Efficient upgrading of polyolefin plastics into C₅–C₁₂ gasoline alkanes over a Pt/W/Beta catalyst

Abstract

A Pt/W/Beta catalyst was developed for direct and efficient hydrogenolysis of low density polyethylene (LDPE) into C5-C12 gasoline alkanes with a high yield of 63.6 wt% (yield of C1-C13 light...

Unleashing the Power of Knowledge Extraction from Scientific Literature in Catalysis

“…Excitingly, the catalyst screening has provided useful insights to some of us who are specialized in catalysis. The searching results also matched well with some recently released literature, ,, some published after our database was generated, demonstrating the capabilities of predicting effective catalysts in plastic deconstruction. For example, a candidate catalyst named platinum tungstated-zirconia (Pt/WO 3 -ZrO 2 ) appeared frequently in relevant searching results.…”

Upcycling Plastic Wastes into Value‐Added Products by Heterogeneous Catalysis

“…Much effort has been devoted to the combination of Ni-, Pd-, and Pt-based catalysts with zeolites such as HZSM-5, HY, and beta for polyolefins cracking. [48][49][50][51][52][53] A significant achievement is attained over the bifunctional catalyst that composed of Pt nanoparticles deposited on tungstate-zirconia (Pt/WO 3 /ZrO 2 ) and HY zeolite. [54] Effective cooperation between each component was essential to obtain high activity and high yields towards liquid fuels.…”

“…A bifunctional catalyst combining solid acid that is responsible for C−C bond cracking and isomerization, and active metal that facilitates hydrogenolysis of intermediates may offer a new option to convert PE or PP into valuable branched hydrocarbons under mild conditions. Much effort has been devoted to the combination of Ni‐, Pd‐, and Pt‐based catalysts with zeolites such as HZSM‐5, HY, and beta for polyolefins cracking [48–53] …”

Enabling the Circular Economy through Chemical Recycling and Upcycling of End-of-Use Plastics

“…The catalyst produced a narrow range of gasoline grade alkanes from LLDPE, HDPE, and PP with liquid product yields as high as 74.5 wt% for HDPE. 38 Utami et al used Pt-promoted sulfated zirconia (Pt/SZr) to convert pyrolized LDPE into liquid hydrocarbons with a 74.60 wt% yield (0.15% solid and 25.25% gas) in a flowreactor at 250°C and 1 bar H2 for 1 h. The liquid product had 67.5 wt% of hydrocarbons in the gasoline range (C5-C12) and 7.1 wt% in the diesel range (C13-C20). 39 Furthermore, a higher acidity of the catalyst, controlled with Pt loading, was found to be concomitant with higher yields of gasoline-range hydrocarbons (C5-C12).…”