Article
Environmental Sciences
D. Praveen Kumar, D. Ramesh, V. Karuppasamy Vikraman, P. Subramanian
Summary: Adsorption is a promising technology in the gas separation and purification process, with activated carbon and zeolites being the most commonly used adsorbents. Research on synthesizing low-cost and effective adsorbents has gained attention, with Carbon Molecular Sieves (CMSs) considered as an attractive alternative.
ENVIRONMENTAL RESEARCH
(2022)
Review
Engineering, Chemical
Rumi Goswami, Amit Kumar Dey
Summary: This study discusses the production of activated carbon using agricultural leftovers and investigates the relationship between the pyrolysis stage and process variables. The effects of physical and chemical activation circumstances on the properties of activated carbon are also discussed. The study shows the preparation of activated carbon from various agricultural residues and compares different activated carbon prepared from these residues.
DESALINATION AND WATER TREATMENT
(2022)
Article
Energy & Fuels
Herman Siruru, Wasrin Syafii, I. Nyoman J. Wistara, Gustan Pari, Ismail Budiman
Summary: Thermochemical biomass conversion is widely used for its low temperature and pressure conditions, which reduce costs. This study compared the charcoal properties of hydrothermal and pyrolysis carbonization and found that hydrothermal carbonization produces chars with higher iodine adsorption capacity, surface area, and pore volume, while pyrolysis carbonization produces chars with higher calorific value.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Energy & Fuels
Arunkumar Chandrasekaran, Senthilmurugan Subbiah, Pietro Bartocci, Haiping Yang, Francesco Fantozzi
Summary: Charcoal is derived from wood through carbonization and widely used for domestic and industrial heating applications. The research findings suggest that the combustion efficiency and reactivity of charcoal are related to volatile matter content, and the activation energy of charcoal increases with the rise in carbonization temperature.
Review
Engineering, Chemical
Ali Umut Sen, Helena Pereira
Summary: This review highlights the potential of bark as a feedstock for char production from lignocellulosic biomass. It emphasizes the importance and large exploitation potential of barks, and discusses the differences between barks and other lignocellulosic materials, as well as suitable production methods for barks.
Article
Materials Science, Paper & Wood
Nurhazwani Jarawi, Ismail Jusoh
Summary: The carbonization of five Malaysian bamboo species was conducted to compare the quality of bamboo charcoal based on proximate analysis. Different bamboo species showed variations in charcoal properties and basic density increased with culm height. Charcoal yields exceeded 30% for all species except B. vulgaris and D. asper. Charcoals made from D. asper and G. hasskaniana showed potential as alternative raw materials for charcoal production due to their desirable properties. The charcoal quality from all species was acceptable for domestic use, with a mean gross calorific value ranging from 24.4 to 29.2 MJ/kg. The bottom section of the culm produced the highest quality charcoal.
Article
Green & Sustainable Science & Technology
Adriano Souza Leao, Diego Lima Medeiros, Marcelo Andrade Santiago, Arilma Oliveira do Carmo Tavares, Henrique Leonardo Maranduba, Edna dos Santos Almeida
Summary: This study assessed the environmental and energy performance of producing 1.0 ton of pig iron through a life cycle assessment. The results showed that by improving material blending and maximizing co-product utilization, significant improvements can be made to the environmental performance of pig iron, making it competitive in the global market.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2023)
Article
Energy & Fuels
Felix Charvet, Felipe Silva, Luis Ruivo, Luis Tarelho, Arlindo Matos, Jose Figueiredo da Silva, Daniel Neves
Summary: Charcoal production in Portugal is primarily based on woody residues from cork oak and holm oak, but urgent actions are being taken to reduce fuel in forests after recent wildfires. Research shows that the carbonization process can valorize alternative woody biomasses not currently used on a large scale, with a focus on properties of resulting charcoals, particularly for use in the Portuguese market for barbecue purposes.
Article
Engineering, Mechanical
Hamza Simsir
Summary: The study aimed to improve the mechanical properties of aluminum and its composites by using nanosized and sub-micron sized carbonaceous additives, specifically hydrothermal carbons (HTCs) synthesized from cellulose and chitosan. The chitosan-derived aggregated spheres of HTCs showed better mechanical, tribological, and corrosive properties compared to the hard spheres.
