolic triazine thermoset resin (PT30) under nitrogen atmosphere was studied. The degradation mechanism was found to occur in three main steps at 440 °C, 550 °C, and 720 °C. Chemical reactions were analyzed through the coupling of thermogravimetric analyses (TGA) with Fourier transform infrared detection (TGA/FTIR) and mass spectrometry (TGA/MS). A degradation mechanism was proposed based on experimental results and Density Functional Theory (DFT) calculations. The main degradation product was identified as carbon dioxide, generated through oxygen-carbon chain scissions, with the formation of cyanide hydrogen and possibly cyanic/isocyanic acid through the rupture of triazine rings.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Chemistry, Analytical
Guangyu Liu, Yujuan Hua, Ronda Gras, Jim Luong
Summary: An analytical strategy utilizing discrete frequency infrared imaging technique was developed to improve sample throughput in microplastic analysis. The concept demonstration study achieved high identification rates with a reduced scanning area, demonstrating the potential of this technique to enhance sample throughput.
ANALYTICAL CHEMISTRY
(2022)
Article
Energy & Fuels
Mudassir Hussain Tahir, Imtiaz Ali, Esma Yeliz Kaya, Selim Ceylan
Summary: The thermal conversion of waste furniture boards (WFB) was investigated using a coupled TG-FTIR system under inert atmosphere at different heating rates. Kinetic analysis revealed an average activation energy (Ea) of 175.91 (+/- 3.50), 171.41 (+/- 5.01), and 172.70 (+/- 5.06) kJ/mol, calculated using three model-free methods. Distribution of activation energy (DAEM) analysis indicated that the pyrolytic conversion of WFB is endothermic but favorable. A neural network model accurately predicted the thermal degradation, with a mean square error (MSE) of 0.3694 and adjusted R2 value of 0.9686. Pyrolysis of WFB produced molecules with -OH and -COOH functional groups, as well as small gas molecules such as CH4, CO2, and H2O.
Article
Thermodynamics
Pengcheng Zhao, Jingang Wang, Liming Sun, Yun Li, Haiting Xia, Wei He
Summary: The production of green hydrogen through water electrolysis is crucial for renewable energy utilization and decarbonization. This research explores the optimal electrode configuration and system design of compactly-assembled industrial electrolyzer. The findings provide valuable insights for industrial application of water electrolysis equipment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
V. Baiju, P. Abhishek, S. Harikrishnan
Summary: Thermally driven adsorption desalination systems (ADS) have gained attention as an eco-friendly solution for water scarcity. However, they face challenges related to low water productivity and scalability. To overcome these challenges, integrating ADS with other desalination technologies can create a small-scale hybrid system. This study proposes integrating ADS with a Thermo Electric Dehumidification (TED) unit to enhance its performance.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
C. X. He, Y. H. Liu, X. Y. Huang, S. B. Wan, Q. Chen, J. Sun, T. S. Zhao
Summary: A decentralized centroid multi-path RC network model is constructed to improve the temperature prediction accuracy compared to traditional RC models. By incorporating multiple heat flow paths and decentralizing thermal capacity, a more accurate prediction is achieved.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chaoying Li, Meng Wang, Nana Li, Di Gu, Chao Yan, Dandan Yuan, Hong Jiang, Baohui Wang, Xirui Wang
Summary: There is an urgent need to shift away from heavy dependence on fossil fuels and embrace renewable energy sources, particularly in the energy-intensive oil refining process. This study presents an innovative concept called the Solar Oil Refinery, which applies solar energy in oil refining. A solar multi-energies-driven hybrid chemical oil refining system that utilizes solar pyrolysis and electrolysis has been developed, significantly improving solar utilization efficiency, cracking rate, and hydrogen yield.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Chao Ma, Guanghui Wang, Dingbiao Wang, Xu Peng, Yushen Yang, Xinxin Liu, Chongrui Yang, Jiaheng Chen
Summary: This study proposes a bio-inspired fish-tail wind rotor to improve the wind power efficiency of the traditional Savonius rotor. Through transient simulations and orthogonal experiments, the key factors affecting the performance are identified. A response surface model is constructed to optimize the power coefficient, resulting in an improvement of 9.4% and 6.6% compared to the Savonius rotor.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sina Bahmanziari, Abbas-Ali Zamani
Summary: This paper proposes a new framework for improving electrical energy harvesting from piezoelectric smart tiles through a combination of magnetic plucking, mechanical impact, and mechanical vibration force mechanisms. Experimental results demonstrate a significant increase in energy yield and average energy harvesting time compared to other mechanisms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Nanjiang Dong, Tao Zhang, Rui Wang
