Optimisation of reaction parameters for the production of levulinic acid from Tanzanian sugarcane bagasse

Ogedjo, Marcelina Marienga

dc.creator	Ogedjo, Marcelina Marienga
dc.date	2018-10-15T09:26:51Z
dc.date	2018-10-15T09:26:51Z
dc.date	2017
dc.date.accessioned	2022-10-20T13:14:35Z
dc.date.available	2022-10-20T13:14:35Z
dc.identifier	Ogedjo, M. M. (2017). Optimisation of reaction parameters for the production of levulinic acid from Tanzanian sugarcane bagasse. Dodoma: The University of Dodoma
dc.identifier	http://hdl.handle.net/20.500.12661/479
dc.identifier.uri	http://hdl.handle.net/20.500.12661/479
dc.description	Dissertation (MSc. Chemistry)
dc.description	This dissertation presents the optimization of the reaction parameters for the production of levulinic acid from Tanzanian sugarcane bagasse under pressurized conditions using a non-stirred pressure reactor developed in our laboratory. Sugarcane bagasse produced as a waste from the sugar industries was used in this research a raw material for the production of levulinic acid (LA). It was chosen because it is a waste from the sugar industries, non-food competitive and non-land competitive. The sugarcane bagasse was hydrolyzed using sulphuric acid under different concentration of the hydrolyzing acid, reaction temperature and reaction time. The sugarcane bagasse was hydrolyzed using sulphuric acid (0.25- 1.5M) at a temperature ranging from 180- 200 with reaction time ranging from 10-20 min. A non-stirred stainless steel pressurized reactor was designed and used for the hydrolysis experiments. This dissertation presents the optimization of the reaction parameters for the production of levulinic acid from Tanzanian sugarcane bagasse under pressurized conditions using non-stirred pressure reactor developed in our laboratory. Sugarcane bagasse produced as a waste from the sugar industries was used in this research a raw material for the production of levulinic acid (LA). It was chosen because it is a waste from the sugar industries, non-food competitive and non-land competitive. The sugarcane bagasse was hydrolyzed using sulphuric acid under different concentration of the hydrolyzing acid, reaction temperature and reaction time. The sugarcane bagasse was hydrolyzed using sulphuric acid (0.25- 1.5M) at a temperature ranging from 180- 200 with reaction time ranging from 10-20 min. A non-stirred stainless steel pressurized reactor was designed and used for the hydrolysis experiments. The absorbance of the levulinic acid produced at different reaction conditions was measured using UV-vis spectrophotometer and the concentration calculated using the calibration graph. The results show that the yield of levulinic acid produced depends on the concentration of the hydrolyzing acid, reaction temperature and the reaction time. A maximum yield of 5.47 mg/ml of levulinic acid was obtained when the sugarcane bagasse was hydrolyzed using 1M sulphuric acid at 190 0C for 15 min.
dc.language	en
dc.publisher	The University of Dodoma
dc.subject	Levulinic acid
dc.subject	Sugarcane
dc.subject	Bagasse
dc.subject	Tanzania
dc.subject	Acid production
dc.subject	Reaction parameters
dc.subject	Laboratory
dc.subject	Non-stirred pressure reactor
dc.subject	Sugarcane bagasse
dc.subject	Non-stirred pressure
dc.title	Optimisation of reaction parameters for the production of levulinic acid from Tanzanian sugarcane bagasse
dc.type	Dissertation