Process achieves high yield and selectivity for converting polystyrene to toluene

Polystyrene (PS) is among the more difficult-to-recycle fractions of plastic waste, but could be a source of valuable aromatic petrochemicals, such as toluene. Prior approaches to convert PS to toluene have exhibited low yields and a range of products. Now, a group led by researchers at the Nanjing Forestry University and Tsinghua University has developed a process for converting PS waste to toluene in high yields and with excellent selectivity.

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