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


Citation

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

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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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.

Additional Metadata

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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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