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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.

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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.

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Li-ion battery waste used in biodiesel production from discarded vegetable oil

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Brazilian researchers have demonstrated a new chemical approach for producing biodiesel from domestic cooking oil waste by using lithium hydroxide mixed with either sodium hydroxides or potassium hydroxides as catalysts. The work marks one of the first times lithium has been used for such purposes. —Gilberto Maia de Brito.

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DOE researchers investigate economic and environmental impacts of converting wet waste to renewable diesel

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Meanwhile, wet waste feedstocks, such as animal manure and fats, oils, and greases (FOG), represent another important category of resources that could be utilized to produce MCCI bioblendstocks due to its abundant availability. An open-access paper on their results is published in the journal ACS Sustainable Chemistry & Engineering.

Waste 434
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Audi and KIT working on recycling for automotive plastics via pyrolysis oil

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Whereas plastics of the same type can often be mechanically recycled, recycling of mixed plastic waste poses a major challenge. These plastic components are processed into pyrolysis oil by chemical recycling. In the medium run, components made from pyrolysis oil can be used again in automobiles.

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Dalian team devises two-step method for synthesis of jet-range polycycloalkanes under mild conditions from plastic waste

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Researchers at the Dalian Institute of Chemical Physics in China report a two-step method for the synthesis of jet-fuel-range high-density polycycloalkanes from polycarbonate waste under mild conditions. To the best of our knowledge, there is no report about the production of high-density aviation fuel with waste plastics. …

Waste 207
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Virgin Group and Agilyx form strategic partnership to produce lower carbon aviation fuel from plastic waste

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Virgin Group and Agilyx aim to reuse plastic waste to produce synthetic crude oil that will then be refined into a lower carbon fuel. Plastic waste that otherwise would be un-recycled will be diverted from landfill and will help broaden options in the market for lower carbon fuels from the limited range available today.

Waste 170