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Amine - modified SBA-15 / Xinlong Yan in Industrial & engineering chemistry research, Vol. 50 N° 6 (Mars 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 6 (Mars 2011) . - pp. 3220-3226 Titre : Amine - modified SBA-15 : effect of pore structure on the performance for CO2 capture Type de document : texte imprimé Auteurs : Xinlong Yan, Auteur ; Lei Zhang, Auteur ; Ying Zhang, Auteur Année de publication : 2011 Article en page(s) : pp. 3220-3226 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Carbon  dioxide  Pore  structure Résumé : Several SBA-15 silica materials with different pore structures were synthesized and functionalized with poly(ethyleneimine) (PEI). The as-prepared materials were characterized by XRD, SEM, TG, FT-IR, and N2 physisorption techniques followed by testing for CO2 capture using a N2 stream containing 15.1 v/v% CO2 in the temperature range of 30- 75 °C. The results showed that the CO2 adsorption capacity linearly increased with the total pore volume of the SBA-15 phases in the tested temperature range (R2 > 0.94). Temperature also showed a strong influence on CO2 adsorption capacity. SBA-15 material with the largest pore volume (1.14 cm3 g-1) exhibited the largest CO2 adsorption capacity (105.2 mg g-1 adsorbent) with 15.1 v/v% CO2 in N2 at 75 °C and atmospheric pressure. Pore size was found not to be the main factor influencing the CO2 adsorption capacity of these PEI-modified SBA-15 materials. Adsorption-desorption cycles (12) revealed that the adsorbents with PEI loaded inside the pore channels were found to be quite stable, as they retained their CO2 adsorption capacity with many cycles. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23944487 [article] Amine - modified SBA-15 : effect of pore structure on the performance for CO2 capture [texte imprimé] / Xinlong Yan, Auteur ; Lei Zhang, Auteur ; Ying Zhang, Auteur . - 2011 . - pp. 3220-3226. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 6 (Mars 2011) . - pp. 3220-3226 Mots-clés : Carbon  dioxide  Pore  structure Résumé : Several SBA-15 silica materials with different pore structures were synthesized and functionalized with poly(ethyleneimine) (PEI). The as-prepared materials were characterized by XRD, SEM, TG, FT-IR, and N2 physisorption techniques followed by testing for CO2 capture using a N2 stream containing 15.1 v/v% CO2 in the temperature range of 30- 75 °C. The results showed that the CO2 adsorption capacity linearly increased with the total pore volume of the SBA-15 phases in the tested temperature range (R2 > 0.94). Temperature also showed a strong influence on CO2 adsorption capacity. SBA-15 material with the largest pore volume (1.14 cm3 g-1) exhibited the largest CO2 adsorption capacity (105.2 mg g-1 adsorbent) with 15.1 v/v% CO2 in N2 at 75 °C and atmospheric pressure. Pore size was found not to be the main factor influencing the CO2 adsorption capacity of these PEI-modified SBA-15 materials. Adsorption-desorption cycles (12) revealed that the adsorbents with PEI loaded inside the pore channels were found to be quite stable, as they retained their CO2 adsorption capacity with many cycles. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=23944487

