Review
Multidisciplinary Sciences
Sasa Papuga, Milica Djurdjevic, Andrea Ciccioli, Stefano Vecchio Ciprioti
Summary: The latest findings and limitations in catalytic pyrolysis for the processing of plastic waste into valuable fuels are addressed in this review. Catalytic pyrolysis provides better results compared to thermal degradation of plastics, especially in terms of the quality of the obtained liquid hydrocarbon fuel. Various types of catalysts, such as zeolites, fluid catalytic cracking, silica-alumina catalysts, and natural clays, can be used to improve the thermal degradation of plastics. Finding affordable and effective catalysts is crucial for the commercialization of catalytic pyrolysis of plastic waste. This study summarizes the most significant results and investigates the symmetry effects of molecules on the pyrolysis process.
Article
Chemistry, Multidisciplinary
Lucia Quesada, Monica Calero, Maria Angeles Martin-Lara, Antonio Perez, Marco F. Paucar-Sanchez, Gabriel Blazquez
Summary: This study investigated the catalytic pyrolysis of polyethylene film waste to convert it into quality fuel oils. Different catalysts were used and their effects on the properties of the products were analyzed. The results showed that the catalytic pyrolysis products had lower viscosity, good calorific values, and similar physical and chemical properties to conventional fuels compared to products produced without a catalyst.
APPLIED SCIENCES-BASEL
(2022)
Article
Energy & Fuels
Ayan Lodh, Rohit Kumar Singh, Biswajit Ruj
Summary: The rapid increase in marine waste has resulted in the accumulation of plastic marine debris (PMD), which is of concern to the scientific community. PMD primarily consists of non-degradable polymeric waste, namely thermoplastics, which contain a substantial amount of energy. Proper disposal and energy reclamation of this waste have become pressing topics.
Review
Chemistry, Multidisciplinary
Carlos Marquez, Cristina Martin, Noemi Linares, Dirk De Vos
Summary: The recycling of polystyrene (PS) remains a challenge, but catalytic depolymerization can overcome these issues by producing styrene and other valuable aromatics from waste, enabling sustainable production.
MATERIALS HORIZONS
(2023)
Article
Environmental Sciences
Tewodros Kassa Dada, Md Anwarul Islam, Arun K. Vuppaladadiyam, Elsa Antunes
Summary: This study aims to synthesize hierarchical strontium loaded Y-zeolite and investigate its application in the co-pyrolysis of ironbark and plastic waste. The modified catalyst showed an increase in external surface area and total aromatic percentage, along with a decrease in acidic groups in the co-pyrolysis oil after sequential dealumination-desilication treatments.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Polymer Science
Konstantin I. Dement'ev, Stanislav P. Bedenko, Yulia D. Minina, Aniya A. Mukusheva, Olga A. Alekseeva, Timur A. Palankoev
Summary: The fast catalytic pyrolysis of polystyrene in hydrocarbon medium over zeolite catalysts was investigated at temperatures of 450-550 degrees C. The study examined the influence of reaction conditions (medium, temperature, vapor residence time, polystyrene concentration) on polymer conversion and product distribution. The results showed high polymer conversion with ethylbenzene, benzene, and toluene as the main products. The highest yield of ethylbenzene (80%) was achieved at 550 degrees C, vapor residence time of 1-2 s, and 10% polystyrene concentration in heavy cycle oil as the medium. The influence of zeolite topology on product distribution was also explored, and a possible mechanism of polystyrene pyrolysis was proposed.
Article
Energy & Fuels
Wenhao Hu, Zsuzsa Sarossy, Anker Degn Jensen, Anders Egede Daugaard, Peter Arendt Jensen
Summary: In this study, the pyrolysis of pure low density polyethylene was investigated using a lab-scale two-stage fixed-bed pyrolyzer. Different catalytic materials were used in the second reactor to upgrade the vapors. The results showed that the use of certain catalysts and higher temperatures can significantly decrease the chain length of hydrocarbons in the condensed product and convert the wax into a liquid.
