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Researchers detect broad range of emerging synthetic antioxidants in dust in e-waste recyling centers

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Now, researchers have detected a broad range of emerging synthetic antioxidants, called hindered phenol and sulfur antioxidants, in dust from electronic waste (e-waste) recycling workshops, possibly posing risks for the workers inside. 1c00866.

Waste 434
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New technology converts waste polyethylene to jet fuel in an hour

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Washington State University researchers have developed an innovative way to convert waste polyethylene plastic to ingredients for jet fuel and other valuable products, making it easier and more cost-effective to reuse plastics. The maximum yields of the jet-fuel- and lubricant-range hydrocarbons were 60.8 wt %, respectively.

Convert 436
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U Delaware team develops chemocatalytic process to convert waste polypropylene to lube oils

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Researchers at the University of Delaware have shown that ruthenium deposited on titania is an active and selective catalyst for breaking down polypropylene into valuable lubricant-range hydrocarbons with narrow molecular weight distribution and low methane formation at low temperatures of 250 °C with a modest H 2 pressure. 1c00874.

Delaware 435
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Researchers use cold-spray deposition to create thermoelectric generators for harvesting waste heat from previously inaccessible sources

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Researchers at Lawrence Livermore National Laboratory (LLNL) and collaborators have used an additive manufacturing technique, called cold-spray deposition, to create thermoelectric generators that can harvest waste heat—a huge untapped resource—from previously inaccessible sources, such as pipes with complex geometries.

Waste 304
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Researchers propose mechanochemistry-based process to recover metals from waste cathode materials; green and efficient

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A team from Central South University, Changsha, China and Shaanxi University of Science & Technology, Xi’an, China, has proposed a mechanochemistry-based process to recover metals from waste cathode materials of LiCoO 2 (LCO) and LiFePO 4 (LFP) in spent Li-ion batteries (LIBs). —Jiang et al. of Li and 88.6% M H 2 SO 4.

Waste 170
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China researchers hydrotreat waste engine oil and scrap tire oil blend to produce diesel- and jet-range fuel

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Researchers at Henan Polytechnic University in China have hydrotreated the oil derived from hydrothermal liquefaction of scrap tires (STO) with waste engine oil (WEO) using five different activated carbon-supported noble metal catalysts—Pd/C, Pt/C, Ru/C, Ir/C, and Rh/C—for the production of liquid fuels. —Lou et al.

Oil 220
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EU project HyFlexFuel converted sewage sludge and other biomasses into kerosene by hydrothermal liquefaction (HTL); SAF

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The EU-funded research project HyFlexFuel recently successfully produced biocrudes via hydrothermal liquefaction (HTL) from a variety of biomasses, including sewage sludge, food waste, manure, wheat straw, corn stover, pine sawdust, miscanthus and microalgae in a pilot-scale continuous HTL plant at Aarhus University (Denmark).

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