Article
Chemistry, Multidisciplinary
Daniel Bemmuyal Passos Santos, Marcos Fabio de Jesus, Jose Mario Ferreira Junior, Carlos Augusto de Moraes Pires
Summary: Determining the kinetics of biomass degradation using thermogravimetry is a complex process due to the presence of numerous parallel and consecutive reactions. Existing models have limitations in terms of their applicability and accuracy. In this study, a new procedure was proposed to determine the degradation kinetics of sisal residue, and it was found that Friedman's model provided the best fit to the experimental data.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
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
Chemistry, Multidisciplinary
Rakesh Saini, Santosh Deb Barma, Danda Srinivas Rao, Suddhasatwa Basu, Sanjay Mahajani
Summary: In this study, a nonisothermal thermogravimetric analysis (TGA) technique was used to determine the devolatilization kinetic parameters of different carbon-source samples. The results showed that petcoke had the highest activation energy, while lignite had the lowest. The catalytic effect of the ash composition profile, morphology, and structure on the thermo-kinetic behavior was also investigated.
Article
Agricultural Engineering
C. Primaz, O. Gil-Castell, A. Ribes-Greus
Summary: This study comprehensively evaluated the thermochemical conversion of spent coffee grounds under inert and oxidative conditions as a feasible valorisation route for this biomass. The individual contribution of the pseudo-components (hemicellulose, cellulose, lignin) was assessed, and the kinetic parameters were determined. The results demonstrated the advantage of using spent coffee grounds as biofuels, with high heating values. The decomposition paths were found to be similar regardless of the atmosphere.
BIOMASS & BIOENERGY
(2023)
Article
Energy & Fuels
Anil Kumar Varma, Shweta Singh, Ashwani Kumar Rathore, Lokendra Singh Thakur, Ravi Shankar, Prasenjit Mondal
Summary: The aim of this study was to investigate the thermal degradation behavior of peanut shell and determine its kinetic and thermodynamic parameters. The results showed that the thermal degradation of peanut shell occurred in three stages, with the major weight loss happening between 200 and 600 degrees Celsius. The study suggests that peanut shell has the potential to be used as a feedstock for pyrolysis.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Energy & Fuels
Ahmad Nawaz, Pradeep Kumar
Summary: The current study explored the impact of different hydrothermal carbonization temperatures (180, 230, and 280 degrees C) on the fuel properties, kinetics, thermodynamics, and reaction mechanism of sunflower stalks. The hydrochars obtained at different temperatures were pyrolyzed in a thermogravimetric analyzer (TGA) at varying heating rates. Characterization methods such as FTIR, FE-SEM, and XRD were used to examine the changes in functional groups, surface morphology, and crystallinity. The findings can be applied to the development and design of pyrolysis reactors for clean biofuel generation from sunflower stalks.
Article
Agricultural Engineering
Mohit Kumar, Durga Rai, Garvit Bhardwaj, S. N. Upadhyay, P. K. Mishra
Summary: The research investigated the thermal degradation kinetics of peanut shell biomass, determining activation energy using different iso-conversional methods and optimizing process parameters to achieve maximum bio-oil and bio-char yields. The bio-oil produced is highly acidic with a high heating value, while the bio-char is rich in micronutrients.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Multidisciplinary Sciences
Erika Arenas Castiblanco, Juan Henao Montoya, Gabriela Valencia Rincon, Zulamita Zapata-Benabithe, Rafael Gomez-Vasquez, Diego A. Camargo-Trillos
Summary: A new approach is proposed to obtain the kinetic parameters of biomass pyrolysis with calcium catalyst. The method combines the optimization of least squares with the Coats-Redfern integral method to avoid mathematical biases. The results provide reliable values of the activation energy for the pyrolysis of corn cob.
Article
Chemistry, Analytical
Erfeng Hu, Chongyang Dai, Yishui Tian, Yang Yang, Xiaojian Yi, Moshan Li, Si Shao, Yunfei Zhao
Summary: This study focuses on the pyrolysis of corn stover using an innovative infrared heated reactor to produce high-value bio-oil and gaseous products. The results show that infrared heating technology effectively suppresses secondary reactions, leading to higher bio-oil yield compared to electric heating technology. Bio-oil yield increases initially with temperature and then decreases, reaching a maximum at 550 degrees C.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Energy & Fuels
Radi A. Alsulami, Saad A. El-Sayed, Mohamed A. Eltaher, Akram Mohammad, Khalid H. Almitani, Mohamed E. Mostafa
Summary: This study used TGA to evaluate the thermal degradation characteristics of date palm leaves, seeds, leaf stems, and their blends at different heating rates. The kinetic parameters were determined using the KAS and OFW methods, and it was found that the heating rate significantly affected the thermal degradation. Higher heating rates resulted in better pyrolysis performance.
