A one-step conversion of benzene to phenol using MEMS-based Pd membrane microreactors / Shu-Ying Ye in Chemical engineering journal, Vol. 155 N° 3 (Decembre 2009)  

Public ISBD [article]  inChemical engineering journal > Vol. 155 N° 3 (Decembre 2009) . - pp. 829-837 Titre : A one-step conversion of benzene to phenol using MEMS-based Pd membrane microreactors Type de document : texte imprimé Auteurs : Shu-Ying Ye, Auteur ; Satoshi Hamakawa, Auteur ; Shuji Tanaka, Auteur Année de publication : 2010 Article en page(s) : pp. 829-837 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : MEMS (micro-electro-mechanical system) Microreactor Pd membrane Hydrogen permeation Direct hydroxylation Benzene Phenol Index. décimale : 660 Résumé : We have developed an MEMS-based Pd membrane microreactor for one-step conversion of benzene to phenol, and also evaluated the H2 permeation characteristics through the Pd membrane before the benzene hydroxylation experiments. The conversion of benzene, selectivity and yield of phenol were investigated by varying the operation conditions. The phenol yield of 20% and benzene conversion of 54% were obtained at a reaction temperature of 200 °C. The phenol and dihydric phenols dominated the distribution of products and the hydrogenation products of from benzene and phenol were absent in the MEMS-based Pd membrane microreactor, which was very different from the macrotubular Pd membrane reactors. The effect of H2/O2 ratio on products distribution has been investigated. From the comparison of reaction results with a macrotubular Pd membrane reactor, it is figured out that the Pd membrane microreactors fabricated by MEMS technology gave a higher reaction conversion and product yield. DEWEY : 660 ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFJ-4X66S91-1&_user=6 [...] [article] A one-step conversion of benzene to phenol using MEMS-based Pd membrane microreactors [texte imprimé] / Shu-Ying Ye, Auteur ; Satoshi Hamakawa, Auteur ; Shuji Tanaka, Auteur . - 2010 . - pp. 829-837. Génie Chimique Langues : Anglais (eng) in Chemical engineering journal > Vol. 155 N° 3 (Decembre 2009) . - pp. 829-837 Mots-clés : MEMS (micro-electro-mechanical system) Microreactor Pd membrane Hydrogen permeation Direct hydroxylation Benzene Phenol Index. décimale : 660 Résumé : We have developed an MEMS-based Pd membrane microreactor for one-step conversion of benzene to phenol, and also evaluated the H2 permeation characteristics through the Pd membrane before the benzene hydroxylation experiments. The conversion of benzene, selectivity and yield of phenol were investigated by varying the operation conditions. The phenol yield of 20% and benzene conversion of 54% were obtained at a reaction temperature of 200 °C. The phenol and dihydric phenols dominated the distribution of products and the hydrogenation products of from benzene and phenol were absent in the MEMS-based Pd membrane microreactor, which was very different from the macrotubular Pd membrane reactors. The effect of H2/O2 ratio on products distribution has been investigated. From the comparison of reaction results with a macrotubular Pd membrane reactor, it is figured out that the Pd membrane microreactors fabricated by MEMS technology gave a higher reaction conversion and product yield. DEWEY : 660 ISSN : 1385-8947 En ligne : http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TFJ-4X66S91-1&_user=6 [...]

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