Response Surface Methodology: An Emphatic Tool for Optimized Biodiesel Production Using Rice Bran and Sunflower Oils

Abstract

Abstract:The current study describes the emphatic use of response surface methodology for the optimized biodiesel production using chemical and enzymatic transesterification of rice bran and sunflower oils. Optimal biodiesel yields were determined to be 65.3 ± 2.0%, 73.4 ± 3.5%, 96.5 ± 1.6%, 89.3 ± 2.0% and 41.7 ± 3.9% for rice bran oil and 65.6 ± 1.2%, 82.1 ± 1.7%, 92.5 ± 2.8%, 72.6 ± 1.6% and 50.4 ± 2.5% for sunflower oil via the transesterification catalyzed by NaOH, KOH and NaOCH 3 ,NOVOZYME-435 and A.n. Lipase, respectively. Based upon analysis of variance (ANOVA) and Response Surface plots significant impact of reaction parameters under study was ascertained. FTIR spectroscopic and HPLC methods were employed for monitoring the transesterification reaction progress while GC-MS analysis was performed to evaluate the compositional analysis of biodiesel. The fuel properties of both the rice bran and sunflower oil based biodiesel were shown to be technically compatible with the ASTM D6751 and EN 14214 OPEN ACCESSEnergies 2012, 5 3308 standards. The monitoring of exhaust emission of synthesized biodiesels and their blends revealed a marked reduction in carbon monoxide (CO) and particulate matter (PM) levels, whereas an irregular trend was observed for NO x emissions.

Efecto de la Adición de Biodiésel en el Rendimiento y la Opacidad de un Motor Diésel

“…Actualmente, se genera una masiva búsqueda del uso de aceite vegetal en los motores diésel seguido de la utilización del biodiésel con características técnicamente mejoradas en comparación con los aceites vegetales (Chen et al, 2018). Generalmente, la producción de biodiésel a través de la transesterificación de aceites vegetales es el método más reconocido y aceptado en todo el mundo (Mumtaz et al, 2012). Esté se sintetiza a partir de materia prima con un alto contenido de ácidos grasos insaturados, como los ácidos linoleico y linolénico, es más susceptible a la oxidación, considerando las modificaciones de algunas de sus propiedades como mayor número de cetano, punto de inflamabilidad y características de lubricación (Mofijur et al, 2014;Payri et al, 2011).…”

An Improvement in Biodiesel Production from Waste Cooking Oil by Applying Thought Multi-Response Surface Methodology Using Desirability Functions

“…For example, the RSM technique was applied by Mumtaz et al [35] for optimization of biodiesel production from rice bran and sunflower oils. Mansourpoor and Shariati [36] used the RSM technique to optimize the biodiesel production from sunflower oil.…”

Miscibility of Poly(hydroxybutyrate)/Poly(vinyl alcohol) Melt Blends Plasticized With Glycerol

“…2 shows the infrared spectra of the materials used (PHB, PVA, and glycerol) and of the PHB/PVA-glycerol blends. The FTIR spectrum for glycerol shows the stretching from O-H at about 3297 cm -1 , the stretching from C-H groups at 2810-2950 cm -1 and the absorption corresponding to the C-O-H groups in the region of 1400 to 1420 cm -1 [13]. For PHB and PVA [14][15][16] absorptions from O-H were observed at 1021 cm -1 , -CH2 in the interval from 1417 to 1461 cm -1 and C-H vibrations at 830 cm -1 .…”