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Engineering in direct synthesis of hydrogen peroxide: targets, reactors and guidelines for operational conditions
Department of Chemical Engineering and Environmental Technology, University of Valladolid, Spain .
Department of Chemical Engineering and Environmental Technology, University of Valladolid, Spain .
Umeå University, Faculty of Science and Technology, Department of Chemistry. Department of Chemical Engineering, Åbo Akademi University, Turku/Åbo, Finland.
Department of Chemical Engineering and Environmental Technology, University of Valladolid, Spain .
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2014 (English)In: Green Chemistry, ISSN 1463-9262, E-ISSN 1463-9270, Vol. 16, no 5, 2320-2343 p.Article in journal (Refereed) Published
Abstract [en]

The demand for hydrogen peroxide is booming since it is considered as one of the most environmentally friendly and versatile chemical oxidants available and with a wide range of applications. The annual market close to 3000 kt/y being produced via the auto-oxidation process (with 2-ethyl anthraquinone (traditional) or amyl anthraquinone for mega-plants) is mostly supplied by the company Solvay (30%), followed by Evonik (20%) and Arkema (13%) as key intermediate. Nevertheless, the dream of direct synthesis process is close to a century year-old and it has gained momentum in research effort during the last decade with more than 15 groups active in the world. In this review, we focus the discussion on the targets, e.g. plant tonnage, the reactors and the most feasible industrial operational conditions, based on our experience, and from the point of view using the chemical engineering tools available. Thus, direct synthesis can be competitive when on-site production is required and capacities less than 10 kt/y are demanded. The total investment cost should be approximately in between 40.3±12.1 MM$ (in 2012) for a 10 kt/y size process to be comparable to the traditional process in terms of costs. Moreover, all kinds of reactors used are hereby discussed emphasizing the pros and cons; the most common ones are batch and semicontinous modes of operations. However, at the moment, demonstrations of continuous operations as well as carefully determined kinetics are needed in order to scale up the process. Finally, operational conditions, including the catalyst composition (active metal, oxidation state and support), promoters (halides and acids-pH-isoelectric point), solvents, pressure and temperature need to be carefully analysed. In our opinion, as we try to show here, H2O2 direct synthesis is a competitive process and ready for larger scale demonstration. Also, more than a hundred patents within the area support this claim, although the barries of technology demonstration and further licensing are still pending.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2014. Vol. 16, no 5, 2320-2343 p.
National Category
Chemical Sciences
URN: urn:nbn:se:umu:diva-85435DOI: 10.1039/C3GC41600CISI: 000335005200001OAI: diva2:693475
Available from: 2014-02-04 Created: 2014-02-04 Last updated: 2014-06-19Bibliographically approved

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Biasi, PierdomenicoMikkola, Jyri-Pekka
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