Effect of acid concentration on sugar extraction from oil palm trunk via acid hydrolysis

Rafidah Jalil Forest Research Institute of Malaysia, . and Mahanim S. M. A., . and Wan Asma I., . and Puad E., . and Shaharuddin H., . (2009) Effect of acid concentration on sugar extraction from oil palm trunk via acid hydrolysis. [Proceedings Paper]

Biomass is a renewable carbon-neutral resource and fuels derived from biomass usually burn more cleanly than fossil fuels. Conversion of cellulose and hemicelluloses from biomass to sugars provides a feedstock for the production of bioethanol and will substantially reduce the amount of wastes. The main goal of this research was to investigate the sugar recovery rates from oil palm trunk OPT to develop an optimal and economically feasible system for the production of ethanol as a promising fuel and a base material for other chemical products. OPT is one of the potential biomass that can be converted into bioethanol since it has a high content of carbohydrates. OPT contains high moisture content between 60 to 300 depending on its height and age. The carbohydrates in OPT are approximately 46 of the whole OPT. The OPT was initially treated with concentrated sulfuric acid to enhance its accessibility to acid. After that the OPT was hydrolysed at 100C and constant heating times for various percentages of sulfuric acid. The solution was then neutralized with sodium hydroxide. Finally the total sugars in the OPT sample were quantified using refractometer and further analysed for sugar content using high performance liquid chromatography HPLC. It was found that with the use of 40 by volume of sulfuric acid the highest sugar yields could be reached within two hours of heating time.

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Abstract

Biomass is a renewable carbon-neutral resource and fuels derived from biomass usually burn more cleanly than fossil fuels. Conversion of cellulose and hemicelluloses from biomass to sugars provides a feedstock for the production of bioethanol and will substantially reduce the amount of wastes. The main goal of this research was to investigate the sugar recovery rates from oil palm trunk OPT to develop an optimal and economically feasible system for the production of ethanol as a promising fuel and a base material for other chemical products. OPT is one of the potential biomass that can be converted into bioethanol since it has a high content of carbohydrates. OPT contains high moisture content between 60 to 300 depending on its height and age. The carbohydrates in OPT are approximately 46 of the whole OPT. The OPT was initially treated with concentrated sulfuric acid to enhance its accessibility to acid. After that the OPT was hydrolysed at 100C and constant heating times for various percentages of sulfuric acid. The solution was then neutralized with sodium hydroxide. Finally the total sugars in the OPT sample were quantified using refractometer and further analysed for sugar content using high performance liquid chromatography HPLC. It was found that with the use of 40 by volume of sulfuric acid the highest sugar yields could be reached within two hours of heating time.

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Item Type:	Proceedings Paper
Additional Information:	6 ill.
AGROVOC Term:	Biomass
AGROVOC Term:	Tree trunks
AGROVOC Term:	Oil palm
AGROVOC Term:	Elaeis guineensis
AGROVOC Term:	Renewable energy
AGROVOC Term:	Hydrolysis
AGROVOC Term:	Peninsular Malaysia
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:14
URI:	http://webagris.upm.edu.my/id/eprint/11444

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