Making biodiesel from coconut oil by reaction metanolisis heterogeneous catalyst

2010 ◽  
Author(s):  
A Awaluddin ◽  
Padil ◽  
S Wahyuningsih
Keyword(s):  
Heterogeneous Catalyst ◽  
Coconut Oil

scholarly journals Transesterification of Coconut Oil Using Dimethyl Carbonate and TiO2/SiO2 Heterogeneous Catalyst

2013 ◽  
Vol 13 (1) ◽  
pp. 47-52 ◽  
Author(s):  
Kamisah D. Pandiangan ◽  
Wasinton Simanjuntak
Keyword(s):  
Heterogeneous Catalyst ◽  
Fatty Acid Methyl Esters ◽  
Spectroscopic Analysis ◽  
Dimethyl Carbonate ◽  
Methyl Esters ◽  
Cetane Number ◽  
Coconut Oil ◽  
Molar Ratio ◽  
Acid Methyl

In this study, transesterification of coconut oil with dimethyl carbonate (DMC) for preparing biodiesel has been studied using TiO2/SiO2 as heterogeneous catalyst, with the main purpose to investigate the effect of molar ratio of DMC to oil. The product was analyzed by GC-MS to identify the fatty acid methyl esters (FAMEs) composting the biodiesel. The significant role of the DMC to oil ratio was observed in this study, in which the oil conversion was found to increase with increasing molar ratio of DMC : Oil, with the highest percent of conversion of 88.44%. The GC-MS analysis revealed the presence of methyl esters in accordance with the composition of coconut oil commonly reported. Formation of FAMEs was verified by 1H-NMR spectroscopic analysis, which also suggested that some of the fatty acids remain unconverted into biodiesel. The biodiesel produced was found to have kinematic viscosity of 2.4 mm2/S at 40 °C, flash point of 103 °C, and cetane number of 54.

scholarly journals Production of Methyl ester from Coconut Oil using Heterogeneous K/Al2O3 under Microwave Irradiation

2020 ◽  
Vol 5 (2) ◽  
pp. 23-29
Author(s):  
Andi Suryanto ◽  
Ummu Kalsum ◽  
Lailatul Qadariya ◽  
Mahfud Mahfud
Keyword(s):  
Methyl Ester ◽  
Heterogeneous Catalyst ◽  
Microwave Power ◽  
Heterogeneous Catalysts ◽  
Catalyst Concentration ◽  
Methyl Esters ◽  
Coconut Oil ◽  
Ester Yield ◽  
Esterification Reactions ◽  
Al2o3 Catalyst

Methyl esters derived from coconut oil are very interesting to study because they contain free fatty acids with a medium carbon chain structure (C12-C14), so most methyl esters (70%) can be bio-kerosene and the rest can be biodiesel. The process of preparing methyl ester by reaction of Trans-esterification triglyceride generally using a homogeneous KOH catalyst but this process requires a long catalyst separation process through washing and drying process. The use of heterogeneous catalysts in the production of methyl esters can remove the washing and drying processes, but trans-esterification reactions with heterogeneous catalysts require severe conditions (high pressure and high temperature), whereas at low temperatures and atmospheric conditions, the methyl ester yield is relatively low. Using microwave-irradiated trans-esterification reactions with heterogeneous catalysts, it is expected to be much faster and can obtained higher yields. Therefore, in this study we prepare a heterogeneous catalyst K/Al2O3 using solution KOH that impregnated in catalyst support Al2O3, and catalyst obtained are caracterized by XRD, BET dan SEM. Our objective was to compare the yield of methyl esters obtained through the trans-esterification process of coconut oil assisted by microwave using a heterogeneous K / Al2O3 catalyst with yield obtained using a homogeneous KOH catalyst. Experimental equipment consists of a batch reactor placed in a microwave oven equipped with a condenser, agitator and temperature controller. The batch process was carried out at atmospheric pressure with variation of K/Al2O3 catalyst concentration (0.5, 1.0, 1.5, 2.0, 2.5%) and microwave power (100, 264 and 400 W). In general, the process of producing methyl esters by heterogeneous catalysts will get three layers, wherein the first layer is the product of methyl ester, the second layer is glycerol and the third layer is the catalyst. The experimental results show that the methyl ester yield increases with increasing of microwave power, catalyst concentration and reaction time. The results obtained with K /Al2O3 catalysts are generally slightly lower than those obtained using a homogeneous KOH catalyst. However, the yield of methyl esters obtained by the K / Al2O3 heterogeneous catalyst process are relatively easy to separate rather than using a homogeneous KOH catalyst.

