Polyolefin wastes as co-feedstock for boosting FCC performance
Polyolefin wastes are great feedstock for the fluid catalytic crackers (FCC). In our work in Fuel Processing Technology (Elsevier), we proved once more the benefits of this feedstock and step up into the best way to feed these wastes: a previous pyrolysis in delocalized units. In particular, in this work we demonstrate how polyolefins are beneficial in terms of conversion, product distribution, gasoline yield and above all, diminishing the catalyst deactivation. We have recurrently analyzed the deactivated FCC samples in order to propose a mechanism behind the mentioned positive outcomes of polyolefins. Thus, in light of our results polyolefins can be of interest as when co-fed with very heavy oil fractions, in order to cope the severe coke deposition of the latter.
Rodríguez, E., Elordi, E., Valecillos, J., Izaddoust, S., Bilbao, J., Arandes, J.M., Castaño, P., Coke Deposition and Product Distribution in the Co-Cracking de Waste Polyolefin Derived Streams and Vacuum Gas Oil under FCC Unit Conditions, Fuel Process. Technol., 192 (2019) 130-130. DOI: 10.1016/j.fuproc.2019.04.012.