Extraction of caustic potash from spent tea for biodiesel production

Sulaiman, Sarina and Che Fisol, Ahmad Faiz and Mohamed Sharikh, Atikah (2018) Extraction of caustic potash from spent tea for biodiesel production. In: International Conference on Advances in Manufacturing and Materials Engineering 2017, ICAMME 2017, 8th-9th August 2017, Kuala Lumpur, Malaysia.

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Abstract

Biodiesel is an alternative to non-renewable fossil fuels due to its low gas emission and economical value. This study aims to extract caustic potash (KOH) from spent tea and to optimize the transesterfication process based on parameters such as amount of catalyst, reaction temperature and methanol to oil ratio. The spent tea was first dried at 60°C prior to calcination at 600°C for two hours. Caustic Potash were extracted from the calcined spent tea. The transesterification process was done based on Design of Experiments (DOE) to study the effects of amount of catalyst ranging from 0.5 wt % to 2.5 wt %, reaction temperature from 55°C to 65°C and methanol to oil ratio from 6:1 to 12:1 at a constant agitation rate of 300 rpm for three hours. The calcined spent tea produced was recorded the highest at 54.3 wt % and the extracted catalyst was 2.4 wt %. The optimized biodiesel yield recorded was 56.95% at the optimal conditions of 2.5 wt % amount of catalyst, 65°C reaction temperature and 9:1 methanol to oil ratio.

Item Type:	Conference or Workshop Item (Plenary Papers)
Additional Information:	6797/57744
Uncontrolled Keywords:	caustic potash extraction, spent tea, biodiesel
Subjects:	T Technology > TP Chemical technology > TP315 Fuel
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User:	Dr Sarina Sulaiman
Date Deposited:	17 Aug 2017 09:29
Last Modified:	18 Oct 2018 09:52
URI:	http://irep.iium.edu.my/id/eprint/57744

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