Catalytic co-pyrolysis behaviour and kinetics study of waste lignocellulosic non-edible seeds and Covid-19 plastic over Al2O3 catalyst
Ranjeet Kumar Mishra, Sampath Chinnam, Abhishek Sharma
Abstract
The current research centred on estimating kinetic parameters and examining the composition of pyrolysis vapours from neem seeds and COVID-19 waste nitrile gloves (NG) using Pyro-GC–MS. Owing to the intricacy of the co-pyrolysis process, kinetic parameters were studied using KAS, OFW, FM, and VZ models. Biomass and plastic were mixed in different proportions (1:1, 3:1, and 5:1), whereas feed to catalyst was mixed at 3:1, 5:1 and 8:1, respectively. The estimation of the kinetic parameters of co-pyrolysis of NMS and NG confirmed that the 3:1 ratio and the feeds-to-catalyst ratio at 5:1 were found to be most effective in producing maximum hot vapours. Moreover, the analysis of pyrolysis vapours confirmed that a ratio of 3:1 for (NMS to NG) and a ratio of 5:1 for feed to catalyst (NMS + NG(3:1) + Al2O3 (5:1) resulted in the highest production of hydrocarbons while decreasing the presence of acids and oxygenated compounds.