scholarly journals Optimization of Gossypium arboreum seed oil biodiesel production by central composite rotatable model of response surface methodology and evaluation of its fuel properties

2014 ◽  
Vol 5 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Y Alhassan ◽  
N. Kumar ◽  
I. M. Bugaje ◽  
C Mishra
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Seed Oil ◽  
Fuel Properties ◽  
Biodiesel Production ◽  
Gossypium Arboreum ◽  
Central Composite

scholarly journals Optimization of Reducing Ffa Content of Waste Cooking Oil by Using Response Surface Methodology

2020 ◽  
Author(s):  
Sri Rizki Putri Primandari ◽  
Andril Arafat ◽  
Arwizet Karudin
Keyword(s):  
Response Surface Methodology ◽  
Optimum Condition ◽  
Response Surface ◽  
Irradiation Time ◽  
Waste Cooking Oil ◽  
Biodiesel Production ◽  
Molar Ratio ◽  
Important Process ◽  
Acid Esterification ◽  
Central Composite

Abstract Waste cooking oil has high free fatty acid (FFA). It impact to low yield of biodiesel production. Thus, reducing FFA is one of important process as feedstock of biodiesel. This study aims to investigate the optimum condition of three important process variables which are acid concentration, molar ratio of methanol and oil, and irradiation time with the 45oC of irradiation temperature for reducing FFA. The synthesis is assisted by ultrasonic irradiation. It conducted by acid esterification with H2SO4 and methanol. Optimization is conducted by Response Surface Methodology (RSM) with central composite design (CCD). The optimum condition of response for reducing FFA less than 1% were found to be 7.22:1 of methanol to oil molar ratio, 0.92% wt of H2SO4, and 26.04 minutes of irradiation time. It has been observed that ultrasonic system reduces FFA content significantly compared to conventional method.

Optimization of Supercritical CO2 Extraction of Noni (Morinda citrifolia L) Seed Oil Using Response Surface Methodology

2011 ◽  
Vol 361-363 ◽  
pp. 743-747
Author(s):  
Xin Peng Bai ◽  
Xiao Lei Zhao ◽  
Zhi Yong Guo ◽  
Xiao Qin Liu ◽  
Fang Lian Xu
Keyword(s):  
Carbon Dioxide ◽  
Response Surface Methodology ◽  
Response Surface ◽  
Oil Recovery ◽  
Seed Oil ◽  
Morinda Citrifolia ◽  
Design Experiment ◽  
Extraction Parameters ◽  
Co2 Flow ◽  
Central Composite

This study examined extraction of noni (Morinda citrifolia L) seed oil（NSO） by using supercritical carbon dioxide (SC-CO2). Response surface methodology (RSM) was used to evaluate the effects of the process parameters, namely extraction pressure, temperature and CO2 flow rate and extract time on the yield of NSO. The extraction parameters were optimized with a central composite design experiment. The result showed that the oil recovery got the highest for 20.13% dry basis under the condition of pressure 21 MPa, temperature 37°C, flow velocity 20 L/min and the extract time 104 min, the pressure expressed most significant effect on the oil yield (p <0.001)

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