Instead of landfilling or incinerating waste plastic, convert it to automotive fuel in the form of hydrogen. A hydrogen-generating process developed at Swansea University, Wales, is less cost-intensive than recycling Discarded plastic could be a source of hydrogen fuel for cars. Source: Swansea UniversityDiscarded plastic could be a source of hydrogen fuel for cars. Source: Swansea Universitybecause any kind of plastic can be used and it does not need to be washed first.

Polyethylene terephthalate (PET) and other grades of plastic, even those with oil or grease residues, can be transformed into hydrogen by addition of a light-absorbing material, immersion in an alkaline solution and exposure to sunlight. The technology has yet to realize scales of industrial value but the researchers demonstrated another value add: the material remaining after hydrogen conversion can be recycled to produce new plastic. Only part of the PET is consumed to generate hydrogen and carbon dioxide, with the rest left intact in the solution.

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