Thermal-catalytic destruction of polyolephin polymers in presence of LnVO3 and LnVO4

Light olefin synthesis from a diversity of renewable and fossil feedstocks: state-of the-art and outlook

“…Also for plastic waste, the decomposition temperature varies depending on the feedstock: for PE, PP and PET degradation stops between 450 °C and 490 °C. 274…”

“…At the same time, higher LO yields are obtained from the pyrolysis of polyolefins (PE and PP in particular), compared to other plastic waste feedstocks. 274…”

“…Nonetheless, other materials have been taken into consideration for plastic waste pyrolysis. For example, Cherednichenko 274 et al studied the catalytic properties of MeVO 3 and MeVO 4 (Me = La, Gd, Lu) in the PE, PP and PET pyrolysis. Compared to the non-catalytic process, they observed an increase in LO yield, when using LaVO x and GdVO x .…”

“…Also for plastic waste, the decomposition temperature varies depending on the feedstock: for PE, PP and PET degradation stops between 450 1C and 490 1C. 274 From another point of view, the feedstock influences the process selectivity. LOs are mainly obtained by cracking the feedstock, which produces intermediates that are finally catalytically converted into the final product.…”

“…At the same time, higher LO yields are obtained from the pyrolysis of polyolefins (PE and PP in particular), compared to other plastic waste feedstocks. 274 Moreover, lignocellulosic biomass and plastic waste have been used as combined feedstock. Wang 278 et al studied the pyrolysis of paper biomass (C 76.5 wt%, HC 15.2 wt%, L 3.3 wt%) mixed with a blend of polyolefins (HDPE, PP and PET).…”