Scientists at Oak Ridge National Laboratory have developed an innovative technology that can convert typically unrecyclable mixed plastic waste into useful chemicals. Using an efficient organocatalyst, the process requires less energy and emits fewer greenhouse gases compared to conventional methods.
Valuable chemicals are selectively produced from mixed plastic waste by an ORNL-developed plastic deconstruction process.
(Source: Tomonori Saito, Md Arifuzzaman and Adam Malin, ORNL/U.S. Dept. of Energy)
Almost 80 % of plastic in the waste stream ends up in landfills or accumulates in the environment. Oak Ridge National Laboratory scientists have developed a technology that converts a conventionally unrecyclable mixture of plastic waste into useful chemicals, presenting a new strategy in the toolkit to combat global plastic waste.
The technology, invented by Ornl’s Tomonori Saito and former postdoctoral researcher Md Arifuzzaman, uses an exceptionally efficient organocatalyst that allows selective deconstruction of various plastics, including a mixture of diverse consumer plastics. Arifuzzaman, now with Re-Du, is a current Innovation Crossroads fellow.
Production of chemicals from plastic waste requires less energy and releases fewer greenhouse gases than conventional petroleum-based production. Such a pathway provides a critical step toward a net-zero society, the scientists said.
“This concept offers highly efficient and low-carbon chemical recycling of plastics and presents a promising strategy toward establishing closed-loop circularity of plastics,” said Saito, corresponding author of the study published in Materials Horizons.
(ID:49710002)
Stand vom 23.03.2021
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