Article
Green & Sustainable Science & Technology
Kiattikhoon Phuakpunk, Benjapon Chalermsinsuwan, Suttichai Assabumrungrat
Summary: The study aimed to develop a proper kinetics investigation method for pyrolysis reaction and compared three favorite model-free methods, showing that using Friedman method parameters in a conversion range of 0.1-0.6 gave conversion curves mostly in good agreement with experimental results. Mixing different biomasses showed varying effects on activation energy in different temperature ranges.
Article
Thermodynamics
Saartjie M. Gouws, Marion Carrier, John R. Bunt, Hein W. J. P. Neomagus
Summary: Accurate prediction of the yield and composition of pyrolysis products is crucial for the design and operation of pyrolysis reactors and gasifiers. A new semi-global kinetic reaction scheme was proposed in this study to predict the composition of pyrolytic volatiles from raw and torrefied biomass. The model showed satisfactory results in predicting product distribution trends for changes in lignocellulosic composition, heating rate, and pressure.
ENERGY CONVERSION AND MANAGEMENT
(2022)
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
Thermodynamics
Thomas Rafael de Oliveira, Katia Tannous, Elisangela Cristina Trevisan de Lima
Summary: This study investigated the thermal decomposition and reaction kinetics of hybrid energy cane, finding that its thermochemical properties were similar to native energy canes and sugarcane residues. Through thermogravimetric analysis and mathematical models, important parameters such as activation energies, reaction orders, and compositions for pyrolysis were determined. The Independent Parallel Reactions Scheme showed better agreement with experimental data in simulating conversions and conversion rates.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Agricultural Engineering
Tanveer Rasool, Ishfaq Najar, Vimal Chandra Srivastava, Ashok Pandey
Summary: The study investigated the thermogravimetric analysis of almond shells for bioenergy production, with activation energy values indicating favorable product formation. Findings support the potential application of almond shells for energy production through pyrolysis.
BIORESOURCE TECHNOLOGY
(2021)
Article
Agricultural Engineering
Yinping Xiang, Meiying Jia, Rui Xu, Jialu Xu, Lele He, Haihao Peng, Weimin Sun, Dongbo Wang, Weiping Xiong, Zhaohui Yang
Summary: This study investigated the impact of the non-antibiotic pharmaceutical carbamazepine on antibiotic resistance genes (ARGs) during anaerobic digestion. The results showed that carbamazepine induced the enrichment of ARGs and increased the abundance of bacteria carrying these genes. It also facilitated microbial aggregation and intercellular communication, leading to an increased frequency of ARGs transmission. Moreover, carbamazepine promoted the acquisition of ARGs by pathogens and elevated their overall abundance.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Weixin Zhao, Tianyi Hu, Hao Ma, Dan Li, Qingliang Zhao, Junqiu Jiang, Liangliang Wei
Summary: This review summarizes the effects and potential mechanisms of biochar on microbial behavior in AD systems. The addition of biochar has been found to promote microbial colonization, alleviate stress, provide nutrients, and enhance enzyme activity. Future research directions include targeted design of biochar, in-depth study of microbial mechanisms, and improved models.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Christina Karmann, Anna Magrova, Pavel Jenicek, Jan Bartacek, Vojtech Kouba
Summary: This review assesses nitrogen removal technologies in reject water treatment, highlighting the differences in environmental impacts and economic benefits. Partial nitritation-anammox shows potential for economic benefits and positive environmental outcomes when operated and controlled properly.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Wei-Hao Huang, Ying-Ju Chang, Duu-Jong Lee
Summary: This study modified pinecone biochar with layered double hydroxide (LDH) to enhance its adsorption capacity for heavy metal and phosphate ions. The LDH-biochar showed significantly improved adsorption capacities for Pb2+ and phosphate, and a slight increase for Cu2+ and Co2+. The LDH layer enhanced the adsorption through various mechanisms.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Chao Song, Fanfan Cai, Shuang Yang, Ligong Wang, Guangqing Liu, Chang Chen
Summary: This paper developed a machine learning model to predict the biochemical methane potential during anaerobic digestion. Model analysis identified lignin content, organic loading, and nitrogen content as key attributes for methane production prediction. For feedstocks with high cellulose content, early methane production is lower but can be improved by prolonging digestion time. Moreover, lignin content exceeding a certain value significantly inhibits methane production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sang Min Lee, Ju Young Lee, Ji-Sook Hahn, Seung-Ho Baek
