Article
Chemistry, Physical
Duygu Gunduz Han, Kaan Erdem, Adnan Midilli
Summary: This study investigated the effects of different types of waste plastics, equivalence ratio, operating temperature, and pressure on hydrogen production. The optimal conditions for achieving maximum hydrogen yield in the waste plastic gasification process were determined through simulation and experimental verification.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Si Woo Han, Diyar Tokmurzin, Jeong Jae Lee, Sung Jin Park, Ho Won Ra, Sang Jun Yoon, Tae-Young Mun, Sung Min Yoon, Ji Hong Moon, Jae Goo Lee, Young-Min Kim, Young Woo Rhee, Myung Won Seo
Summary: This study investigates the gasification characteristics of waste plastic and the tar removal properties of activated carbon and olivine. The results show that using activated carbon and olivine can effectively reduce the tar content and improve the quality of the product gas, and steam gasification can increase the content of hydrogen and carbon monoxide.
Article
Energy & Fuels
Maninderjit Singh, Shakirudeen A. Salaudeen, Brandon H. Gilroyed, Animesh Dutta
Summary: A detailed process model for co-gasification of biomass and plastics in a fluidized bed reactor was developed using Aspen Plus software. The effects of process parameters such as plastic content and reactor temperature on the composition and properties of syngas were investigated. The results showed that increasing the plastic content led to higher hydrogen concentrations in the syngas, and increasing the gasification temperature resulted in increased hydrogen content and higher heating value of the syngas.
Article
Thermodynamics
Francesco Parrillo, Filomena Ardolino, Carmine Boccia, Gabriele Cali, Davide Marotto, Alberto Pettinau, Umberto Arena
Summary: Co-gasification tests were conducted in a large-scale gasifier to treat plastics and biomass mixtures. The results showed that the ratio of plastics/biomass and equivalence ratio significantly affected the gasifier performances. The obtained syngas had a low heating value between 7 and 10 MJ/m3N.
Article
Green & Sustainable Science & Technology
Shaohua Du, Shouzheng Yuan, Qiang Zhou
Summary: The study focuses on the co-gasification of PET and coal in a fluidized bed reactor, taking into account variations in particle size, density, and devolatilization reaction rate modification. The model's effectiveness is verified by comparing simulation results with experimental data. Furthermore, the study discusses the impacts of inlet gas velocity, solid feed position, and initial particle size on hydrodynamics and co-gasification reaction.
Article
Thermodynamics
Si Woo Han, Jeong Jae Lee, Diyar Tokmurzin, Seok Hyeong Lee, Ji Young Nam, Sung Jin Park, Ho Won Ra, Tae-Young Mun, Sang Jun Yoon, Sung Min Yoon, Ji Hong Moon, Jae Goo Lee, Young-Min Kim, Young Woo Rhee, Myung Won Seo
Summary: The study investigated the air gasification properties of SRF with high content of residual mixed waste plastic in a lab scale bubbling fluidized bed gasifier. The results showed that gas yield increases and tar yield decreases as the operating temperature and air-to-fuel equivalence ratio (ER) increases, with changes in the concentration of various gases in the gas product. The H2/CO ratio increases with rising temperature and decreases with rising ER, while carbon conversion efficiency (CCE) and cold gas efficiency peak at 800 degrees C and ER of 0.25.
Article
Energy & Fuels
Vilailuck Siriwongrungson, Janjira Hongrapipat, Matthias Kuba, Reinhard Rauch, Shusheng Pang, Jullapong Thaveesri, Michael Messner, Hermann Hofbauer
Summary: Bed materials and their catalytic activity are key parameters influencing the performance of a dual fluidized bed gasification system. The presence of calcium-rich layers on the bed materials, influenced by the addition of biomass ash, calcium hydroxide, and dolomite, resulted in lower tar concentration and higher hydrogen concentration in the product gas.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Energy & Fuels
Shuai Yan, Xuan Qu, Zihong Xia, Caixia Chen, Jicheng Bi
Summary: The study found that the carbon structure and sulfur content in coal are key factors affecting hydrogasification reactivity. Experimental results showed that the mechanically mixed CaO/CaCO3 enhanced the activity of Co towards graphite carbon and captured sulfur adsorbed on Co surface.