Batch distillation in a batch stripper with a side withdrawal for purification of heat - unstable compounds / Xianbao Cui in Industrial & engineering chemistry research, Vol. 49 N° 14 (Juillet 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 14 (Juillet 2010) . - pp. 6521–6529 Titre : Batch distillation in a batch stripper with a side withdrawal for purification of heat - unstable compounds Type de document : texte imprimé Auteurs : Xianbao Cui, Auteur ; Xiaokai Zhang, Auteur ; Ying Zhang, Auteur Année de publication : 2010 Article en page(s) : pp. 6521–6529 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Distillation  process Résumé : Batch distillation in a batch stripper with a side withdrawal (BSS) for the purification of heat-unstable compounds from light and heavy impurities was investigated. The batch distillation process was simulated by a dimensionless dynamic model and optimized by simulated annealing algorithm. Batch distillation in a BSS was compared with that in a batch stripper (BS) for the purification of heat-unstable compounds with different types of degradation reactions. The recovery of heat-unstable compounds in a BSS is larger than that in a BS, especially in the case of the heat-unstable compound converting to a heavy impurity. Compared with batch distillation in a batch rectifier with a side withdrawal (BRS), batch distillation in a BSS is more suitable for purification of heat-unstable compounds that convert to a light impurity. The effects of operational and design parameters for batch distillation in a BSS were discussed according to the simulation results, such as the temperature in the top storage vessel, the location of the side withdrawal stage, the holdup in the reboiler, the reboiler ratio, and the side reflux ratio. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901558c [article] Batch distillation in a batch stripper with a side withdrawal for purification of heat - unstable compounds [texte imprimé] / Xianbao Cui, Auteur ; Xiaokai Zhang, Auteur ; Ying Zhang, Auteur . - 2010 . - pp. 6521–6529. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 14 (Juillet 2010) . - pp. 6521–6529 Mots-clés : Distillation  process Résumé : Batch distillation in a batch stripper with a side withdrawal (BSS) for the purification of heat-unstable compounds from light and heavy impurities was investigated. The batch distillation process was simulated by a dimensionless dynamic model and optimized by simulated annealing algorithm. Batch distillation in a BSS was compared with that in a batch stripper (BS) for the purification of heat-unstable compounds with different types of degradation reactions. The recovery of heat-unstable compounds in a BSS is larger than that in a BS, especially in the case of the heat-unstable compound converting to a heavy impurity. Compared with batch distillation in a batch rectifier with a side withdrawal (BRS), batch distillation in a BSS is more suitable for purification of heat-unstable compounds that convert to a light impurity. The effects of operational and design parameters for batch distillation in a BSS were discussed according to the simulation results, such as the temperature in the top storage vessel, the location of the side withdrawal stage, the holdup in the reboiler, the reboiler ratio, and the side reflux ratio. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901558c

Batch distillation in a column with a side withdrawal for separation of a ternary mixture with a decomposing reaction / Xianbao Cui in Industrial & engineering chemistry research, Vol. 48 N° 10 (Mai 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 10 (Mai 2009) . - pp. 5111–5116 Titre : Batch distillation in a column with a side withdrawal for separation of a ternary mixture with a decomposing reaction Type de document : texte imprimé Auteurs : Xianbao Cui, Auteur ; Ying Zhang, Auteur ; Tianyang Feng, Auteur Année de publication : 2009 Article en page(s) : pp. 5111–5116 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Ternary  mixture  Decomposing  reaction  Batch  distillation  column  GEAR  integration  method Résumé : The separation of a ternary mixture with a decomposing reaction was investigated in a batch distillation column with a side withdrawal (BDS). The process was simulated by a constant molar holdup model solved by the GEAR integration method and optimized by a simulated annealing algorithm. Comparing to the batch rectifier and middle vessel batch distillation column, BDS is favorable for the purification of an intermediate component from light and heavy impurities with a decomposing reaction. The effects of top reflux ratio and side reflux ratio were also investigated. Different combinations of top and side reflux ratio result in different types of product withdrawal, and the optimal operation tends to be in a large top reflux ratio and a small side reflux ratio. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8017934 [article] Batch distillation in a column with a side withdrawal for separation of a ternary mixture with a decomposing reaction [texte imprimé] / Xianbao Cui, Auteur ; Ying Zhang, Auteur ; Tianyang Feng, Auteur . - 2009 . - pp. 5111–5116. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 10 (Mai 2009) . - pp. 5111–5116 Mots-clés : Ternary  mixture  Decomposing  reaction  Batch  distillation  column  GEAR  integration  method Résumé : The separation of a ternary mixture with a decomposing reaction was investigated in a batch distillation column with a side withdrawal (BDS). The process was simulated by a constant molar holdup model solved by the GEAR integration method and optimized by a simulated annealing algorithm. Comparing to the batch rectifier and middle vessel batch distillation column, BDS is favorable for the purification of an intermediate component from light and heavy impurities with a decomposing reaction. The effects of top reflux ratio and side reflux ratio were also investigated. Different combinations of top and side reflux ratio result in different types of product withdrawal, and the optimal operation tends to be in a large top reflux ratio and a small side reflux ratio. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8017934

