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SOx oxidation and adsorption by CeO2/MgO / Lei Jiang in Industrial & engineering chemistry research, Vol. 50 N° 8 (Avril 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 8 (Avril 2011) . - pp. 4398–4404 Titre : SOx oxidation and adsorption by CeO2/MgO : synergistic effect between CeO2 and MgO in the fluid catalytic cracking process Type de document : texte imprimé Auteurs : Lei Jiang, Auteur ; Min Wei, Auteur ; Xiangyu Xu, Auteur Année de publication : 2011 Article en page(s) : pp. 4398–4404 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : SOx  Oxidation  Fluid  catalytic Résumé : The sulfur-transfer catalyst plays an important role in the fluid catalytic cracking (FCC) process through which the sulfur oxides (SOx) are removed from flue gas. This work reports the synergistic effect between CeO2 and MgO on the SOx oxidation and adsorption in the FCC process. The CeO2 acts as the oxidation promoter, while MgO is the active phase for SOx adsorption. The influence of crystal size on the synergistic effect between CeO2 and MgO on the SOx oxidation and adsorption was investigated. It was observed that the initial apparent SOx pick-up rate decreases with the increase in the CeO2 crystal size, while the maximum SOx oxidation and adsorption capacity decreases with the increase in the MgO crystal size. Therefore, this work provides a detailed understanding of the synergistic effect between CeO2 and MgO for the SOx pick-up, which is crucial for the rational design and preparation of the sulfur-transfer catalysts. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie102243y [article] SOx oxidation and adsorption by CeO2/MgO : synergistic effect between CeO2 and MgO in the fluid catalytic cracking process [texte imprimé] / Lei Jiang, Auteur ; Min Wei, Auteur ; Xiangyu Xu, Auteur . - 2011 . - pp. 4398–4404. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 8 (Avril 2011) . - pp. 4398–4404 Mots-clés : SOx  Oxidation  Fluid  catalytic Résumé : The sulfur-transfer catalyst plays an important role in the fluid catalytic cracking (FCC) process through which the sulfur oxides (SOx) are removed from flue gas. This work reports the synergistic effect between CeO2 and MgO on the SOx oxidation and adsorption in the FCC process. The CeO2 acts as the oxidation promoter, while MgO is the active phase for SOx adsorption. The influence of crystal size on the synergistic effect between CeO2 and MgO on the SOx oxidation and adsorption was investigated. It was observed that the initial apparent SOx pick-up rate decreases with the increase in the CeO2 crystal size, while the maximum SOx oxidation and adsorption capacity decreases with the increase in the MgO crystal size. Therefore, this work provides a detailed understanding of the synergistic effect between CeO2 and MgO for the SOx pick-up, which is crucial for the rational design and preparation of the sulfur-transfer catalysts. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie102243y

Synthesis of an N , N - Bis(phosphonomethyl)glycine anion - intercalated layered double hydroxide and its selective infrared absorption effect in low density polyethylene films for use in agriculture / Lijing Wang in Industrial & engineering chemistry research, Vol. 49 N° 11 (Juin 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 11 (Juin 2010) . - pp. 5339–5346 Titre : Synthesis of an N , N - Bis(phosphonomethyl)glycine anion - intercalated layered double hydroxide and its selective infrared absorption effect in low density polyethylene films for use in agriculture Type de document : texte imprimé Auteurs : Lijing Wang, Auteur ; Xiangyu Xu, Auteur ; David G. Evans, Auteur Année de publication : 2010 Article en page(s) : pp. 5339–5346 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Hydroxide Résumé : Reaction under alkaline conditions of N,N-bis(phosphonomethyl)glycine (glyphosine, GLYP) with an MgAl-NO3-layered double hydroxide (LDH) precursor, prepared by a method involving separate nucleation and aging steps (SNAS) led to the replacement of the interlayer nitrate anions by GLYP3− anions. The resulting MgAl-GLYP-LDH was characterized by X-ray diffraction (XRD), Fourier transfrom infrared (FT-IR), thermogravimetry and differential therm analysis (TG-DTA), elemental analysis, and scanning electron microscopy (SEM). MgAl-GLYP-LDH was mixed with low density polyethylene (LDPE) using a masterbatch method. LDPE films filled with MgAl-GLYP-LDH showed a higher mid- to far-infrared absorption than films filled with MgAl-CO3-LDH in the 7−25 μm range, particularly in the key 9−11 μm range required for application in agricultural plastic films. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9016978 [article] Synthesis of an N , N - Bis(phosphonomethyl)glycine anion - intercalated layered double hydroxide and its selective infrared absorption effect in low density polyethylene films for use in agriculture [texte imprimé] / Lijing Wang, Auteur ; Xiangyu Xu, Auteur ; David G. Evans, Auteur . - 2010 . - pp. 5339–5346. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 11 (Juin 2010) . - pp. 5339–5346 Mots-clés : Hydroxide Résumé : Reaction under alkaline conditions of N,N-bis(phosphonomethyl)glycine (glyphosine, GLYP) with an MgAl-NO3-layered double hydroxide (LDH) precursor, prepared by a method involving separate nucleation and aging steps (SNAS) led to the replacement of the interlayer nitrate anions by GLYP3− anions. The resulting MgAl-GLYP-LDH was characterized by X-ray diffraction (XRD), Fourier transfrom infrared (FT-IR), thermogravimetry and differential therm analysis (TG-DTA), elemental analysis, and scanning electron microscopy (SEM). MgAl-GLYP-LDH was mixed with low density polyethylene (LDPE) using a masterbatch method. LDPE films filled with MgAl-GLYP-LDH showed a higher mid- to far-infrared absorption than films filled with MgAl-CO3-LDH in the 7−25 μm range, particularly in the key 9−11 μm range required for application in agricultural plastic films. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9016978