Pyrolysis of end of life tyres (ELTs) present a promising alternative to their incineration or classical product recovery using mechanical means. It can produce light hydrocarbons (HCs) and other valuable chemicals as part of the pyro-gas stream it generates. In this work, two grades of tyres namely a fresh (virgin) one and a waste disposed ELTs, were used as a feedstock to analyse their pyro-gas constituents. There wasn't much difference in the maximum conversion rate between both tyre grades where the fresh tyres had an estimated 15.17% conversion and the ELTs was 13.45% conversion (both at 800 °C). The difference herein was attributed to release of free radicals prior to subjecting the samples to pyrolysis due to their history. The analysis of the pyro-gas samples showed a large make of light hydrocarbon (HC) products, namely methane (CH/C), ethane (CH/C), ethylene (CH), propane (CH/C), propylene (CH), n-butane (CH), butadiene compounds, carbon mono and dioxide (CO,CO). Light HCs mimciking natural gas were more abundant in the case of ELTs were C was estimated as 14.53% at 500 °C and 16.73% at 800 °C. C was also estimated higher than the fresh tyres where a 11.78% at 500 °C was noted and 7.67% at 800 °C. It can be recommended that future integration plans in oil and gas ventures, namely refinery and petrochemical complexes, are to start taking responsible measures towards the environment by substituting part of their operations with sustainable feedstock such as ELTs.
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http://dx.doi.org/10.1016/j.jenvman.2022.115852 | DOI Listing |
Materials (Basel)
December 2024
Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland.
This study investigates how recycled metal fibres from End-of-Life Tyres (ELTs) affect both microwave heating efficiency and crack healing properties in dense asphalt mixtures. The aim is to improve tyre recyclability by using their fibres in asphalt and exploring their self-healing potential with microwave heating. To achieve this, four dense asphalt mixture designs were studied in the laboratory.
View Article and Find Full Text PDFPhilos Trans A Math Phys Eng Sci
October 2024
Department of Engineering, University of Exeter, Exeter EX4 4QF, UK.
This study presents an experimental investigation of the mechanical behaviour of recycled rubber pads coated with graphene nanoplatelets. The investigation is part of an effort to develop a novel rubber-based composite that aims to reroute rubber from end-of-life tyres from illegal landfills and incineration back into the market in the form of a novel composite for vibration isolation. Graphene nanoplatelets were deposited on rubber pads via ultrasonic spray coating.
View Article and Find Full Text PDFMaterials (Basel)
August 2024
Department of Mechanical Wood Technology, Faculty of Wood Technology, Poznan University of Life Sciences, Wojska Polskiego 38/42, 60-627 Poznan, Poland.
Combining steel with wood has been practised for many years. The issue is related to two main areas, i.e.
View Article and Find Full Text PDFSci Total Environ
November 2024
Department of Molecular Ecology, Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, D-60325 Frankfurt am Main, Germany; LOEWE Centre of Translational Biodiversity Genomics, Senckenberg Biodiversity and Climate Research Centre, Georg-Voigt-Str. 14-16, D-60325 Frankfurt am Main, Germany; Institute for Molecular and Organismic Evolution, Johannes Gutenberg University, Johann-Joachim-Becker-Weg 7, D-55128 Mainz, Germany.
The presence of tyre and road wear particles (TRWP) in the environment is an underestimated threat due to their potential impact on ecosystems and human health. However, their mode of action and potential impacts on aquatic ecosystems remain largely unknown. In the present study, we adopted a sediment exposure scenario to investigate the influence of sediment coming from an urban runoff sedimentation basin on the life cycle of Chironomus riparius.
View Article and Find Full Text PDFCurr Res Parasitol Vector Borne Dis
April 2024
Centre for Vector-Borne Disease Research, Department of Medical Microbiology, University of Ghana Medical School, University of Ghana, Legon, Ghana.
is an important vector of arboviral diseases including dengue and yellow fever. Despite the wide distribution of this mosquito species, there are limited data on the ecology of . in Ghana.
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