An optimisation study for catalytic hydrolysis of oil palm shell using response surface methodology

Jayakumar Natesan Subramanian, . and Yong E. K., . and Poobalan Ganesan, . and Nabisab Mujawar Mubarak., . and Nizamuddin Sabzoi, . and Shaukat Ali Mazari, . and Jaya Narayan Sahu, . An optimisation study for catalytic hydrolysis of oil palm shell using response surface methodology. pp. 339-351. ISSN 1511-2780

Oil palm shell has great potential for conversion to biofuels because of its abundance and favourable composition. Catalytic hydrolysis of oil palm shell was performed using sodium hydroxide as a catalyst. The main objective of the study was to optimise the process parameters for yield percentage of bio-oil from catalytic hydrolysis of palm shell by means of response surface methodology with central composite design. The parameters investigated were reaction temperature (140oC-230oC) reaction time (10-30 min) and NaOH concentration (04 m-1.5 m). The main product (bio-oil) was characterised using Fourier transform infra-red spectroscopy and the bomb calorimeter to find the functional groups and higher heating value of bio-oil. Among all the three parameters the NaOH concentration was found to be the most influencing factor for liquid yield percentage followed by reaction temperature and time respectively. The R-squared value of the model was 0.9657 indicating an excellent match for values of liquid production in predicted and experimental results. The optimum conditions found were: temperature at 230oC time at 10 min and NaOH concentration at 1.5 M yielded 74.6 wt. of product. The heating values determined for acetone and water-soluble products at optimum conditions were 22.4 MJ kg-1 and 14.3 MJ kg-1.

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Abstract

Oil palm shell has great potential for conversion to biofuels because of its abundance and favourable composition. Catalytic hydrolysis of oil palm shell was performed using sodium hydroxide as a catalyst. The main objective of the study was to optimise the process parameters for yield percentage of bio-oil from catalytic hydrolysis of palm shell by means of response surface methodology with central composite design. The parameters investigated were reaction temperature (140oC-230oC) reaction time (10-30 min) and NaOH concentration (04 m-1.5 m). The main product (bio-oil) was characterised using Fourier transform infra-red spectroscopy and the bomb calorimeter to find the functional groups and higher heating value of bio-oil. Among all the three parameters the NaOH concentration was found to be the most influencing factor for liquid yield percentage followed by reaction temperature and time respectively. The R-squared value of the model was 0.9657 indicating an excellent match for values of liquid production in predicted and experimental results. The optimum conditions found were: temperature at 230oC time at 10 min and NaOH concentration at 1.5 M yielded 74.6 wt. of product. The heating values determined for acetone and water-soluble products at optimum conditions were 22.4 MJ kg-1 and 14.3 MJ kg-1.

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Item Type:	Article
AGROVOC Term:	Oil palm
AGROVOC Term:	Shell
AGROVOC Term:	Biofuels
AGROVOC Term:	Hydrolysis
AGROVOC Term:	Catalytic activity
AGROVOC Term:	Drying
AGROVOC Term:	Heating
AGROVOC Term:	Sodium hydroxide
AGROVOC Term:	Models
AGROVOC Term:	Experimental design
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/24331

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