SURFACE TOPOGRAPHY-METROLOGY AND PROPERTIES
(2021)
Article
Materials Science, Multidisciplinary
Hary Demey, Elvira Rodriguez-Alonso, Elie Lacombe, Maguelone Grateau, Nicolas Jaricot, Andre Chatroux, Sebastien Thiery, Muriel Marchand, Thierry Melkior
Summary: The torrefaction of almond shells and olive stones showed that treatment time should not exceed 45 minutes, with the highest temperature leading to increased heating values and fixed carbon values, as well as maximum mass loss. Large-scale torrefaction produced biochars with properties similar to those obtained in the laboratory-scale batch reactor, suitable for use as reducing materials in metallurgy.
Article
Engineering, Chemical
Daniele Duca, Vittorio Maceratesi, Sara Fabrizi, Giuseppe Toscano
Summary: The study evaluated the pelletisation process of olive and vineyard prunings, finding that blending with other biomass materials can improve pellet quality and adding pruning residues to spruce sawdust can increase durability.
Article
Engineering, Environmental
G. Ginni, S. Kavitha, Yukesh R. Kannah, Shashi Kant Bhatia, Adish S. Kumar, M. Rajkumar, Gopalakrishnan Kumar, Arivalagan Pugazhendhi, Nguyen Thuy Lan Chi, Rajesh J. Banu
Summary: The paper reviews the utilization of agricultural residues for the production of high valuable products, highlighting the importance of technical advancement and economic viability in promoting the valorization of agricultural residues. Additionally, the significance of techno-economic analysis and life-cycle assessment in assessing the environmental consequences of developed products is emphasized.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Energy & Fuels
Felix Charvet, Arlindo Matos, Jose Figueiredo da Silva, Luis Tarelho, Mariana Leite, Daniel Neves
Summary: This study characterized the wood carbonization process in a traditional brick kiln in the Portuguese region of Alentejo. The results showed that the kiln operates at low temperatures, leading to poor charcoal quality and low charcoal yield. Improvements in the carbonization process are needed to enhance efficiency, charcoal quality, and environmental acceptance.
Article
Environmental Sciences
Gao-Jie Jiao, Jiliang Ma, Yancong Li, Dongnv Jin, Yanzhu Guo, Jinghui Zhou, Runcang Sun
Summary: This study reports a MgO-functionalized lignin-based bio-charcoal as an efficient adsorbent for phosphate removal, showing excellent adsorption activity and regeneration ability. The MFLC exhibits extremely high adsorption activity and removal efficiency at low phosphate concentrations, and the loading content of MgO and particle size effectively enhance its phosphate adsorption activity.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agricultural Engineering
Wei Wang, Jo-Shu Chang, Duu-Jong Lee
Summary: The flourishing of anaerobic digestion highlights the importance of digestate valorization, which is crucial in determining the benefits of the process. Recently, digestate has gradually been perceived as a product rather than waste, in order to achieve the concept of a circular economy and maximize its benefits. Land application is the simplest way for valorization, but legislative restrictions and environmental concerns necessitate novel valorization methods. This review outlines the current methods for solid/liquid digestate valorization, nutrient recovery, microalgae cultivation, and integration with biological and thermochemical processes. The proposed novel valorization routes and their challenges and prospects are discussed, with the integration of anaerobic digestion and thermochemical methods showing potential market value for hydrochar/biochar-derived products.
