The availability of abundant rubber seeds and not being used by the wider community is something that must be found a solution. Rubber seeds can be processed into biodiesel oil as alternative energy. Currently, renewable alternative energy is urgently needed as a substitute for non-renewable energy such as oil and coal. The purpose of this study was to determine the effect of variations in the mixture of methanol and caustic soda as a catalyst in rubber seed oil (Hevea brasiliensis). The tests carried out were droplet combustion to determine flashpoint, ignition delay time, burning rate, and visualization of fire at atmospheric pressure. Variations of the mixture (catalyst: methanol) used were: 0 gram : 0%; 0.25 grams : 10%; 0.5 grams: 20% and 0.75 grams: 30%. Variations of this mixture were prepared in 5 ml of rubber seed oil per sample. The addition of mixed variations affects droplet combustion where the flashpoint and ignition delay time increase continuously. The burning rate value decreased due to the length of time the burning occurred. The burning rate value also affects the height of the burning fire, this is indicated by the dominant yellow flame color. The increase in the percentage of the catalyst mixture with methanol causes a higher flame. Burning time caused by mixing caustic soda with rubber seed oil resulted in an increased in viscosity.

1.
S. O.
Omorogbe
,
E. U.
Ikhuoria
,
A. I.
Aigbodion
,
E. O.
Obazee
, and
V. M.
Momodu
, “
Production of Rubber Seed Oil Based Biodiesel Using Different Catalysts
,”
Curr. Res. Chem.
, vol.
5
, no.
1
, pp.
11
18
,
2013
.
2.
E. S.
Ikechukwu
and
O. G.
Onyekachi
, “
Validation of Optimal Conditions of the Functional Properties of Rubber Seed Oil-Derived Biodiesel
,”
Int. J. Renew. Energy Res.
, vol.
11
, no.
1
, pp.
332
343
,
2021
.
3.
Misdawati
,
M.
Nasution
, and
Syarifuddin
, “
Synthesis and characteristic bioadditive of rubber seed oil as low pour point biodiesel CPO
,”
3rd Syiah Kuala Univ. Annu. Int. Conf. 2013
, pp.
22
27
,
2013
.
4.
M. M.
Zamberi
et al, “
Conversion of Crude Hevea brasiliensis Oil to Biodiesel Utilizing Perna viridis Waste Shells as Solid Catalysts
,”
Adv. Eng. Res.
, vol.
207
, no.
Issat
, pp.
498
504
,
2021
.
5.
Salni
,
P. L.
Hariani
, and
H.
Marisa
, “
Influence of the rubber seed type and altitude on characteristic of seed, oil and biodiesel
,”
Int. J. Renew. Energy Dev.
, vol.
6
, no.
2
, pp.
157
163
,
2017
.
6.
Widayat
,
A. D. K.
Wibowo
, and
Hadiyanto
, “
Study on production process of biodiesel from rubber seed (hevea brasiliensis) by in situ (trans)esterification method with acid catalyst
,”
Energy Procedia
, vol.
32
, no.
December
, pp.
64
73
,
2013
.
7.
A.
Demirbas
, “
Progress and recent trends in biodiesel fuels
,”
Energy Convers. Manag.
, vol.
50
, no.
1
, pp.
14
34
,
2009
.
8.
S.
Niju
,
F. R.
Raj
,
C.
Anushya
, and
M.
Balajii
, “
Self-dual Leonard pairs Optimization of acid catalyzed esterification and Let F denote a transesterification mixed metal oxide catalyzed for biodiesel production from Moringa Oleifera Oil
,”
Green Process Synth
, vol.
8
, pp.
756
775
,
2019
.
9.
M.
Takase
et al, “
An expatiate review of neem, jatropha, rubber and karanja as multipurpose non-edible biodiesel resources and comparison of heir fuel, engine and emission properties
,”
Renew. Sustain. Energy Rev.
, vol.
43
, no.
June 2018
, pp.
495
520
,
2015
.
10.
S. S.
Kumar
et al, “
Combustion, performance, and emission behaviors of biodiesel fueled diesel engine with the impact of alumina nanoparticle as an additive
,”
Sustain.
, vol.
13
, no.
21
,
2021
.
11.
E.
Termal
, “
The Measurement of Thermal Efficiency Using Plants Stove in Combustion Products of Palm and Canola Re-Used Cooking Oil, and Waste Cooking Oil from Lalapan Seller
,” pp.
1
4
.
This content is only available via PDF.
You do not currently have access to this content.