Hydrogen promotion by Co/SiO2@HZSM-5 core-shell catalyst for syngas from plastic waste gasification: The combination of functional materials

Wu, Shan-Luo; Kuo, Jia‐Hong; Wey, Ming‐Yen

doi:10.1016/j.ijhydene.2019.04.031

Cited by 24 publications

(6 citation statements)

References 54 publications

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“…It can be concluded that the pyrolysis and gasification temperature of BMW (volatiles from the pyrolysis stage enters into the reforming stage) can be reduced due to the reduced activation ener-gies in the existing forms of NCM and its derivants. 55,56 When the volatiles from BMW during the pyrolysis stage enter into the reforming stage, NCM (LiNi x Co y Mn 1−x−y O 2 ), Ni/NiO and Co/CoO (as the active cores) can accelerate the reaction rates of different reactions through the reduction of activation energy, [57][58][59] which has been confirmed by the thermochemical experiment (reduced reaction time of 15 min and pyrolysis temperature of 450-500 °C). Here, the microthermal pyrolysis of BMW can be realized during the catalytic aerogenesis process activated by NCM and its derivants.…”

Section: Mechanism Of Microthermal Catalytic Aerogenesis and Metal Co...mentioning

confidence: 72%

Microthermal catalytic aerogenesis of renewable biomass waste using cathode materials from spent lithium-ion batteries towards reversed regulated conversion and recycling of valuable metals

et al. 2023

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Section: Mechanism Of Microthermal Catalytic Aerogenesis and Metal Co...mentioning

confidence: 72%

Microthermal catalytic aerogenesis of renewable biomass waste using cathode materials from spent lithium-ion batteries towards reversed regulated conversion and recycling of valuable metals

et al. 2023

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“…Many studies focus on the design of the catalyst such that the appropriate porous arrangements are chosen to enhance selectivity and conversion. [124,[218][219][220] This is because, as with hierarchical catalysts, synthesis conditions can severely affect the crystallinity of the core-shell materials.…”

Section: Hierarchical and Core-shell Catalystsmentioning

confidence: 99%

“…By coating microporous zeolites with mesoporous silica‐alumina, the advantageous properties of both types of catalysts can be meshed into one material. Many studies focus on the design of the catalyst such that the appropriate porous arrangements are chosen to enhance selectivity and conversion [124,218–220] . This is because, as with hierarchical catalysts, synthesis conditions can severely affect the crystallinity of the core‐shell materials.…”

Section: Heterogeneous Catalystsmentioning

confidence: 99%

The Use of Heterogeneous Catalysis in the Chemical Valorization of Plastic Waste

2020

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, respectively. Her graduate research focused on the fundamental understanding of deoxygenation mechanisms for biomass probe molecules on single crystals and thin films. During her graduate career, she received the DOE Science Graduate Student Research (SCGSR) award (2019) and conducted surface science research at Brookhaven National Lab. She now is a postdoctoral researcher at the University of Wisconsin-Madison. Her research focuses on surface spectroscopy and controlled design of heterogeneous catalysts. Melissa C. Cendejas received her B.A. (2016) in Chemistry and English from Williams College. There, she worked on the synthesis of conjugated organic molecules and phosphorusbased surfactants. She then started her PhD in Chemistry at the University of Wisconsin-Madison under the supervision of Prof. Ive Hermans. She studies active site formation on boron-based catalysts. She received the DOE Office of Science Graduate Student Research (SCGSR) award (2020) to perfrom in situ x-ray spectroscopy of catalysts at Stanford Synchrotron Radiation Lightsourse. Prof. Dr. Ive Hermans obtained his Ph.D. from KU Leuven University in Belgium in 2006. In addition to his scientific education, he also holds a postgraduate degree in Business Administration (KU Leuven, 2006). After postdoctoral research on in situ spectroscopy and reaction engineering with Prof. Alfons Baiker, he became assistant professor for heterogeneous catalysis (spring 2008) at ETH Zurich in Switzerland. January 2014, Prof. Hermans moved to the University of Wisconsin-Madison, holding a dual appointment in the Department of Chemistry and the Department of Chemical and Biological Engineering. His group focuses on the mechanistic understanding of catalytic technology using a variety of techniques.

