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Artículo

Quantitative Raman determination of hydrogen peroxide using the solvent as internal standard: Online application in the direct synthesis of hydrogen peroxide

Moreno, T.; Morán López, M. A.; Huerta Illera, I.; Piqueras, Cristian MartinIcon ; Sanz Arranz, A.; García Serna, J.; Cocero, María José
Fecha de publicación: 02/2011
Editorial: Elsevier Science Sa
Revista: Chemical Engineering Journal
ISSN: 1385-8947
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ingeniería Química

Resumen

H2O2 concentrations in aqueous solutions have been determined by means of a 532nm Raman spectrometer. H2O2 is a highly demanded green oxidant agent, and its direct synthesis from H2 and O2 is a promising alternative to the traditional production process. Raman spectroscopy is a fast, non-destructive and reliable analytical technique for H2O2 quantification, which avoids the drawbacks of traditional iodometric determinations (sample extraction, preparation of the reagents and a long time of analysis). A high pressure view cell has been designed to facilitate the measuring at high pressures, which are often found in a direct synthesis process. A thorough calibration model has been developed, and it has been validated at high pressure (5.0MPa) and temperature (up to 45°C). The solvent (water) was used as internal standard to correct multiplicative distortions. The validation of the analytical technique produced reproducible and accurate results compared against classic iodometric titration, allowing the use of a single calibration model for a range of reaction conditions. The feasible use of Raman spectroscopy for real-time quantitative reaction monitoring has been established by analysing the decomposition reaction of H2O2 under different conditions. © 2010 Elsevier B.V.
Palabras clave: H2o2 Decomposition , H2o2 Determination , H2o2 Direct Synthesis , Raman Spectroscopy , Reaction Monitoring
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/57731
DOI: https://dx.doi.org/10.1016/j.cej.2010.11.068
URL: https://www.sciencedirect.com/science/article/pii/S1385894710011642
Colecciones
Articulos(PLAPIQUI)
Articulos de PLANTA PILOTO DE INGENIERIA QUIMICA (I)
Citación
Moreno, T.; Morán López, M. A.; Huerta Illera, I.; Piqueras, Cristian Martin; Sanz Arranz, A.; et al.; Quantitative Raman determination of hydrogen peroxide using the solvent as internal standard: Online application in the direct synthesis of hydrogen peroxide; Elsevier Science Sa; Chemical Engineering Journal; 166; 3; 2-2011; 1061-1065
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