Article
Energy & Fuels
Shuai Yan, Xuan Qu, Zihong Xia, Caixia Chen, Jicheng Bi
Summary: The experimental results demonstrate that calcium as an additive has a promoting effect on cobalt, and temperature and hydrogen pressure have significant impacts on the formation of products in the catalytic hydrogasification process. A two-stage reactor scheme was proposed, successfully achieving staged hydrogenation of coal.
Article
Thermodynamics
Zihong Xia, Shuai Yan, Caixia Chen, Xuan Qu, Jicheng Bi
Summary: The study conducted numerical modeling of CCHG in a pressurized bubbling fluidized bed using the MP-PIC algorithm, validating gas-solid flow dynamic properties and CH4 formation behavior. It comprehensively explored the trajectory and physiochemical properties of char particles during the whole residence time.
ENERGY CONVERSION AND MANAGEMENT
(2021)
Article
Chemistry, Analytical
Xi Zeng, Limin Wang, Fang Wang, Dandan Hu, Peng Wu, Xiaoyong Lai
Summary: This study investigated the reaction characteristics of tar thermal cracking and steam reforming using a micro fluidized bed reaction analyzer (MFBRA). The yields of gas components and carbon conversion were calculated and compared at different temperatures and steam partial pressures. The results showed that by raising temperature and steam partial pressure, the yields of H2/CO/CH4 and carbon conversion increased, while the trend of CO2 was initially increasing and subsequently decreasing. The reaction time in tar steam reforming was longer compared to thermal cracking, and there was a reduction in all reaction rates of gas generation and carbon conversion. Additionally, the activated energy of gas components generation and total carbon conversion decreased in tar steam reforming, and steam partial pressure had no impact on the activated energy.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Energy & Fuels
Weiwei Li, Yuncai Song
Summary: A steady-state multi-zone empirical model for catalytic coal gasification in a pressurized jetting fluidized bed was developed. The model took into account pressurized hydrodynamics, mass and heat transfers, and catalytic reaction kinetics. The calculated results showed good agreement with experimental data, and the effects of control parameters on catalytic reactions were analyzed. The results indicated that particle size, bed height, and catalyst loading were the most important factors for methanation.
Article
Thermodynamics
Jong-Woo Kim, Yong-Seong Jeong, Joo-Sik Kim
Summary: This study investigated the two-stage air gasification of wood pellets using active carbon as a catalyst. The results showed that smooth gasification could be achieved at around 600 degrees C, producing a producer gas with a similar gas quality to high-temperature gasification. Active carbon demonstrated excellent performance in removing tar and increasing H2 production.
Article
Chemistry, Physical
Jia-Hong Kuo, Chiou-Liang Lin, Chang-Yu Ho
Summary: This study explores the impact of fluidization and gasification parameters on the hydrogen composition in syngas. The results indicate that using zeolite as bed material and increasing the Steam/Biomass ratio can enhance the hydrogen content in syngas.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Yunlei Cui, Hongqing Shi, Yaning Zhang, Longfei Cui, Wenke Zhao, Wei Liu
Summary: The effects of gasification temperature, equivalence ratio, and microwave power on the syngas yields of polypropylene waste were studied. The results showed that within a certain range, increasing gasification temperature and equivalence ratio could improve syngas yield, while increasing microwave power had a certain impact on syngas yield.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Environmental
Lucio Zaccariello, Raffaele Cremiato, Maria Laura Mastellone
WASTE MANAGEMENT & RESEARCH
(2015)
Article
Engineering, Environmental
Maria Laura Mastellone, Raffaele Cremiato, Lucio Zaccariello, Roberta Lotito
Article
Green & Sustainable Science & Technology
Raffaele Cremiato, Maria Laura Mastellone, Carla Tagliaferri, Lucio Zaccariello, Paola Lettieri
Article
Biotechnology & Applied Microbiology
Donatella Cimini, Lucio Zaccariello, Sergio D'Ambrosio, Licia Lama, Giovanna Ruoppolo, Olimpia Pepe, Vincenza Faraco, Chiara Schiraldi
BIOTECHNOLOGY FOR BIOFUELS
(2019)
Article
Environmental Sciences
Maria Laura Mastellone
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Energy & Fuels
Lucio Zaccariello, Maria Laura Mastellone, Luisa Ida D'Amelia, Michelina Catauro, Biagio Morrone
Article
Energy & Fuels
Fabio Montagnaro, Lucio Zaccariello
Summary: This manuscript reports on the gasification of spruce wood chips, providing data on the syngas lower heating value, specific mass and energetic yield, and chemical composition. The impact of equivalence ratio on the main process parameter is discussed.
