Recovering waste plastics using shape-selective nano-scale reactors as catalysts
نویسندگان
چکیده
منابع مشابه
Shape Selective Pillared Clay Catalysts for P-Xylene Production
Shape selective xylene production is very important in the polymer industry because of its extensive use as raw material for monomer preparation. The acidity associated with the Lewis and Broensted centers present in the pillars interlayered clay and its textural properties allows good catalytic activity and shape selectivity toward p-xylene production. So, in the present study, ultrasonic and ...
متن کاملShape Selective Alkane Hydroxylation by Metalloporphyrin Catalysts+
A series of manganese and iron porphyrins with sterically protected pockets are shown to be shape selective alkane hydroxylation catalysts. With iodosobenzene as oxidant, good regioselectivity is observed for hydroxylation of alkanes at the least hindered methyl group by using the very sterically hindered (5,10,15,20-tetrakis(2’,4’,6’-triphenylphenyl)porphyrinato)manganese(III) acetate (MnTTPPP...
متن کاملThe degradability of biodegradable plastics in aerobic and anaerobic waste landfill model reactors.
Degradabilities of four kinds of commercial biodegradable plastics (BPs), polyhydroxybutyrate and hydroxyvalerate (PHBV) plastic, polycaprolactone plastic (PCL), blend of starch and polyvinyl alcohol (SPVA) plastic and cellulose acetate (CA) plastic were investigated in waste landfill model reactors that were operated as anaerobically and aerobically. The application of forced aeration to the l...
متن کاملThe Environmental and Financial Benefits of Recovering Plastics from Residual Municipal Waste before Energy Recovery
A life cycle assessment was carried out to investigate the environmental benefits of removing dense plastics from household waste before burning the waste in an energy from waste (EfW) facility. Such a process was found to improve the climate change and non-renewable resource depletion impacts of the waste management system. A preliminary financial assessment suggests that the value of the plas...
متن کاملPolyester synthases: natural catalysts for plastics.
Polyhydroxyalkanoates (PHAs) are biopolyesters composed of hydroxy fatty acids, which represent a complex class of storage polyesters. They are synthesized by a wide range of different Gram-positive and Gram-negative bacteria, as well as by some Archaea, and are deposited as insoluble cytoplasmic inclusions. Polyester synthases are the key enzymes of polyester biosynthesis and catalyse the conv...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Sustainability
سال: 2019
ISSN: 2398-9629
DOI: 10.1038/s41893-018-0195-9