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Iron-based catalyst supported on sulfated alumina was proved to be highly active and selective in catalytic dehydrogenation of propane to propylene. At 560°C, 20% propylene yield along with more than 80% selectivity was obtained on 20Fe/5S–Al. It was demonstrated that sulfate species mainly existed in the form of SO42- and interacted with Fe atoms via Fe–O–S bond, leading to enhanced acidity especially...
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