Extraction of caustic potash from spent tea for biodiesel Production

International Conference on Advances in Manufacturing and Materials Engineering 2017

机械制造;材料科学

Sulaiman, Sarina^1 ; Che Fisol, Ahmad Faiz^1 ; Sharikh, Atikah Mohamed^1 ; Jimat, Dzun Noraini^1 ; Jamal, Parveen^1

Department of Biotechnology Engineering, International Islamic University Malaysia (IIUM), Jalan Gombak, Kuala Lumpur

53100, Malaysia^1

关键词: Agitation rates;    Biodiesel production;    Economical value;    Non-renewable;    Optimal conditions;    Reaction temperature;    Transesterfication;    Transesterification process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/290/1/012062/pdf
DOI  :  10.1088/1757-899X/290/1/012062

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

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.