Summary: This study establishes a multiobjective mixed-variable configuration optimization model for a comprehensive combined cooling, heating, and power energy system, and proposes an efficient generating operator to optimize this model. The experimental results show that the proposed algorithm performs better than other state-of-the-art algorithms.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Ahmed E. Mansy, Eman A. El Desouky, Tarek H. Taha, M. A. Abu-Saied, Hamada El-Gendi, Ranya A. Amer, Zhen-Yu Tian
Summary: This study aims to convert office paper waste into bioethanol through a sustainable pathway. The results show that physiochemical and enzymatic hydrolysis of the waste can yield a high glucose concentration. The optimal conditions were determined using the Box-Behnken design, and a blended membrane was used for ethanol purification.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Sven Klute, Marcus Budt, Mathias van Beek, Christian Doetsch
Summary: Heat pumps are crucial for decarbonizing heat supply, and steam generating heat pumps have the potential to decarbonize the industrial sector. This paper presents the current state, technical and economic data, and modeling principles of steam generating heat pumps.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Le Zhang, To-Hung Tsui, Yen Wah Tong, Pruk Aggarangsi, Ronghou Liu
Summary: This study investigates the effectiveness of a current-carrying-coil-based magnetic field in promoting anaerobic digestion of chicken manure. The results show that the applied magnetic field increases methane yield, decreases carbon dioxide production, and reduces the concentration of ammonia nitrogen. Microbial community analysis reveals the enrichment of certain methanogenic genera and enhanced metabolic pathways. Pilot-scale experiments confirm the technical effectiveness of the magnetic field assistance in enhancing anaerobic digestion of chicken manure.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Bo Chen, Ruiqing Ma, Yang Zhou, Rui Ma, Wentao Jiang, Fan Yang
Summary: This paper presents an advanced energy management strategy for fuel cell hybrid electric heavy-duty vehicles, focusing on speed planning and energy allocation. By utilizing predictive co-optimization control, this strategy ensures safe inter-vehicle distance and minimizes energy demand. Simulation results demonstrate the effectiveness of the proposed method in reducing fuel cell degradation cost and overall operation cost.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Fabio Fatigati, Roberto Cipollone
Summary: Organic Rankine Cycle-based microcogeneration systems that use solar sources to generate electricity and hot water can help reduce CO2 emissions in residential energy-intensive sectors. The adoption of a recuperative heat exchanger in these systems improves efficiency, reduces thermal power requirements, and saves on electricity costs.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Lipeng He, Renwen Liu, Xuejin Liu, Xiaotian Zheng, Limin Zhang, Jieqiong Lin
Summary: This research proposes a piezoelectric-electromagnetic hybrid energy harvester (PEHEH) for low-frequency wave motion and self-sensing wave environment monitoring. The PEHEH shows promising power output and the ability to self-power and self-sense the wave environment.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Shangling Chu, Yang Liu, Zipeng Xu, Heng Zhang, Haiping Chen, Dan Gao
Summary: This paper studies a distributed energy system integrated with solar and natural gas, analyzes the impact of different parameters on its energy utilization and emissions reduction, and obtains the optimal solution through an optimization algorithm. The results show that compared to traditional separation production systems, this integrated system achieves higher energy utilization and greater reduction in carbon emissions.
ENERGY CONVERSION AND MANAGEMENT
(2024)
Article
Thermodynamics
Qingpu Li, Yaqi Ding, Guangming Chen, Yongmei Xuan, Neng Gao, Nian Li, Xinyue Hao
Summary: This paper proposes and studies a piston-type thermally-driven pump with a structure similar to a linear compressor, aiming to eliminate the high-quality energy consumption of existing pumps and replace mechanical pumps. The coupling mechanism of working fluid flow and element dimension is analyzed based on force analysis, and experimental data analysis is used to determine the pump operation stroke. Theoretical simulation is conducted to analyze the correlation mechanism of the piston assembly. The research shows that the thermally-driven pump can greatly reduce power consumption and has potential for industrial applications.
ENERGY CONVERSION AND MANAGEMENT
(2024)