Optimization of biodiesel production process for mixed Jatropha curcas-Ceiba pentandra biodiesel using response surface methodology

S. Dharma, H. H. Masjuki, Hwai Chyuan Ong, A. H. Sebayang, A. S. Silitonga, F. Kusumo, T.m. Indra Mahlia

Research output: Contribution to journalArticle

105 Citations (Scopus)

Abstract

Exploring and improvement of biodiesel production from non-edible vegetable oil is one of the effective ways to solve limited amount of traditional raw materials and their high prices. The main objective of this study is to optimize the biodiesel production process parameters (methanol-to-oil ratio, agitation speed and concentration of the potassium hydroxide catalyst) of a biodiesel derived from non-edible feedstocks, namely Jatropha curcas and Ceiba pentandra, using response surface methodology based on Box-Behnken experimental design. Based on the results, the optimum operating parameters for transesterification of the J50C50 oil mixture at 60 °C over a period of 2 h are as follows: methanol-to-oil ratio: 30%, agitation speed: 1300 rpm and catalyst concentration: 0.5 wt.%. These optimum operating parameters gives the highest yield for the J50C50 biodiesel with a value of 93.33%. The results show that there is a significant improvement in the physicochemical properties of the J50C50 biodiesel after optimization, whereby the kinematic viscosity at 40 °C, density at 15 °C, calorific value, acid value and oxidation stability is 3.950 mm 2 /s, 831.2 kg/m 3 , 40.929 MJ/kg, 0.025 mg KOH/g and 10.01 h, respectively. The physicochemical properties of the optimized J50C50 biodiesel fulfill the requirements given in the ASTM D6751 and EN14214 standards.

Original languageEnglish
Pages (from-to)178-190
Number of pages13
JournalEnergy Conversion and Management
Volume115
DOIs
Publication statusPublished - 01 May 2016

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Biodiesel
Methanol
Potassium hydroxide
Calorific value
Catalysts
Vegetable oils
Transesterification
Design of experiments
Feedstocks
Raw materials
Viscosity
Oxidation
Acids
Oils

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Nuclear Energy and Engineering
  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

Dharma, S. ; Masjuki, H. H. ; Ong, Hwai Chyuan ; Sebayang, A. H. ; Silitonga, A. S. ; Kusumo, F. ; Mahlia, T.m. Indra. / Optimization of biodiesel production process for mixed Jatropha curcas-Ceiba pentandra biodiesel using response surface methodology. In: Energy Conversion and Management. 2016 ; Vol. 115. pp. 178-190.
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Optimization of biodiesel production process for mixed Jatropha curcas-Ceiba pentandra biodiesel using response surface methodology. / Dharma, S.; Masjuki, H. H.; Ong, Hwai Chyuan; Sebayang, A. H.; Silitonga, A. S.; Kusumo, F.; Mahlia, T.m. Indra.

In: Energy Conversion and Management, Vol. 115, 01.05.2016, p. 178-190.

Research output: Contribution to journalArticle

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T1 - Optimization of biodiesel production process for mixed Jatropha curcas-Ceiba pentandra biodiesel using response surface methodology

AU - Dharma, S.

AU - Masjuki, H. H.

AU - Ong, Hwai Chyuan

AU - Sebayang, A. H.

AU - Silitonga, A. S.

AU - Kusumo, F.

AU - Mahlia, T.m. Indra

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AB - Exploring and improvement of biodiesel production from non-edible vegetable oil is one of the effective ways to solve limited amount of traditional raw materials and their high prices. The main objective of this study is to optimize the biodiesel production process parameters (methanol-to-oil ratio, agitation speed and concentration of the potassium hydroxide catalyst) of a biodiesel derived from non-edible feedstocks, namely Jatropha curcas and Ceiba pentandra, using response surface methodology based on Box-Behnken experimental design. Based on the results, the optimum operating parameters for transesterification of the J50C50 oil mixture at 60 °C over a period of 2 h are as follows: methanol-to-oil ratio: 30%, agitation speed: 1300 rpm and catalyst concentration: 0.5 wt.%. These optimum operating parameters gives the highest yield for the J50C50 biodiesel with a value of 93.33%. The results show that there is a significant improvement in the physicochemical properties of the J50C50 biodiesel after optimization, whereby the kinematic viscosity at 40 °C, density at 15 °C, calorific value, acid value and oxidation stability is 3.950 mm 2 /s, 831.2 kg/m 3 , 40.929 MJ/kg, 0.025 mg KOH/g and 10.01 h, respectively. The physicochemical properties of the optimized J50C50 biodiesel fulfill the requirements given in the ASTM D6751 and EN14214 standards.

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