Article
Engineering, Environmental
Gerardo Martinez-Narro, Phuet Prasertcharoensuk, Laura S. Diaz-Silvarrey, Liam Dixon, Anh N. Phan
Summary: This study aims to assess the use of inexpensive catalysts derived from waste biomass for the pyrolysis of mixed plastic waste to produce high-value products. The results showed that a two-stage catalytic pyrolysis method significantly enhanced the cracking process compared to conventional thermal pyrolysis. The use of a biochar catalyst also improved the gas yield and altered the composition of the gas fraction.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Shuang Wang, Hana Kim, Doyeon Lee, Yu-Ri Lee, Yooseob Won, Byung Wook Hwang, Hyungseok Nam, Ho-Jung Ryu, Kyong-Hwan Lee
Summary: In this experiment, plastic pyrolysis oil was upgraded catalytically using different catalysts in a 2-kg pyrolysis oil separation system, producing light, middle, and heavy oil fractions. Among the catalysts, Ni-based catalyst exhibited the highest deoxygenation capacity and was most suitable for producing diesel-like fractions.
Article
Green & Sustainable Science & Technology
Haoyu Xiao, Jonathan Harding, Shuaishuai Lei, Wei Chen, Sunwen Xia, Ning Cai, Xu Chen, Junhao Hu, Yingquan Chen, Xianhua Wang, Xin Tu, Haiping Yang, Hanping Chen
Summary: Plasma-catalysis pyrolysis of polypropylene was investigated in this study. Compared to conventional catalytic pyrolysis, plasma-catalysis pyrolysis increased gas products and improved the selectivity of BTX while inhibiting the production of wax. Additionally, the stability of the plasma-catalytic system was maintained with almost no variation observed after 10 cycles.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Agricultural Engineering
Jung-Hun Kim, Sungyup Jung, Jong-oh Kim, Young Jae Jeon, Eilhann E. Kwon
Summary: The study focuses on utilizing thermal-chemical process to treat unhygienic organic waste materials, and successfully valorizes OWMs by CO2-assisted pyrolysis, leading to increased syngas production.
BIORESOURCE TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Francisco Ortega, Maria Angeles Martin-Lara, Hector J. Pula, Montserrat Zamorano, Monica Calero, Gabriel Blazquez
Summary: This research aims to develop a new strategy to convert wasted COVID-19 masks into useful products through chemical recycling by pyrolysis. The results showed that pyrolysis at different temperatures yielded valuable solid (biochar), liquid (biooil), and syngas products. By using a two-stage pyrolysis catalytic reactor with sepiolite as a catalyst, the final yield of syngas product increased and the composition of biooils changed. The study also examined the effect of sepiolite regeneration on consecutive pyrolysis tests.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Environmental
Sungyup Jung, Sangyoon Lee, Xiaomin Dou, Eilhann E. Kwon
Summary: Wearing disposable face masks to protect against COVID-19 has become common during the pandemic, but the massive generation of contaminated masks is causing environmental concerns due to the release of toxic chemicals during disposal processes. A CO2-assisted thermo-chemical process is suggested as an environmentally friendly disposal method, simultaneously producing valuable fuels from the masks. The study focused on determining the major chemical constituents of disposable masks and employing pyrolysis to produce syngas and C1-2 hydrocarbons, showcasing a potential for environmentally benign removal of COVID-19 plastic waste.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Tejas M. Ukarde, Hitesh S. Pawar
Summary: The Catalytic Thermo Liquefaction (CTL) technology utilizes Cu@TiO2 catalyst to convert plastic waste into HC-Oil, providing an efficient, sustainable, and environmentally friendly energy conversion method. Experimental results show that the Cu@TiO2 catalyst with 5% metal loading achieves the highest conversion and yield in laboratory batch reactor.
Article
Chemistry, Multidisciplinary
Piyaporn Kasetsupsin, Tharapong Vitidsant, Aminta Permpoonwiwat, Naphat Phowan, Witchakorn Charusiri
Summary: Catalytic pyrolysis of waste polyethylene wax can achieve high yield and desirable product distribution, contributing to the exploration of circular economy and waste reduction. The catalysts play a crucial role in the conversion of waste polyethylene wax under specific conditions.
