Review
Energy & Fuels
Ali Abdelaal, Vittoria Benedetti, Audrey Villot, Francesco Patuzzi, Claire Gerente, Marco Baratieri
Summary: The gasification process is widely used for bioenergy production, and its high conversion efficiency makes it attractive. Gasification char, a byproduct of gasification, is often treated as industrial waste, despite its attractive qualities. However, its properties depend on the gasification parameters and initial feedstock, requiring careful characterization for suitable applications. This review provides an assessment of gasification and char properties, aiding in the selection of appropriate valorization pathways.
Review
Environmental Sciences
Chirag Goel, Sooraj Mohan, P. Dinesha
Summary: This paper reviews the method of carbon capture and storage, specifically the CO2 adsorption capabilities of biomass-derived hydrochar, and discusses the various factors affecting CO2 uptake.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Ana Ligero, Monica Calero, Antonio Perez, Rafael R. Solis, Mario J. Munoz-Batista, M. Angeles Martin-Lara
Summary: Chemical recycling of plastic waste through pyrolysis is a potential approach, but little attention has been given to the reuse of the resulting char residue. This study focuses on the preparation of activated carbons from char residues obtained from the pyrolysis of post-consumer plastic waste, which have been applied to CO2 adsorption.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Chemistry, Physical
Kawthar Frikha, Lionel Limousy, Joan Pons Claret, Cyril Vaulot, Karin Florencio Perez, Beatriz Corzo Garcia, Simona Bennici
Summary: The present study investigates the potential of waste tires to produce a valuable adsorbent material for application in wastewater treatment. The pyrolysis process and activation methods were studied to determine the properties and adsorption capacity of the produced chars. It was found that chemical activation significantly increased the surface area and porosity of the chars, leading to high adsorption capacity.
Article
Energy & Fuels
Kenji Koido, Takayuki Hoshi, Michio Sato
Summary: This study investigated the fuel characteristics of fruit-tree branches and proposed a reaction model for the CO2 gasification process. The results showed that the porous structure of the branches affected the gasification process, and the eMRPM model accurately described the peak gasification rate at the end of gasification. These findings have important implications for energy production using fruit-tree branches.
Review
Chemistry, Multidisciplinary
Anis Atikah Ahmad, Mohd Azmier Ahmad, Umi Fazara Md Ali, Khoo Ken
Summary: Due to global energy crisis and economic issues, biomass has gained global interest as an alternative to non-renewable activated carbon (AC) produced from coal. Biomass gasification has become a market focus and is predicted to reach USD 126 billion by 2023. A critical concern for gasification plants is the handling of char residues, which are currently treated as waste. This review article evaluates the characteristics of gasification char (GC) for adsorption processes and summarizes recent studies on adsorption using GC.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Energy & Fuels
Bo Wang, Fanfan Xu, Xin Wang, Jun Li, Yongyi Song, Yingyun Qiao, Yuanyu Tian
Summary: This study provides a comprehensive comparative investigation on feedstock pyrolysis and char gasification performance of typical forestry biomass from Northeast Asia. The results showed that different forestry biomass has close thermal decomposition characteristics, and Salicaceae char has better gasification performance than Pinaceae char due to its high AAEMs content.
Article
Energy & Fuels
Bo Wang, Fanfan Xu, Xin Wang, Jun Li, Yongyi Song, Yingyun Qiao, Yuanyu Tian
Summary: The present study provides a comprehensive comparative investigation on the feedstock pyrolysis and char gasification performance of typical forestry biomass from Northeast Asia. The results show that different forestry biomass has similar thermal decomposition characteristics, and the performance of Salicaceae is better than that of Pinaceae in terms of pyrolysis and char gasification.
Article
Agricultural Engineering
Jianjun Hu, Zhentao Jia, Shuheng Zhao, Wei Wang, Quanguo Zhang, Ronghou Liu, Zhen Huang
Summary: In this study, Fe-Ni/AC catalyst was prepared and used for catalytic gasification of various biomass feedstocks. It was found that Fe-Ni/AC had an impact on the H2/CO ratio of syngas and exhibited different catalytic effects on different biomass feedstocks.
