Experimental and Numerical-Driven Prediction of Automotive Shredder Residue Pyrolysis Pathways toward Gaseous Products

Abstract

There has been a gradual increase in the field of parts recovery from cars that are withdrawn from use. However, the disposal of automotive shredder residue (ASR) still remains a significant problem. ASR is refuse derived fuel (RDF), which contains mainly plastics, fiber sponges, and rubbers in different proportions, and therefore a thermal treatment of selected waste samples is applied. The presented research includes thermogravimetry (TG) analysis and differential thermogravimetric (DTG) analysis, as well as a proximate and an ultimate analysis of the ASR samples. The obtained results were processed and used as an input for modelling. The numerical calculations focused on the identification of the ASR’s average composition, the raw pyrolysis process product, its dry pyrolytic gas composition, and the combustible properties of the pyrolytic gases. The TGA analysis with three heating rate levels covered the temperature range from ambient to 800 °C. The thermal decomposition of the studied samples was in three stages confirmed with three peaks observed at the temperatures 280, 470, and 670 °C. The amount of solid residue grew with the heating rates and was in the range of 27–32 wt%. The numerical calculation of the pyrolysis process showed that only 0.46 kg of dry gas were formed from 1 kg of ASR. The gas yield increased with the rising temperature, and, at the same time, its calorific value decreased from 19.22 down to 14.16 MJ/m3. This is due to the decomposition of C6+ hydrocarbons and the promotion of CO formation. The thermodynamic parameters of the combustion process for a pyrolytic gas air mixture, such as the adiabatic flame temperature and laminar flame speed, were higher than for methane and were, respectively, 2073 °C and 1.02 m/s.

Experiment and Algorithm Research of Coal Direct Liquefaction Residual Oil Pyrolysis and Coking Technology Based on Lumped Kinetic Engineering

“…Direct coal liquefaction residual oil pyrolysis and coking technology, as a coal-to-liquid process, effectively provide important technical support for ensuring our country's energy supply and safety, alleviating our country's shortage of petroleum resources and other prominent and sensitive issues [1,2]. However, the existing coal rapid pyrolysis and coking process still faces problems such as low coal utilization, poor tar quality, and reprocessing pyrolysis of the liquefied residue generated at the end of the hydrolysis process [3,4]. e research on the experiment and algorithm of coal direct liquefaction residual oil pyrolysis and coking technology based on lumped kinetic engineering will help to provide a new solution to this type of problem [5,6].…”

Pyrolysis-Based Municipal Solid Waste Management in Poland—SWOT Analysis

“…RDF is treated as an alternative fuel in many countries, in contrast to Poland, where, unfortunately, from a legal point of view it is still considered as waste [16]. Currently, utilising this caloric fraction of waste in an ecological and cost-effective manner represents a huge problem for regional facilities for municipal waste treatment.…”

“…Development of sustainable MSWM requires designing appropriate strategic solutions based on the resources and strengths of an individual local government unit [11]. With the traditional landfill method facing numerous problems, such as land scarcity and Energies 2022, 15, 510 3 of 29 underground water contamination [12], there is a global interest in waste-to-energy (WTE) methods, including incineration [13,14], pyrolysis [15,16], and gasification [17,18].…”

Management of Lignocellulosic Waste towards Energy Recovery by Pyrolysis in the Framework of Circular Economy Strategy

“…Furthermore, pyrolysis and gasification seem to be, at the moment, the most reasonable and cost-effective methods for converting biomass 2 of 17 to energy [15,16]. In recent decades, increasing interest in the development of pyrolysis pathways for the production of biofuels from lignocellulosic biomass is observed [17,18]. Lignocellulosic biomass is a plant material that is not used for food or feed.…”