Review
Oncology
Sara Santos Franco, Hadas Raveh-Amit, Julianna Kobolak, Mohammed H. Alqahtani, Ali Mobasheri, Andras Dinnyes
Article
Immunology
Erika Takacs, Pal Boto, Emilia Simo, Tamas I. Csuth, Bianka M. Toth, Hadas Raveh-Amit, Attila Pap, Elek G. Kovacs, Julianna Kobolak, Szilvia Benkoe, Andras Dinnyes, Istvan Szatmari
JOURNAL OF IMMUNOLOGY
(2017)
Article
Developmental Biology
I. Bock, H. Raveh-Amit, E. Losonczi, A. C. Carstea, A. Feher, K. Mashayekhi, S. Matyas, A. Dinnyes, C. Pribenszky
REPRODUCTION FERTILITY AND DEVELOPMENT
(2016)
Article
Multidisciplinary Sciences
Davina Gale, Andrew R. J. Lawson, Karen Howarth, Mikidache Madi, Bradley Durham, Sarah Smalley, John Calaway, Shannon Blais, Greg Jones, James Clark, Peter Dimitrov, Michelle Pugh, Samuel Woodhouse, Michael Epstein, Ana Fernandez-Gonzalez, Alexandra S. Whale, Jim F. Huggett, Carole A. Foy, Gerwyn M. Jones, Hadas Raveh-Amit, Karin Schmitt, Alison Devonshire, Emma Green, Tim Forshew, Vincent Plagnol, Nitzan Rosenfeld
Article
Biochemistry & Molecular Biology
Hadas Raveh-Amit, Naama Hai, Noa Rotem-Dai, Galit Shahaf, Jacob Gopas, Etta Livneh
BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS
(2011)
Review
Geriatrics & Gerontology
Phetcharat Phanthong, Hadas Raveh-Amit, Tong Li, Yindee Kitiyanant, Andras Dinnyes
Review
Geriatrics & Gerontology
Hadas Raveh-Amit, Sara Berzsenyi, Virag Vas, Danna Ye, Andras Dinnyes
Article
Oncology
Galit Shahaf, Noa Rotem-Dai, Gabriela Koifman, Hadas Raveh-Amit, Sigal A. Frost, Etta Livneh
EXPERIMENTAL CELL RESEARCH
(2012)
Article
Biochemistry & Molecular Biology
Hadas Raveh-Amit, Adva Maissel, Jonathan Poller, Liraz Marom, Orna Elroy-Stein, Michal Shapira, Etta Livneh
MOLECULAR AND CELLULAR BIOLOGY
(2009)
Article
Chemistry, Multidisciplinary
Hadas Raveh-Amit, Michael Tsesarsky
APPLIED SCIENCES-BASEL
(2020)
Article
Chemistry, Multidisciplinary
Matthew Magnuson, Terry Stilman, Shannon Serre, John Archer, Ryan James, Xiaoyan Xia, Mitchell Lawrence, Erin Tamargo, Hadas Raveh-Amit, Avi Sharon
Summary: The application of stabilization technologies can reduce the spread of radiological contamination and decrease worker exposure to radiation. Three stabilization technologies were investigated to evaluate their ability to reduce resuspension and tracking of contamination during response activities. The results showed that the stabilization technologies provided improved stabilization, with varying effects depending on the type of surface and worker actions. The technologies also decreased the availability of respirable particles for response workers.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
Hadas Raveh-Amit, Avi Sharon, Itzhak Katra, Terry Stilman, Shannon Serre, John Archer, Matthew Magnuson
Summary: This study investigates the issue of resuspension caused by radiological contamination. Experimental results show that treating the soil with different stabilization materials can effectively limit resuspension and the stabilization effect can last for a prolonged duration, providing sufficient time for decision-making and management.
APPLIED SCIENCES-BASEL
(2022)
Article
Biophysics
Lorenzo Baronti, Tomas Hosek, Sergio Gil-Caballero, Hadas Raveh-Amit, Eduardo O. Calcada, Isabel Ayala, Andras Dinnyes, Isabella C. Felli, Roberta Pierattelli, Bernhard Brutscher
BIOPHYSICAL JOURNAL
(2017)