In this two-step process, hydrogen (H 2) from naphtha cracking is selectively combusted by a redox catalyst with its lattice oxygen first. ![]() We propose an alternative process for the redox oxy-cracking (ROC) of naphtha. Ethylene production by the thermal cracking of naphtha is an energy-intensive process (up to 40 GJ heat per tonne ethylene), leading to significant formation of coke and nitrogen oxide (NO x), along with 1.8–2 kg of carbon dioxide (CO 2) emission per kilogram of ethylene produced.
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