1,721,050 research outputs found
Technical description and performance evaluation of different packaging plastic waste management's systems in a circular economy perspective
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Waste management and clean energy production from municipal solid waste
No full textWaste-to-Energy is one of the key technologies for sustainable waste management. The book by Laura Mastellone offers a comprehensive overview of the various processes for thermal waste treatment such as incineration, pyrolysis, and gasification. It is instrumental for understanding objectives, functioning, residues, and environmental impacts of thermal processes. "Waste Management and Clean Energy Production from Municipal Solid Waste" is worthwhile reading for any expert in the field of resources and waste management
Olivine as a tar removal catalyst during fluidized bed gasification of plastic waste
No full textNatural olivine was used as bed material during the gasification of plastic waste in a pilot-scale bubbling fluidized bed reactor. The results indicate that it works as an excellent in-situ tar reduction agent, considerably improving the quality of the gas produced, in terms of low tar content, high hydrogen volume fraction and large syngas yield. The phenomena concurring to the activation of the catalyst are described together with those that can contribute to deactivate it. A phenomenological description of the different stages occurring during gasification of plastic waste in a fluidized bed of olivine particles is also reported. © 2008 American Institute of Chemical Engineers
MWCNTs production by means of pyrolysis of polyethylene-terephtalate in a bubbling fluidized bed
No full textA bubbling fluidized bed reactor 102mmID has been used as pyrolyser by feeding polyethylene-terephtalate at two different reactor temperatures. Experiments were carried out with the aim to quantify the yield and composition of gas, liquids and to characterize the solid phase. The solid phase has been characterized by means of different methods: TG-DTG allowed to obtain a preliminary indication about the nature of the different compounds present in the solid sample by means of determination of the thermal stability of their structures; SEM and TEM microscopy, coupled with EDAX analysis, allowed to investigate the morphology of solid structures and to recognize the presence of some specific elements. Different nanostructures, having different degradation temperatures, have been obtained at 600°C and at 800°C. Moreover, the effect of metals extracted by reactor walls on MWCNTs production and the activation/deactivation of this "in-situ" catalyst during pyrolysis of PET is described and supported by experimental evidences
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