BIORESOURCE TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Stefan Steinlechner, Juergen Antrekowitsch
Review
Materials Science, Multidisciplinary
S. Wegscheider, S. Steinlechner, M. Leuchtenmuller
Article
Metallurgy & Metallurgical Engineering
S. Steinlechner
JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY
(2018)
Article
Materials Science, Multidisciplinary
Stefan Steinlechner, Juergen Antrekowitsch
Article
Materials Science, Multidisciplinary
Manuel Leuchtenmueller, Juergen Antrekowitsch, Stefan Steinlechner
METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE
(2019)
Article
Chemistry, Multidisciplinary
Thomas Echterhof, Thomas Willms, Stefan Prei, Matti Aula, Ahmed Abdelrahim, Timo Fabritius, Davide Mombelli, Carlo Mapelli, Stefan Steinlechner, Inigo Unamuno
APPLIED SCIENCES-BASEL
(2019)
Article
Chemistry, Multidisciplinary
Thomas Willms, Thomas Echterhof, Stefan Steinlechner, Matti Aula, Ahmed Abdelrahim, Timo Fabritius, Davide Mombelli, Carlo Mapelli, Stefan Preiss
APPLIED SCIENCES-BASEL
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
L. Hoeber, R. Ahmed, T. Hofbauer, S. Steinlechner
Summary: This paper compares different methods for removing chlorine from tetra basic zinc chloride during the recycling process and explores the separation of chlorine through pyrohydrolysis and clinkering simulations.
TMS 2022 151ST ANNUAL MEETING & EXHIBITION SUPPLEMENTAL PROCEEDINGS
(2022)
Review
Green & Sustainable Science & Technology
Lukas Hoeber, Stefan Steinlechner
Summary: In the hydrometallurgical production of zinc, valuable elements are lost due to waste disposal. Various strategies, including the widely used Jarofix process, have been investigated to address this issue. However, challenges exist in implementing these methods on a large industrial scale.
CLEANER ENGINEERING AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Manuel Leuchtenmueller, Walter Schatzmann, Stefan Steinlechner
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2020)
Proceedings Paper
Green & Sustainable Science & Technology
Stefan Steinlechner, Juergen Antrekowitsch
REWAS 2019: MANUFACTURING THE CIRCULAR MATERIALS ECONOMY
(2019)
Proceedings Paper
Green & Sustainable Science & Technology
Juergen Antrekowitsch, Stefan Steinlechner
REWAS 2019: MANUFACTURING THE CIRCULAR MATERIALS ECONOMY
(2019)
Article
Metallurgy & Metallurgical Engineering
T. Echterhof, T. Willms, S. Preiss, M. Omran, T. Fabritius, D. Mombelli, C. Mapelli, S. Steinlechner, I Unamuno, S. Schueler, D. Mudersbach, T. Griessacher
METALLURGIA ITALIANA
(2019)
Proceedings Paper
Engineering, Environmental
S. Wegscheider, S. Steinlechner, G. Hanke, J. Antrekowitsch
WASTES - SOLUTIONS, TREATMENTS AND OPPORTUNITIES II
(2018)
Proceedings Paper
Metallurgy & Metallurgical Engineering
Stefan Steinlechner
METAL 2017: 26TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS
(2017)
Article
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
Selvakumar Periyasamy, Adane Asefa Adego, P. Senthil Kumar, G. G. Desta, T. Zelalem, V. Karthik, J. Beula Isabel, Mani Jayakumar, Venkatesa Prabhu Sundramurthy, Gayathri Rangasamy
Summary: Valorizing agricultural waste into valuable products is crucial for environmental protection and bioeconomy advancement. Preprocessing of agricultural waste is a critical step to convert free carbohydrate molecules for final conversion, and factors such as biomass nature, feed loading, pH, temperature, and time influence the process. This review provides comprehensive information on agricultural waste availability, preprocessing techniques, and factors influencing performance.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Aqueel Ahmad, Ashok Kumar Yadav, Achhaibar Singh, Dinesh Kumar Singh
Summary: The study focuses on predicting and optimizing the yield of biogas production in an anaerobic digester using co-digestion. Experimental data was used to develop a machine learning-based prognostic model, and the Response Surface Methodology (RSM) was employed to optimize the parameters. The results demonstrate that RSM coupled with machine learning is an effective technique for modeling, predicting, and optimizing biogas production yield.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Yijing Zhong, Wenxiang Zhai, Xinli Wei
Summary: This paper studies the thermal stability and decomposition of cork materials with and without silica aerogel filler. The results show that the decomposition is inhibited and the pyrolysis is significantly reduced with the addition of silica aerogel. This finding suggests that silica aerogel-infused cork may be a promising raw material for biofuel production with reduced environmental pollution.
BIOMASS & BIOENERGY
(2024)