Thermal and catalytic pyrolysis of a real mixture of post-consumer plastic waste: An analysis of the gasoline-range product

Impact of Metal Impregnation of Commercial Zeolites in the Catalytic Pyrolysis of Real Mixture of Post-Consumer Plastic Waste

“…Additionally, most of the gasoline was mid-naphtha, with percentage values ranging from 30.75% to 36.36%. In our previous work [51], the oil liquid from the thermal pyrolysis (without any catalytic material) of the same mixture of plastic waste had a distribution of 47.7% gasoline, 22.1% LCO, and 30.2% HCO. In general, it is a more liquid product richer in heavy compounds, at least in HCO-range products.…”

“…Lower gasoline production, 155.1 and 153.2 g by kg of plastic, was observed in liquid oil from the catalytic pyrolysis over native zeolite HY and HZSM-5, respectively. If the results of Table 5 are compared to those of thermal pyrolysis (240.4 g by kg of plastic for gasoline, 111.4 g by kg of plastic for LCO-range product, and 152.2 g by kg of plastic for HCO-range product), a lower production of gasoline and HCO products was observed [51]. Figure 7 shows the relationship between gasoline, LCO, and HCO product yields (data in g by kg of plastics waste) and absolute acidity (Acidity/S BET , µmol NH 3 /m 2 ) obtained from catalytic pyrolysis over native and metal-impregnated zeolites.…”

Performance of Nanosponge and Nanosheet Al- and Ga-MFI Zeolites in Catalytic Pyrolysis of Biomass and Plastics

“…In recent years, a great interest has emerged on the pyrolysis of lignocellulose residues and plastic wastes, alone or as mixtures. 1,2 In the presence of catalysts, biomass and plastic pyrolysis narrows the broad distribution of products typically obtained under thermal conditions, improving significantly the selectivity toward valuable products. A large variety of materials have been investigated in catalytic pyrolysis over the past two decades, such as activated carbons, 3 ordered mesoporous MCM-41 materials, 4 Ni/Al 2 O 3 , 5 Red Mud, 6 magnesium oxide, 7 zinc oxide, 8 and zeolites.…”

“…Pyrolysis has a very high flexibility in terms of raw materials since it can be applied to a diversity of feedstock with a different origin and nature. In recent years, a great interest has emerged on the pyrolysis of lignocellulose residues and plastic wastes, alone or as mixtures. , …”

Towards Fuels Production by a Catalytic Pyrolysis of a Real Mixture of Post-Consumer Plastic Waste

“…In particular, the pyrolysis process can convert the plastic waste into three fractions named liquid (which may have fuel properties) [5,6,7], solid (a char with a carbonaceous structure and potential applications as adsorbents or catalytic supports) [8,9,10], and gases (with a high calorific value equivalent to natural gas ~ 44 MJ/kg) at temperatures above 300 • C through thermal decomposition of the polymer structure [1,11,3]. Although, in general, pure pyrolysis is not a highly selective process, pyrolysis schemes are relatively flexible due to main operating conditions that can be manipulated to optimize product yields [3,12].…”