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All Journal Jurnal Teknik Elektro Journal of Engineering and Management in Industrial System Islam Futura Jurnal Agroekoteknologi JURNAL SERAMBI ILMU International Journal of Supply Chain Management Simtek : Jurnal Sistem Informasi dan Teknik Komputer Ainet : Jurnal Informatika Joined Journal (Journal of Informatics Education Jurnal Ilmu Ekonomi dan Sosial (JIES) Jurnal Natural Aceh International Journal of Science and Technology Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) Jurnal Intelek Insan Cendikia Bilangan: Jurnal Ilmiah Matematika, Kebumian dan Angkasa Kolaborasi: Jurnal Hasil Kegiatan Kolaborasi Pengabdian Masyarakat Algoritma: Jurnal Matematika, Ilmu Pengetahuan Alam, Kebumian dan Angkasa
Saiful Saiful
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Journal : Jurnal Natural

 1 
Free Fatty Acids Purification in Biodiesel with Utilizing Rice Husk Silica Muliadi Ramli; Saiful Saiful; Rahmatun Misriana
Jurnal Natural Volume 13, Number 1, March 2013
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (74.742 KB)

Abstract

Silica particles had been successfully separated and extracted from rice husk by using solution of sodium hydroxides (NaOH) as solvent and were characterized with SEM-EDX. The data SEM-EDX showed that the extracted component of the rice husk contained 79,55% (w/w) of silica as the primary component. In order to understand the adsorption capacity of silica in removing free fatty acids (FFA) which were recognized as the contaminants in biodiesel., the profile of time dependence and silica amount in the adsorption process had been investigated in this study. The results indicated that the adsorption process showed optimum condition at 30 minutes with the free fatty acids (about 90,64%) of adsorption). Moreover, the adsorption capacity of silica to those impurities contaminated in biodiesel was proportional to the amount of adsorbent used in the experiment. Finally, biodiesel with less FFA was produced, and the FFA residues remained in the biodiesel were 0,58 mg/g.
MEMBRAN POLIURETAN DARI MINYAK BIJI KARET (RUBBER SEED OIL) DENGAN HEKSAMETILEN-1,6-DIISOSIANAT: SINTESIS Salfauqi Nurman; Marlina Marlina; Saiful Saiful
Jurnal Natural Volume 16, Number 1, March 2016
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (158.896 KB) | DOI: 10.24815/jn.v16i1.4705

Abstract

Polyurethane membrane made from Rubber Seed Oil has been produced within this research. Rubber seed oil has the hydroxyl number of  40,33 mg/g  and the iodine number of  154,05 g/g which can be used as resource clusters; -OH, in order to make polyurethane. Rubber seed oil can react with hexamethylene-1.6-diisocyanate (HDMI) as another resource cluster, which is -NCO. The production of polyurethane membrane is done by variating the composition of rubber seed oil and HDMI, with the variations of 5:1; 5:3; 5:4; 5:5 dan 5:7 (v/w) and the polymrization temperature of 90-100°C and the curring temperature of  165-170°C. The optimal polyurethane membrane is produced on the composition of 5:4 v/w  which is homogenous, dry, quite elastic and is yellowish brown in colour. The IR results showed that there were urethan bonds formed (N-H on  ν = 3300-3400 cm-1) and the TGA results from polyurethane membrane showed that there were two decompositions on 394,5oC dan 458,6oC.
MEMBRAN POLIURETAN DARI MINYAK BIJI KARET (RUBBER SEED OIL) DENGAN HEKSAMETILEN-1,6-DIISOSIANAT: SINTESIS Salfauqi Nurman; Marlina Marlina; Saiful Saiful
Jurnal Natural Volume 16, Number 1, March 2016
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v16i1.4705

Abstract

Polyurethane membrane made from Rubber Seed Oil has been produced within this research. Rubber seed oil has the hydroxyl number of  40,33 mg/g  and the iodine number of  154,05 g/g which can be used as resource clusters; -OH, in order to make polyurethane. Rubber seed oil can react with hexamethylene-1.6-diisocyanate (HDMI) as another resource cluster, which is -NCO. The production of polyurethane membrane is done by variating the composition of rubber seed oil and HDMI, with the variations of 5:1; 5:3; 5:4; 5:5 dan 5:7 (v/w) and the polymrization temperature of 90-100°C and the curring temperature of  165-170°C. The optimal polyurethane membrane is produced on the composition of 5:4 v/w  which is homogenous, dry, quite elastic and is yellowish brown in colour. The IR results showed that there were urethan bonds formed (N-H on  ν = 3300-3400 cm-1) and the TGA results from polyurethane membrane showed that there were two decompositions on 394,5oC dan 458,6oC.
Co-Authors - Darmadi Abda Abda ABDUL GANI Abdul Gani Abrar Muslim Adisalamun Adisalamun Aji Aulia Fatulloh Akbar Akbar Amraini Amraini Amrin Rapi Angga Kusumah Ayu Hernita Baharuddin Rahman Cut Fatimah Zuhra Dian Noer Asyari Diyah Ayu Rizki Pradita Erianti Erianti Faridatun Guvroniah Fathurrahmi Fathurrahmi Febriani Febriani Futuh Al Arifin Husaini Husaini Jumadil Saputra Kaharuddin La Nggedo Marlina Marlina Maya Sajida Mihani Mihani Muliadi Ramli Muliadi Ramli Mus Aidah Novi Surianti Nuridha Matiin Nurmayulis Olyvia Novawanda Rahmatun Misriana Raniati Raniati Reza Maulana Muhammad Rizky Puspita Sari Salfauqi Nurman, Salfauqi Sattar Sattar Septi Yulianti Shellatina Shellatina Siti Dea Ananda Siti Lutfiatul Mukaromah Siti Sarah Sukardi Sukardi Sulastri Isminingsih Supardi Ngareng Suraiya Kamaruzzaman Susiyanti Susiyanti Umar Umar Wahyuddin Yenny Mariana Yurdi Maulidani Yusrizal Yusrizal Zulkarnaini Zulkarnaini