We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Distributed Activation Energy Model for Thermal Decomposition of Polypropylene Waste
AI summary Read the abstract
This study analysed the pyrolysis kinetics of waste polypropylene plastic using the Distributed Activation Energy Model, finding that decomposition follows a Gaussian distribution. The research supports the development of better thermal recycling processes for one of the most commonly discarded plastic types.
Abstract Thermal decomposition kinetics of Polypropylene (PP) waste is extremely important with respect to valorisation of waste plastics and production of utilizable components viz. chemicals, fuel oil & gas. The present research study focuses on pyrolysis kinetics of PP waste, which is present as a fraction of municipal plastic waste through distributed activation energy model (DAEM). The decomposition kinetics for PP follows a Gaussian distribution, where the normal distribution curves were centred corresponding to activation energy of 224 kJ/mol. The standard deviation of the distribution for the PP sample was found to be 22 kJ/mol indicating its wider distribution of decomposition range. The data validation has been carried out by comparing the rate parameter and extent of conversion values calculated through DAEM model with the Thermogravimetric analysis (TGA) experiments carried out for PP at various heating rates of 5, 10, 20 and 40 °C/min.
More Papers Like This
Kinetic and Thermodynamic Analysis of Thermal Decomposition of Waste Virgin PE and Waste Recycled PE
AI summary Read the abstract
Researchers compared the thermal decomposition kinetics and thermodynamics of waste virgin polyethylene and waste recycled polyethylene, finding that recycling exposure lowered activation energy (125-243 kJ/mol vs 181-268 kJ/mol) and reduced the energy needed for pyrolysis. Both materials followed a two-dimensional diffusion model, and the results provide guidance for designing efficient pyrolysis reactor systems for plastic waste resource recovery.
Exploration of Pyrolysis Behaviors of Waste Plastics (Polypropylene Plastic/Polyethylene Plastic/Polystyrene Plastic): Macro-Thermal Kinetics and Micro-Pyrolysis Mechanism
AI summary Read the abstract
Researchers investigated the pyrolysis behavior of three common plastics — polyethylene, polypropylene, and polystyrene — using both experimental analysis and molecular dynamics simulations. The study determined activation energies and decomposition mechanisms for each plastic type, finding that polystyrene had the lowest thermal stability, which informs strategies for plastic waste recycling through pyrolysis.
Study on Thermal Degradation Processes of Polyethylene Terephthalate Microplastics Using the Kinetics and Artificial Neural Networks Models
AI summary Read the abstract
Researchers studied the thermal degradation kinetics of PET microplastics using model-free and model-fitting methods alongside artificial neural networks, providing key parameters for optimizing pyrolysis-based recycling of plastic waste.
Pyrolysis kinetic modelling of abundant plastic waste (PET) and in-situ emissions monitoring
AI summary Read the abstract
Researchers studied the pyrolysis kinetics of PET plastic waste and monitored emissions in real time to understand thermal degradation mechanisms. The study provides kinetic parameters and emission profiles essential for scaling up pyrolysis as an environmentally sound plastic recycling method.
Pyrolysis kinetic modelling of abundant plastic waste (PET) and in-situ emissions monitoring
AI summary Read the abstract
Researchers studied the pyrolysis kinetics of PET plastic and monitored in-situ emissions to understand thermal degradation mechanisms. The kinetic parameters and emission profiles obtained are critical for designing and scaling up pyrolysis as a plastic recycling technology.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.