Catalytic hydrocracking of pyrolytic lignin to liquid fuel in supercritical ethanol / Zhe Tang in Industrial & engineering chemistry research, Vol. 49 N° 5 (Mars 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2040–2046 Titre : Catalytic hydrocracking of pyrolytic lignin to liquid fuel in supercritical ethanol Type de document : texte imprimé Auteurs : Zhe Tang, Auteur ; Ying Zhang, Auteur ; Qingxiang Guo, Auteur Année de publication : 2010 Article en page(s) : pp. 2040–2046 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Pyrolysis;  Hydrocracking;  Ethanol Résumé : Pyrolytic lignins (PLs) are the major components in fast pyrolysis bio-oils and have detrimental effects on bio-oil properties. The existence of PLs also makes bio-oil upgrading rather difficult due to their nonvolatility and thermal instability. In this study, PL produced from rice husk was hydrocracked at 260 °C in supercritical ethanol under a hydrogen atmosphere by the use of Ru/ZrO2/SBA-15 or Ru/SO42−/ZrO2/SBA-15 catalyst. Trace amount of tar or coke was produced after the hydrocracking process, and most of the PL was converted into liquid fuel consisting of stable organic compounds with a heating value as high as 34.94 MJ/kg. The liquid product distribution was investigated by gas chromatography/mass spectrometry (GC-MS). The results demonstrated that, under supercritical ethanol conditions, Ru/ZrO2/SBA-15 and Ru/SO42−/ZrO2/SBA-15 were effective catalysts to convert PL to stable organic compounds such as phenols, guaiacols, anisoles, esters, light ketones, alcohols, long-chain alkanes. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9015842 [article] Catalytic hydrocracking of pyrolytic lignin to liquid fuel in supercritical ethanol [texte imprimé] / Zhe Tang, Auteur ; Ying Zhang, Auteur ; Qingxiang Guo, Auteur . - 2010 . - pp. 2040–2046. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 5 (Mars 2010) . - pp. 2040–2046 Mots-clés : Pyrolysis;  Hydrocracking;  Ethanol Résumé : Pyrolytic lignins (PLs) are the major components in fast pyrolysis bio-oils and have detrimental effects on bio-oil properties. The existence of PLs also makes bio-oil upgrading rather difficult due to their nonvolatility and thermal instability. In this study, PL produced from rice husk was hydrocracked at 260 °C in supercritical ethanol under a hydrogen atmosphere by the use of Ru/ZrO2/SBA-15 or Ru/SO42−/ZrO2/SBA-15 catalyst. Trace amount of tar or coke was produced after the hydrocracking process, and most of the PL was converted into liquid fuel consisting of stable organic compounds with a heating value as high as 34.94 MJ/kg. The liquid product distribution was investigated by gas chromatography/mass spectrometry (GC-MS). The results demonstrated that, under supercritical ethanol conditions, Ru/ZrO2/SBA-15 and Ru/SO42−/ZrO2/SBA-15 were effective catalysts to convert PL to stable organic compounds such as phenols, guaiacols, anisoles, esters, light ketones, alcohols, long-chain alkanes. Note de contenu : Bibliogr. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9015842

