Pretreatment of high free fatty acid Jatropha curcas L. oil as preparative precursor for base transesterification

2012 ◽  
Author(s):  
Norazah Abdul Rahman ◽  
Muhamad Nor Syafik Yahya
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Jatropha Curcas ◽  
High Free Fatty Acid ◽  
Jatropha Curcas L

scholarly journals Tingkat Produksi Biji, Kualitas Crude Jatropha Oil dan Biodiesel Jatropha curcas sebagai Sumber Biofuels

2020 ◽  
Vol 20 (3) ◽  
Author(s):  
Maftuchah Maftuchah ◽  
Helvi Ardana Reswari ◽  
Ahmad Fauzan ◽  
Dini Kurniawati ◽  
Iis Siti Aisyah ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Jatropha Curcas ◽  
Jatropha Oil ◽  
Jatropha Curcas L

Jarak pagar (Jatropha curcas L.) merupakan salah satu komoditi perkebunan tropis yang memiliki potensi sebagai  pengganti bahan bakar minyak. Biji jarak pagar mengandung kadar minyak cukup tinggi dan sangat potensial sebagai bahan baku biodiesel.  Kegiatan penelitian ini bertujuan mendapatkan informasi tentang tingkat produksi biji, kualitas crude jatropha oil dan biodiesel  J.curcas Linn. sebagai sumber biofuels. Penelitian dilaksanakan di Desa Kedung Pengaron Pasuruan dan Laboratorium Teknologi Minyak Nabati Universitas Muhammadiayh Malang. Penelitian menggunakan Rancangan Acak Kelompok empat ulangan. Hasil pengamatan menunjukkan bahwa genotip J.curcas berpengaruh secara signifikan terhadap rerata jumlah buah per tanaman, jumlah biji per tanaman, berat kering biji per tanaman dan kadar minyak biji. Jumlah buah per tanaman dan berat kering biji per tanaman yang dihasilkan genotip JCUMM (JCUMM-5, JCUMM-6, JCUMM-7, JCUMM-18) lebih tinggi daripada kontrol IP3A dan IP3P. Jumlah biji per tanaman berkisar 91,3 (IP3P) hingga 236,6 (JCUMM-5). Berat  kering 100 biji dari berbagai genotip J.curcas berkisar antara 64,1 g (JCUMM-6) hingga 69,7 g (JCUMM-5) sedangkan kadar minyak biji berkisar antara 39,5% (JCUMM-6) hingga 57,7% (JCUMM-7). Hasil uji esterifikasi menunjukkan hasil Free Fatty Acid dari crude jatropha oil berkisar antara 0,2% (JCUMM-18) hingga 1,97% (IP3A). Seluruh genotip memiliki kadar FFA kurang dari 2% sehingga masih layak dipergunakan sebagai bahan biodiesel. Nilai bilangan asam yang diperoleh antara 2,9 mg-KOH/g (JCUMM-6) hingga 6,40 mg-KOH/g (IP3A). Sedangkan bilangan Iodine diperoleh hasil antara 94,5 g I2/100g (JCUMM-5) hingga 102,4 g I2/100g (JCUMM-6)

Lewis acid-catalyzed transesterification and esterification of high free fatty acid oil in subcritical methanol

2007 ◽  
Vol 24 (2) ◽  
pp. 311-313 ◽  
Author(s):  
Xianglin Hou ◽  
Yongqin Qi ◽  
Xingang Qiao ◽  
Guofu Wang ◽  
Zhangfeng Qin ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Lewis Acid ◽  
High Free Fatty Acid ◽  
Acid Oil ◽  
Acid Catalyzed

Biodiesel Production from the High Free Fatty Acid “Hevea brasiliensis” and Fuel Properties Characterization

2014 ◽  
Vol 625 ◽  
pp. 897-900 ◽  
Author(s):  
Junaid Ahmad ◽  
Suzana Yusup ◽  
Awais Bokhari ◽  
Ruzaimah Nik Mohammad Kamil
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Seed Oil ◽  
Standard Procedure ◽  
Fuel Properties ◽  
Biodiesel Production ◽  
Modern World ◽  
High Free Fatty Acid ◽  
Rubber Seed Oil ◽  
Rubber Seed

Energy crises, depletion of fossil fuel reservoirs, environmental pollution, global warming, green house effect and starvation are becoming very serious problems in the modern world. Biodiesel is a liquid fuel which can be the best alternative for the fossil fuels. In this study, non-edible rubber seed oil (RSO) with high free fatty acid (FFA) content (45%) was used for the production of biodiesel. The process comprises of two steps, in the first step acid esterification was used to reduce the FFA and in the second step base transesterification was employed to convert the treated oil into rubber seed oil methyl esters (RSOMEs). The conversion yield of biodiesel was analyzed using gas chromatography. The fuel properties were tested using the standard procedure of ASTM D6751 and EN14214. All the properties were within the ranges of the biodiesel standards. The result shows that rubber seed oil is a potential non-edible source for biodiesel production.

Optimisation and Kinetic Studies of Acid Esterification of High Free Fatty Acid Rubber Seed Oil

2015 ◽  
Vol 41 (7) ◽  
pp. 2515-2526 ◽  
Author(s):  
Lai Fatt Chuah ◽  
Awais Bokhari ◽  
Suzana Yusup ◽  
Jiří Jaromír Klemeš ◽  
Bawadi Abdullah ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Free Fatty Acid ◽  
Seed Oil ◽  
Kinetic Studies ◽  
High Free Fatty Acid ◽  
Rubber Seed Oil ◽  
Rubber Seed ◽  
Acid Esterification
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