Bio-diesel Production from Kapok Seed Oil

Murni, Sri Wahyu and Widayati, Widayati and Maretta, Sonya and Widianjati, Anggi (2009) Bio-diesel Production from Kapok Seed Oil. In: Prosidng Seminar Nasional Teknik Kimia "Kejuangan" 2009: Pengembangan Teknologi Kimia Untuk Pengolahan Sumber Daya Alam Indonesia, 28 Januari 209, Jurusan Teknik Kimia Fakultas Teknologi Industri UPNVK.

Text 1 sntkk 2009 biodiesel lengkap.pdf Download (3MB)

Abstract

Indonesia’s rapid growth of people and industries causes the rising demand of fuel oil.
Consequently, the lack of fuel oil availability in the future will become a very serious problem and facing
the challenges to find out some alternative resources for producing fuel oil will be a must. Conversion
fatty acid to fatty acid methyl ester (FAME) can be used to substitute the diesel oil (bio-diesel). Fatty acid
as raw material for production bio-diesel is mainly selected from non-edible oils such as castor oil,
nyamplung oil, and kapok seed oil.This research was aimed to find out the optimum conditions for
esterification process of kapok seed oil as substrate for producing bio-diesel, including reaction time and
the amount of catalyst added, and to study its purification processes. The low content of free fatty acid
(FFA) in initial oil (< 5%) caused the bio-diesel production in this research was carried out only by a
transesterification process.Bio-diesel was produced with oil-to-methanol molar ratio of 1:6. Kapok seed
oil and solution of KOH in methanol were mixed together at 60oC. This reaction was conducted at
stirring speed of 800 rpm in a three-neck flask equipped with a condenser. After certain time periods of
reaction, bio-diesel produced was sampled, purified, and analyzed. Optimum conditions obtained from
these experiments at oil-to-methanol molar ratio of 1:6 and temperature of 60oC were the reaction time of
30 minutes and the amount of catalyst of 1.25% weight of KOH/volume of oil. At this condition, oil
conversion of 86.20% was obtained. From the kinetics viewpoint, this reaction was pseudo-first order
with respect to oil concentration and with the specific rate (k) of 0.0283 min-1
. The bio-diesel product met
the SNI (Standar Nasional Indonesia) specification, except the carbon content (that is still high enough,
i.e. 0.21%) and the free glycerol content (0.05%).
Keywords: Bio-diesel,transesterification, kapok seed oil

Item Type:	Conference or Workshop Item (Paper)
Uncontrolled Keywords:	Bio-diesel,transesterification, kapok seed oil
Subjects:	T Technology > TP Chemical technology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User:	Dra., M.T SRI WAHYU MURNI
Date Deposited:	18 Oct 2022 08:06
Last Modified:	29 Dec 2022 04:08
URI:	http://eprints.upnyk.ac.id/id/eprint/31376

Actions (login required)

View Item