2012 ©
             Publication
Journal Publication
Title of Article Optimization of Bio-Hydrogenated Gasoline Production from Rice Bran Oil via Catalytic Hydrocracking over Pd/Al2O3 Catalyst 
Date of Acceptance 11 May 2021 
Journal
     Title of Journal Journal of the Japan Institute of Energy 
     Standard SCOPUS 
     Institute of Journal The Japan Institute of Energy 
     ISBN/ISSN 0916-8753 
     Volume 100 
     Issue
     Month August
     Year of Publication 2021 
     Page 152-161 
     Abstract This work aims to study biofuel production from rice bran oil (RBO) using a hydrocracking reaction over 0.5%Pd/Al2O3 catalyst. The Central Composite Design (CCD) was used to find optimal bio-hydrogenated gasoline (BHG) production conditions. The effects of pressure and temperature, including the interaction of the parameters under the constant liquid hourly space velocity (LHSV), were determined by the statistical methodology of surface response (RSM). The yields of liquid biofuel products and BHG, as well as BHG selectivity, were used as response values for optimizing BHG production. The results remarkably showed that pressure and temperature significantly influenced BHG production in terms of yield and selectivity. The optimal condition for BHG production was found to be at 516 °C and 4.8 MPa, with the BHG yield of 44.22%. However, the optimal BHG selectivity was found to be at 532 °C and 4.4 MPa with a selectivity of 70%. Moreover, temperature appeared to be a more dominant parameter on biofuel product yield than the pressure. This parameter had greater effects on both linear and square terms in ANOVA analysis of the biofuel product yield. Furthermore, hydrocracking was discovered to improve the heat of combustion of BHG as compared with the initial feedstock and commercial gasoline. The total acid value of BHG was also found to increase because the reaction could break the ester bond between glycerol and carboxyl groups; thus, free fatty acids were formed, causing the high value of total acid in the sample. 
     Keyword Green gasoline, Green fuel, Biofuel, Hydroprocessing, Central composite design 
Author
577040019-6 Miss WIPHADA ATTAPHAIBOON [Main Author]
Engineering Doctoral Degree

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Level of Publication นานาชาติ 
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