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“…Various authors have examined the gasification of plastics along with biomass, coal and other feedstocks for syngas and hydrogen production with varying degrees of success. [31][32][33][34][35][36][37][38] Xiao et al 31 examined the fluidized bed gasification of PP-based plastic wastes using air as the gasification medium. The study examined the parametric effects of the gasification parameters namely; equivalence ratio (ER), bed height (H) and fluidization velocity (μ f ) on the product distribution, gas yield, gas composition, and syngas heating value.…”

Section: Gasificationmentioning

confidence: 99%

“…Likewise, the study by Wilk and Hofbauer 36 employed a fluidized bed steam dual gasifier to examine the co-gasification of mixed plastic wastes. In another study, Wu et al 35 investigated catalytic gasification of plastic wastes using Co/SiO 2 fused H-ZSM-5 core-shell catalyst for promoting hydrogen production from syngas. The findings showed that the catalyst enhanced syngas reforming from plastic gasification resulting in $ 90% hydrogen production, while maintaining catalytic stability over the 15 h under examination.…”

Section: Gasificationmentioning

confidence: 99%

Emerging trends in sustainable treatment and valorisation technologies for plastic wastes in Nigeria: A concise review

Nyakuma

Ivase²

2021

Env Prog and Sustain Energy

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The article presents an overview of the status, challenges, and prospects of current and emerging trends for the sustainable treatment and valorisation technologies of plastic wastes. The proliferation is ascribed to the growing population, living standards, and use of low cost, unbiodegradable, and chemically resistant plastic wastes in Nigeria. This scenario is exacerbated by the lack of comprehensive strategies for the collection, transport, segregation, and management of plastic wastes. Currently, plastic wastes treatment is accomplished by open-air burning, dumping, and landfilling. More advanced technologies, such as thermal (incineration, gasification), chemical (catalytic cracking and selective dissolution), and biological (microbial degradation) methods, are also utilized for treatment and valorisation. However, these high-cost, obsolete, and inefficient technologies result in GHG emissions, toxic fumes, toxins and leachates. Hence, novel technologies for the reuse, recycling, reduction, and valorisation of plastic wastes must emphasize energy, materials, and resource recovery. The article proposes the upcycling of plastic wastes into carbon nanomaterials (carbon microspheres, carbon nanofibers (CNFs), graphene flakes, carbon nanotubes), polymeric composite materials (wood-polyethylene composites, wood-fiber-reinforced plastics), biocrude/bio-oil, fuels, chemicals, and char through solvent/solvothermal treatment and plasma conversion. Solvent/solvothermal treatment can effectively treat and upcycle plastic wastes along with the removal of toxic, recalcitrant and bio-accumulative pollutants such as brominated flame retardants and organophosphorus flame retardants. However, the study identified numerous challenges that currently hamper plastic wastes disposal, management, and valorisation. Hence, sustainable and socially friendly approaches for plastic waste management and valorisation are required to address their short-and long-term impacts on human health, safety and the environment in Nigeria.

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Hydrogen promotion by Co/SiO2@HZSM-5 core-shell catalyst for syngas from plastic waste gasification: The combination of functional materials

Cited by 24 publications

References 54 publications

Microthermal catalytic aerogenesis of renewable biomass waste using cathode materials from spent lithium-ion batteries towards reversed regulated conversion and recycling of valuable metals

Microthermal catalytic aerogenesis of renewable biomass waste using cathode materials from spent lithium-ion batteries towards reversed regulated conversion and recycling of valuable metals

The Use of Heterogeneous Catalysis in the Chemical Valorization of Plastic Waste

Emerging trends in sustainable treatment and valorisation technologies for plastic wastes in Nigeria: A concise review

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