Catalytic upgrading of biomass fast pyrolysis vapors with Pd/SBA-15 catalysts / Qiang Lu in Industrial & engineering chemistry research, Vol. 49 N° 6 (Mars 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 6 (Mars 2010) . - pp. 2573–2580 Titre : Catalytic upgrading of biomass fast pyrolysis vapors with Pd/SBA-15 catalysts Type de document : texte imprimé Auteurs : Qiang Lu, Auteur ; Zhe Tang, Auteur ; Ying Zhang, Auteur Année de publication : 2010 Article en page(s) : pp. 2573–2580 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Catalytic  Upgrading  Biomass  Fast  Pyrolysis  Vapors  Pd/SBA-15  Catalysts Résumé : Palladium supported on SBA-15 catalysts were developed and employed for catalytic cracking of biomass fast pyrolysis vapors using analytical pyrolysis−gas chromatography/mass spectrometry (Py-GC/MS). The Pd/SBA-15 catalysts displayed prominent capabilities to crack the lignin-derived oligomers to monomeric phenolic compounds and further convert them to phenols without the carbonyl group and unsaturated C−C bond on the side chain. Moreover, the catalysts almost completely eliminated the anhydrosugar products and decarbonylated the furan compounds. They also significantly decreased the linear aldehydes and dehydroxylated the linear ketones. In addition, the catalysts slightly decreased the acids, while methanol and hydrocarbons were increased. The above catalytic capabilities of the Pd/SBA-15 catalyst were enhanced with the increase of Pd content from 0.79 wt % to 3.01 wt %. ISSN : 08885-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901198s [article] Catalytic upgrading of biomass fast pyrolysis vapors with Pd/SBA-15 catalysts [texte imprimé] / Qiang Lu, Auteur ; Zhe Tang, Auteur ; Ying Zhang, Auteur . - 2010 . - pp. 2573–2580. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 6 (Mars 2010) . - pp. 2573–2580 Mots-clés : Catalytic  Upgrading  Biomass  Fast  Pyrolysis  Vapors  Pd/SBA-15  Catalysts Résumé : Palladium supported on SBA-15 catalysts were developed and employed for catalytic cracking of biomass fast pyrolysis vapors using analytical pyrolysis−gas chromatography/mass spectrometry (Py-GC/MS). The Pd/SBA-15 catalysts displayed prominent capabilities to crack the lignin-derived oligomers to monomeric phenolic compounds and further convert them to phenols without the carbonyl group and unsaturated C−C bond on the side chain. Moreover, the catalysts almost completely eliminated the anhydrosugar products and decarbonylated the furan compounds. They also significantly decreased the linear aldehydes and dehydroxylated the linear ketones. In addition, the catalysts slightly decreased the acids, while methanol and hydrocarbons were increased. The above catalytic capabilities of the Pd/SBA-15 catalyst were enhanced with the increase of Pd content from 0.79 wt % to 3.01 wt %. ISSN : 08885-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901198s

Hydrotreating of phenolic compounds separated from bio - oil to alcohols / Jianhua Guo in Industrial & engineering chemistry research, Vol. 51 N° 19 (Mai 2012) 

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Kinetics of transesterification of methyl acetate and n - butanol catalyzed by ionic liquid / Xianbao Cui in Industrial & engineering chemistry research, Vol. 50 N° 20 (Octobre 2011) 

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Modeling gas solubilities in the aqueous solution of methyldiethanolamine / Ying Zhang in Industrial & engineering chemistry research, Vol. 50 N° 10 (Mai 2011) 

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Novel method for preparing activated carbons with high specific surface area from rice husk / Xiaolan Song in Industrial & engineering chemistry research, Vol. 51 N° 46 (Novembre 2012) 

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One step bio-oil upgrading through hydrotreatment, esterification, and cracking / Zhe Tang in Industrial & engineering chemistry research, Vol. 48 N° 15 (Août 2009) 

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Rate-based process modeling study of CO2 capture with aqueous monoethanolamine solution / Ying Zhang in Industrial & engineering chemistry research, Vol. 48 N° 20 (Octobre 2009) 

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