Acidic and catalytic properties of modified clay for removing trace olefin from aromatics and its industrial test / Xin Pu in Industrial & engineering chemistry research, Vol. 51 N° 43 (Octobre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 43 (Octobre 2012) . - pp. 13891-13896 Titre : Acidic and catalytic properties of modified clay for removing trace olefin from aromatics and its industrial test Type de document : texte imprimé Auteurs : Xin Pu, Auteur ; Nai-wang Liu, Auteur ; Zheng-hong Jiang, Auteur Année de publication : 2013 Article en page(s) : pp. 13891-13896 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Catalytic reaction Résumé : The commercial clay modified with zeolite and La2O3 was characterized by thermoprogrammed desorption (t.p.d.) of NH, and pyridine adsorption followed by Fourier transform infrared spectroscopy (FTIR). The result showed that the weak Lewis acid plays an important role in the alkylation reaction between olefin and aromatics which obeyed the carbonium ion mechanism. The industrial test was conducted in the 450kt/a industrial PX device at Sinopec Zhenhai Company for removing trace olefins from aromatics: It has been proved that the life cycle of the catalyst was 5.3 times that of the commercial clay. The kinetics formula for deactivation rates was explored and the result showed that the rate of clay was much higher than the catalyst deactivation rate. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26593314 [article] Acidic and catalytic properties of modified clay for removing trace olefin from aromatics and its industrial test [texte imprimé] / Xin Pu, Auteur ; Nai-wang Liu, Auteur ; Zheng-hong Jiang, Auteur . - 2013 . - pp. 13891-13896. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 43 (Octobre 2012) . - pp. 13891-13896 Mots-clés : Catalytic reaction Résumé : The commercial clay modified with zeolite and La2O3 was characterized by thermoprogrammed desorption (t.p.d.) of NH, and pyridine adsorption followed by Fourier transform infrared spectroscopy (FTIR). The result showed that the weak Lewis acid plays an important role in the alkylation reaction between olefin and aromatics which obeyed the carbonium ion mechanism. The industrial test was conducted in the 450kt/a industrial PX device at Sinopec Zhenhai Company for removing trace olefins from aromatics: It has been proved that the life cycle of the catalyst was 5.3 times that of the commercial clay. The kinetics formula for deactivation rates was explored and the result showed that the rate of clay was much higher than the catalyst deactivation rate. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26593314

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