Documents disponibles écrits par cet auteur

Optimization of extraction process and kinetics of sterculia foetida seed oil and its process augmentation for biodiesel production / Pandian Sivakumar in Industrial & engineering chemistry research, Vol. 51 N° 26 (Juillet 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 8992-8998 Titre : Optimization of extraction process and kinetics of sterculia foetida seed oil and its process augmentation for biodiesel production Type de document : texte imprimé Auteurs : Pandian Sivakumar, Auteur ; Karuppiah Subramanian Parthiban, Auteur ; Padmanaban Sivakumar, Auteur Année de publication : 2012 Article en page(s) : pp. 8992-8998 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Production  Kinetics  Extraction  process  Optimization Résumé : This article reports optimization and kinetic studies on extraction of Sterculia foetida seed oil and process optimization for biodiesel production from the same. The oil extraction follows first-order kinetics, and the yield was found to reach a maximum of 55.58 wt % for a 1:12 seed-to-hexane weight ratio. The activation energy and activation thermodynamic parameters at 338 K were determined as Ea = 69.441 kJ mol―1, ΔH‡ = 66.63 kJ mol―1, ΔS‡ = ―238.07 J mol―1 K―1, and ΔG‡ = 147.09 kJ mol―1. Complete physicochemical properties of the oil were analyzed using standard methods. The low acid value of 0.42 mg of KOH g―1 for fresh oil enables alkali catalytic transesterification. Different biodiesel production parameters including methanol-to-oil molar ratio, catalyst concentration, and reaction temperature were examined. An optimum yield of 95.4 wt % with a conversion of 98.91% was achieved at values of 6:1, 0.9 wt %, and 338 K, respectively. The fuel properties of the produced biodiesel were compared with the ASTM D6751 biodiesel standard. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26107456 [article] Optimization of extraction process and kinetics of sterculia foetida seed oil and its process augmentation for biodiesel production [texte imprimé] / Pandian Sivakumar, Auteur ; Karuppiah Subramanian Parthiban, Auteur ; Padmanaban Sivakumar, Auteur . - 2012 . - pp. 8992-8998. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 26 (Juillet 2012) . - pp. 8992-8998 Mots-clés : Production  Kinetics  Extraction  process  Optimization Résumé : This article reports optimization and kinetic studies on extraction of Sterculia foetida seed oil and process optimization for biodiesel production from the same. The oil extraction follows first-order kinetics, and the yield was found to reach a maximum of 55.58 wt % for a 1:12 seed-to-hexane weight ratio. The activation energy and activation thermodynamic parameters at 338 K were determined as Ea = 69.441 kJ mol―1, ΔH‡ = 66.63 kJ mol―1, ΔS‡ = ―238.07 J mol―1 K―1, and ΔG‡ = 147.09 kJ mol―1. Complete physicochemical properties of the oil were analyzed using standard methods. The low acid value of 0.42 mg of KOH g―1 for fresh oil enables alkali catalytic transesterification. Different biodiesel production parameters including methanol-to-oil molar ratio, catalyst concentration, and reaction temperature were examined. An optimum yield of 95.4 wt % with a conversion of 98.91% was achieved at values of 6:1, 0.9 wt %, and 338 K, respectively. The fuel properties of the produced biodiesel were compared with the ASTM D6751 biodiesel standard. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26107456