scholarly journals BIODIESEL PRODUCTION FROM COCONUT OIL USING HETEROGENEOUS CATALYST DERIVED FROM ITS POD

2021 ◽  
Vol 12 (8) ◽  
Author(s):  
Adebayo A. O. ◽  
Oniya O. O. ◽  
Ogunsola D. A. ◽  
Ogunkunle O. ◽  
Bello A. I. ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Coconut Oil ◽  
Biodiesel Production

CaO/Natural Dolomite as a Heterogeneous Catalyst for Biodiesel Production

2020 ◽  
Vol 991 ◽  
pp. 117-122
Author(s):  
Bachrun Sutrisno ◽  
Atik Dian Nafiah ◽  
Indah Suci Fauziah ◽  
Winarto Kurniawan ◽  
Hirofumi Hinode ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Batch Reactor ◽  
Average Pore Size ◽  
Coconut Oil ◽  
Biodiesel Production ◽  
Optimum Process ◽  
Process Conditions ◽  
High Catalytic Activity ◽  
X Ray ◽  
Biodiesel Synthesis

In the present study, the CaO/Natural Dolomite as a heterogeneous catalyst was applied to synthesize biodiesel from coconut oil. The physico-characteristics of CaO/Natural Dolomite catalyst were determined using X-ray diffraction (XRD), X-Ray Fluorescence, and porosity analysis (specific surface area, average pore size diameter and total pore volume). The performance of CaO/Natural Dolomite catalyst was examined in a batch reactor for transesterification reaction of coconut oil with methanol. From the experiments, the optimum process conditions were achieved at a 60°C of reaction temperature, a 5 wt.% of catalyst amount, and 6 : 1 of methanol to coconut oil mass ratio. The CaO/Natural Dolomite catalyst exhibits high catalytic activity and reliable to be applied in biodiesel synthesis as a heterogeneous base catalyst.

scholarly journals The Production Of Biodiesel From A Traditional Coconut Oil Using NaOH/γ-Al2O3 Heterogeneous Catalyst

2018 ◽  
Vol 175 ◽  
pp. 012025 ◽  
Author(s):  
Rismawati Rasyid ◽  
Zakir Sabara ◽  
H Ainun Pratiwi ◽  
Rasdin Juradin ◽  
Rahmania Malik
Keyword(s):  
Heterogeneous Catalyst ◽  
Coconut Oil

scholarly journals EFFECT OF TEMPERATURE AND SPEED OF STIRRER TO BIODIESEL CONVERSION FROM COCONUT OIL WITH THE USE OF PALM EMPTY FRUIT BUNCHES AS A HETEROGENEOUS CATALYST

2010 ◽  
Vol 9 (1) ◽  
pp. 54-61
Author(s):  
Luthfi Pratama ◽  
Yoeswono Yoeswono ◽  
Triyono Triyono ◽  
Iqmal Tahir
Keyword(s):  
Heterogeneous Catalyst ◽  
Room Temperature ◽  
Methyl Esters ◽  
Coconut Oil ◽  
Potassium Content ◽  
Effect Of Temperature ◽  
Base Catalyst ◽  
Empty Fruit Bunches ◽  
Biodiesel Synthesis ◽  
Catalyst Temperature

