ArticleACS omega2025
A Sustainable-by-Design Process for the Selective Photooxidation of Ethylbenzene in a Scalable Agitated Baffle Reactor.
Article in ACS omega, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
10 authors.
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Abstract
This study presents a sustainable-by-design approach for the selective photooxidation of ethylbenzene under continuous flow conditions using sodium anthraquinone-2-sulfonate (SAS) as a water-soluble photocatalyst. The reaction was conducted in a scalable agitated baffle reactor (SABRe) under ultraviolet (UV)-A irradiation (365 nm), enabling enhanced mixing, illumination, and gas-liquid contact. To systematically optimize the process, a four-factor central composite design based on response surface methodology (RSM) was employed, evaluating the influence of catalyst loading, liquid and gas flow rates, and light intensity. The study revealed that oxygen mass transfer from air is a key limiting factor, which was successfully addressed by implementing counter-current gas-liquid flow and increased agitation speeds. These modifications led to a significant improvement in ethylbenzene conversion and selectivity toward acetophenone. The SABRe reactor achieved a space-time yield (STY) of 14.8 g L
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