Article
Environmental Sciences
L. Zaccariello, D. Battaglia, B. Morrone, M. L. Mastellone
Summary: The purpose of this paper is to illustrate the design basis of a pilot-scale reactor for converting putrescent and high-water content biowaste into a stabilized product using the Hydrothermal Carbonization process (HTC). The design process involved optimizing the process parameters in a bench-scale reactor and scaling up the reactor by 30 times. The new pilot-scale reactor, with a volume of 0.1 m(3), was designed and certified to operate at high temperature and pressure conditions. The process design focused on heat power, heating control, and reaction time, while the mechanical design focused on scalability, product extraction, and improving reliability and safety. The designed reactor was built, commissioned, and operated to validate the design criteria and hypotheses. The comparison between experimental results and design input confirmed the correctness of the design data but highlighted the need to enhance thermal efficiency.
WASTE AND BIOMASS VALORIZATION
(2022)
Review
Biotechnology & Applied Microbiology
Lucio Zaccariello, Fabio Montagnaro
Summary: This review article emphasizes the importance of diversifying the energy portfolio and reducing fossil fuel usage in favor of renewable energy sources, focusing specifically on biomass. The gasification process and the use of fluidized bed reactors for biomass gasification are discussed, as well as the characteristics of syngas and tar. The article also includes a case study on the gasification of civil and industrial sludges.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
Article
Forestry
Giovanna Battipaglia, Francesco Niccoli, Jerzy Piotr Kabala, Rossana Marzaioli, Teresa Di Santo, Sandro Strumia, Simona Castaldi, Milena Petriccione, Lucio Zaccariello, Daniele Battaglia, Maria Laura Mastellone, Elio Coppola, Flora Angela Rutigliano
Summary: This research found that the application of hydrochar can enhance plant growth and water use efficiency, especially under extreme heat conditions. The heat wave in summer 2022 allowed us to evaluate the performance of plants grown in hydrochar-amended soils under climate extremes.
Article
Green & Sustainable Science & Technology
Lucio Zaccariello, Maria Laura Mastellone
Summary: This study investigated the impact of gasifying agent and bed material on the co-gasification performance of coal, plastic waste, and wood. The experiments were conducted using different reactant gases and bed materials in a lab-scale bubbling fluidized bed reactor. The results showed that both the gasifying agent and bed material significantly influenced the gas composition and overall process performance. The test with oxygen-enriched air and silica sand had the highest heating value of the producer gas, while the air/steam mixture and olivine had the best performance in terms of gas yield and tar reduction.
Article
Biotechnology & Applied Microbiology
Sergio D'ambrosio, Lucio Zaccariello, Saba Sadiq, Marcella D'Albore, Giovanna Battipaglia, Maria D'Agostino, Daniele Battaglia, Chiara Schiraldi, Donatella Cimini
Summary: This study demonstrates that L. rhamnosus IMC501 can grow on and convert glucose into LA using grape stalks as a source of fermentable sugars, without the need for additional nitrogen or nutritional elements. The combination of steam explosion pre-treatment and optimized hydrolysis allowed for a cellulose conversion efficiency of about 37% and small-scale batch fermentation.
FERMENTATION-BASEL
(2023)
Proceedings Paper
Engineering, Multidisciplinary
Maria Laura Mastellone, Lucio Zaccariello
TRANSACTIONS ON ENGINEERING TECHNOLOGIES
(2015)