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Propylene is one of the most essential petrochemical feedstocks, used to make high-volume chemicals such as acrylonitrile, propylene oxide, and polypropylene. The three-carbon monomer is produced mostly through naphtha cracking at petrochemical plants and fluid catalytic cracking in petroleum refineries. In both cases, fossil fuels are the main raw material. Sumitomo Chemical is developing a new technology to produce propylene directly from ethanol. Ethanol is now made mainly from crops such as sugarcane and corn, but Sumitomo points to methods emerging to make the alcohol from waste plastics, household waste, or carbon dioxide. Making propylene from such ethanol would fit with the Japanese firm's goal to be carbon neutral by 2050 . With carbon neutrality in mind, Sumitomo installed a pilot facility at its Chiba, Japan, site in 2022 that produces ethylene, a two-carbon chemical, from ethanol using technology from the French engineering firm Axens. Now Sumitomo is developing its
special to C EN Katsumori Matsuoka (Mon,) studied this question.