Summary: This study successfully developed an efficient platform strain using Yarrowia lipolytica for the bioconversion of renewable resources into adipic acid, achieving a remarkable increase in production level.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Sefkan Kendir, Matthias Franzreb
Summary: This study presents a novel approach using magnetic separation to efficiently harvest freshwater microalgae, Chlorella vulgaris. By combining pH-induced calcium phosphate precipitation with cheap natural magnetite microparticles, harvesting efficiencies up to 98% were achieved in the model medium.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Ishaq Kariim, Ji-Yeon Park, Wajahat Waheed Kazmi, Hulda Swai, In-Gu Lee, Thomas Kivevele
Summary: The impact of reaction temperature, residence time, and ethanol: acetone on the energy compositions and yield enhancement of biocrudes was investigated. The results showed that under appropriate conditions, biocrudes with high energy and low oxygen content can be obtained, indicating a high potential for utilization.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xiyue Zhang, Xiyao Li, Liang Zhang, Yongzhen Peng
Summary: Intermittent aeration is an innovative approach to enhance nitrogen removal in low carbon-to-nitrogen ratio municipal sewage, providing an efficient strategy for the continuous plug-flow AOA process.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Xu Yang, Mahmoud Mazarji, Mengtong Li, Aohua Li, Ronghua Li, Zengqiang Zhang, Junting Pan
Summary: This study investigated the impact of magnetite on the nitrogen cycle of pig manure biostabilisation. The addition of magnetite increased N2O emissions and decreased NH3 emissions during composting. It also increased the total nitrogen content but should be considered for its significant increase in N2O emissions in engineering practice.
BIORESOURCE TECHNOLOGY
(2024)
Review
Agricultural Engineering
Ty Shitanaka, Haylee Fujioka, Muzammil Khan, Manpreet Kaur, Zhi-Yan Du, Samir Kumar Khanal
Summary: The market value of microalgae has exponentially increased in the past two decades, thanks to their applications in various industries. However, the supply of high-value microalgal bioproducts is limited due to several factors, and strategies are being explored to overcome these limitations and improve microalgae production, thus increasing the availability of algal-derived bioproducts in the market.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Martin Kerner, Thorsten Wolff, Torsten Brinkmann
Summary: The efficiency of using enriched CO2 from flue gas for large-scale production of green microalgae has been studied. The results show that the use of membrane devices and static mixers can effectively improve the CO2 recovery rate and maintain the suitable pH and temperature during cultivation, achieving a more economical and sustainable microalgae production.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rui Ma, Ji Li, Rd Tyagi, Xiaolei Zhang
Summary: This review summarizes the microorganisms capable of using CO2 and CH4 to produce PHAs, illustrating the production process, factors influencing it, and discussing optimization techniques. It identifies the challenges and future prospects for developing economically viable PHAs production using GHGs as a carbon source.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Bing Wang, Peng Zhang, Xu Guo, Xu Bao, Junjie Tian, Guomin Li, Jian Zhang
Summary: The addition of zeolite in the co-composting of chicken manure and straw significantly reduced the emissions of ammonia and N2O, and increased the nitrate content. Zeolite also promoted the abundance of nitrification genes and inhibited the expression of denitrification genes.
BIORESOURCE TECHNOLOGY
(2024)
Article
Agricultural Engineering
Rohit Dey, Franziska Ortiz Tena, Song Wang, Josef Martin Messmann, Christian Steinweg, Claudia Thomsen, Clemens Posten, Stefan Leu, Matthias S. Ullrich, Laurenz Thomsen
Summary: This study investigated the operation of a 1000L microalgae-based membrane photobioreactor system for continuous secondary wastewater treatment. The research focused on a green microalgae strain called Desmodesmus sp. The study aimed to understand key trends and optimization strategies by conducting experiments in both summer and winter seasons. The findings showed that maintaining low cell concentrations during periods of light inhibition was beneficial for nutrient uptake rates. Effective strategies for enhancing algae-based wastewater treatment included cell mass recycling and adjusting dilution rates based on light availability.
BIORESOURCE TECHNOLOGY
(2024)