Catalytic Upcycling of Polyolefins
The large production volumes of commodity polyolefins (specifically, polyethylene,
polypropylene, polystyrene, and poly (vinyl chloride)), in conjunction with their low unit …
polypropylene, polystyrene, and poly (vinyl chloride)), in conjunction with their low unit …
Beyond conventional degradation: catalytic solutions for polyolefin upcycling
L Gan, Z Dong, H Xu, H Lv, G Liu, F Zhang… - CCS …, 2024 - chinesechemsoc.org
Polyolefins (POs, ie, polyethylenes, ethylene/α-olefin copolymers, and polypropylenes) are
the most ubiquitous synthetic macromolecular materials in modern life. Their widespread …
the most ubiquitous synthetic macromolecular materials in modern life. Their widespread …
Catalytic Hydrogenolysis of Polyethylene Under Reactive Separation
Deconstruction of polyolefins by catalytic hydrogenolysis is typically accompanied by the
generation of undesired light gases. At reaction temperatures, the desired liquid products …
generation of undesired light gases. At reaction temperatures, the desired liquid products …
Coupled conversion of polyethylene and carbon dioxide catalyzed by a zeolite–metal oxide system
Y Liu, B Ma, J Tian, C Zhao - Science Advances, 2024 - science.org
Zeolite-catalyzed polyethylene (PE) aromatization achieves reduction of the aromatic yield
via hydrogenation and hydrogenolysis reactions. The hydrogen required for CO2 …
via hydrogenation and hydrogenolysis reactions. The hydrogen required for CO2 …
Driving selective upcycling of mixed polyethylene waste with table salt
Advanced recycling offers a unique opportunity for the circular economy, especially for
mixed and contaminated plastics that are difficult to recycle mechanically. However …
mixed and contaminated plastics that are difficult to recycle mechanically. However …
Precise activation of C–C bonds for recycling and upcycling of plastics
H Ran, S Zhang, W Ni, Y Jing - Chemical Science, 2024 - pubs.rsc.org
The rapid accumulation of plastic waste has led to a severe environmental crisis and a
noticeable imbalance between manufacturing and recycling. Fortunately, chemical …
noticeable imbalance between manufacturing and recycling. Fortunately, chemical …
Supported Platinum Nanoparticles Catalyzed Carbon–Carbon Bond Cleavage of Polyolefins: Role of the Oxide Support Acidity
Supported platinum nanoparticle catalysts are known to convert polyolefins to high-quality
liquid hydrocarbons using hydrogen under relatively mild conditions. To date, few studies …
liquid hydrocarbons using hydrogen under relatively mild conditions. To date, few studies …
A Supported Ziegler-Type Organohafnium Site Metabolizes Polypropylene
KK Samudrala, MP Conley - Journal of the American Chemical …, 2023 - ACS Publications
Cp2Hf (CH3) 2 reacts with silica containing strong aluminum Lewis sites to form Cp2Hf–
13CH3+ paired with aluminate anions. Solid-state NMR studies show that this reaction also …
13CH3+ paired with aluminate anions. Solid-state NMR studies show that this reaction also …
Chloride and hydride transfer as keys to catalytic upcycling of polyethylene into liquid alkanes
Transforming polyolefin waste into liquid alkanes through tandem cracking‐alkylation
reactions catalyzed by Lewis‐acid chlorides offers an efficient route for single‐step plastic …
reactions catalyzed by Lewis‐acid chlorides offers an efficient route for single‐step plastic …
Population Balance Equations for Reactive Separation in Polymer Upcycling
Many polymer upcycling efforts aim to convert plastic waste into high-value liquid
hydrocarbons. However, the subsequent cleavage of middle distillates to light gases can be …
hydrocarbons. However, the subsequent cleavage of middle distillates to light gases can be …