Biodiesel synthesis by transesterification reaction of coconut oil with methanol by using ash of palm empty fruit bunches (EFB) as base catalyst has been conducted. Sample of ash was prepared through heating, screening, reashing, and finally determining of potassium content. Sample of coconut oil was analyzed by GC-MS. A certain amount of ash was extracted in methanol with mixing for about 1 h at room temperature and a result was used for reaction of transesterification. The studied variables were effect of temperature and speed of stirrer. The composition of the methyl esters (biodiesel) was analyzed using GC-MS and 1H NMR, whereas characters of biodiesel were analyzed using ASTM methods. The results showed that potassium content in ash of EFB could be extracted by methanol and it could be used as base catalyst in the biodiesel synthesis. The value increasing of both variables enhanced the biodiesel conversion. The properties of biodiesel were relatively conformed to specification of biodiesel.   Keywords: biodiesel, coconut oil, base catalyst, temperature, stirring

PENGARUH VIRGIN COCONUT OIL (VCO) TERHADAP KARAKTERISTIK DAN UMUR SIMPAN ROTI MANIS

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Aulia Alfi
Keyword(s):  
Moisture Content ◽  
Shelf Life ◽  
Coconut Oil ◽  
Temperature Treatment ◽  
Ash Content ◽  
Virgin Coconut Oil ◽  
Food Ingredients ◽  
Life Analysis ◽  
Antibacterial And Antifungal ◽  
Physical And Chemical

Virgin Coconut Oil (VCO) adalah bahan alami yang memiliki sifat antimikroba (antivirus, antibakteri, dan antijamur). Sehingga VCO dapat memberikan efek pengawet pada bahan makanan, salah satunya adalah roti manis. Penelitian ini dilakukan untuk mengevaluasi pengaruh VCO terhadap karakteristik (fisik dan kimia) dan umur simpan roti manis. Roti manis dianalisis secara fisik (tekstur dan porositas) dan kimia (kadar air, kadar abu, kadar lemak, kadar protein, dan kandungan karbohidrat), dan analisis umur simpan dengan FFA, uji organoleptik dan jamur setiap dua hari selama delapan hari penyimpanan di suhu ruang. Variasi perlakuan roti manis adalah dari rasio konsentrasi VCO: margarin: mentega, K (0%: 8%: 8%); A (4%: 6%: 6%); B (8%: 4%: 4%), C (12%: 2%: 2%); D (16%: 0%: 0%). Hasil penelitian menunjukkan bahwa VCO tidak memiliki pengaruh yang signifikan terhadap karakteristik fisik dan karakteristik kimia roti manis. Namun, VCO berpengaruh signifikan terhadap kadar air roti manis yang dihasilkan, roti manis K memiliki kadar air tertinggi (22,36%) dan berbeda dengan sampel roti manis lainnya. VCO secara efektif menghambat pertumbuhan jamur di roti manis pada konsentrasi 8%, 12%, dan 16%. Roti manis K dan A memiliki masa simpan 4 hari, sedangkan roti manis B, C, dan D memiliki masa simpan 6 hari.Kata kunci: VCO, roti manis, karakteristik, umur simpanABSTRACTVirgin Coconut Oil (VCO) is a natural ingredient that has antimicrobial (antiviral, antibacterial, and antifungal) properties. So that VCO can provide a preservative effect on food ingredients, one of which is sweet bread. This research was conducted to evaluate the effect of VCO on characteristics (physical and chemical) and shelf life of sweet bread. Sweet bread was analyzed physically (texture and porosity) and chemistry (moisture content, ash content, fat content, protein content, and carbohydrate content), and shelf life analysis with FFA, organoleptic and mold tests every two days for eight days of storage at ambient temperature. Treatment variations of sweet breads is from the ratio of the concentration of VCO: margarine: butter, K (0%: 8%: 8%); A (4%: 6%: 6%); B (8%: 4%: 4%), C (12%: 2%: 2%); D (16%: 0%: 0%). The results showed that VCO did not have a significant effect on the physical characteristics and chemical characteristics of sweet bread. However, the VCO has a significant effect on the water content of the sweet bread produced, sweet bread K has the highest moisture content (22,36%) and it is different from other sweet bread samples. VCO effectively inhibits the growth of sweet bread mold at concentrations of 8%, 12%, and 16%. K and A sweet bread has a shelf life of 4 days, while sweet breads B, C, and D have a shelf life of 6 days.Keywords: VCO, sweet bread, characteristics, shelf life

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