An Outlook on Candidate Technologies Beyond the Anthraquinone Process
Hydrogen peroxide is an essential chemical with applications ranging from water treatment to chemical synthesis. However, its current large-scale production relies on the anthraquinone auto-oxidation (AO) process, an indirect and energy-intensive route associated with a significant carbon footprint. In this paper, we examine emerging alternative production pathways, including direct hydrogen oxidation, electrochemical and bioelectrochemical systems, and plasma-based processes. By comparing these technologies with the established AO process from energetic, techno-economic, environmental, and safety perspectives, the article evaluates their potential for sustainable and decentralised H₂O₂ production and identifies the key challenges that must be overcome for industrial implementation.
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