BIORESOURCE TECHNOLOGY
(2021)
Article
Environmental Sciences
K. R. Deepak, Sooraj Mohan, P. Dinesha, Rajasekhar Balasubramanian
Summary: For the first time, activated hydrochar was prepared from orange peel waste using KOH for potential environmental applications. The impact of hydrothermal carbonization temperature on the CO2 adsorption capacity of the activated hydrochar was investigated. The results showed that the activated hydrochar had high microporosity and various functional groups, making it suitable for effective adsorption. The highest CO2 uptake was observed for the hydrochar produced at a temperature of 220°C.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Chemistry, Multidisciplinary
Anis Atikah Ahmad, Mohd Azmier Ahmad, Nasehir Khan E. M. Yahaya, Jamilah Karim
Summary: This study focused on utilizing gasified Hevea brasiliensis root based activated carbon for the adsorption of malachite green dye. The characteristics responsible for adsorption were analyzed, revealing a multilayer adsorption process. The thermodynamic data showed the adsorption process to be spontaneous and endothermic, making GHBRAC economically feasible for commercialization.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Energy & Fuels
Christoph Schneider, Stella Walker, Aekjuthon Phounglamcheik, Kentaro Umeki, Thomas Kolb
Summary: This study investigates the thermal deactivation of beech wood chars during secondary pyrolysis, showing that the initial conversion rate Ro decreases linearly from 1000 degrees C to 1400 degrees C, but increases significantly at 1600 degrees C. Graphitization of the carbon matrix and CaO dispersion were also analyzed, indicating the formation of thin CaO layers at 1600 degrees C, which greatly affect the char reactivity.
Article
Chemistry, Physical
Qiuyun Pu, Jirui Zou, Junya Wang, Shijian Lu, Ping Ning, Liang Huang, Qiang Wang
Summary: In this study, biomass wastes were used to prepare activated carbons with high micropore percentage for CO2 capture. The AC derived from walnut shells showed superior CO2 uptake, and the micropore percentage was found to have a significant influence on the CO2 capture performance of AC.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Environmental Sciences
V. Benedetti, M. Scatto, M. Baratieri, P. Riello
Summary: Char, a solid residue from biomass gasification, can be used as a filler in polymers to improve thermal stability and electrical conductivity without affecting structure and mechanical properties. Less char is needed compared to carbon black to achieve the same electrical conductivity. This study opens up new opportunities for valorizing char in cutting-edge applications and presents a low-cost substitute for carbon-based fillers in polymer manufacturing.
WASTE AND BIOMASS VALORIZATION
(2021)
Article
Green & Sustainable Science & Technology
Kang Hun Kim, Moon Hyeon Kim
Summary: This study investigated the single-component adsorption of CO2, CO, N-2, and H-2 using different adsorbents. The results showed that the surface features and molecular properties of the adsorbents have a significant impact on the adsorption process, and the selectivity of CO2 varies with different adsorbents.
Article
Environmental Sciences
Stergios Vakalis, Konstantinos Moustakas, Vittoria Benedetti, Eleonora Cordioli, Francesco Patuzzi, Maria Loizidou, Marco Baratieri
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2019)
Article
Agricultural Engineering
Filippo Marchelli, Eleonora Cordioli, Francesco Patuzzi, Elena Sisani, Linda Barelli, Marco Baratieri, Elisabetta Arato, Barbara Bosio
BIOMASS & BIOENERGY
(2019)
Article
Energy & Fuels
Eleonora Cordioli, Francesco Patuzzi, Marco Baratieri
Review
Thermodynamics
Francesco Patuzzi, Daniele Basso, Stergios Vakalis, Daniele Antolini, Stefano Piazzi, Vittoria Benedetti, Eleonora Cordioli, Marco Baratieri
Summary: In recent years, there has been a growing interest in small-scale biomass gasification in Central and Northern Europe. A comprehensive survey and monitoring campaign were conducted in the South Tyrolean region of Italy to assess biomass and char flows, and characterize gasification products. The data collected provides reference values for small-scale biomass gasification systems in the European market and explores potential utilization pathways for chars.
