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All Journal Indonesian Journal of Chemistry Jurnal Rekayasa Kimia & Lingkungan Jurnal Natural Aceh International Journal of Science and Technology Journal Of Carbazon
Saiful Saiful
Chemistry Department, FMIPA Universitas Syiah Kuala Darussalam- 23111,Banda Aceh Indonesia
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Energy Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Neuroscience Physics

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Journal : Jurnal Rekayasa Kimia

 1 
Sintesis dan Karakterisasi Membran Poliuretan dari Minyak Biji Karet dan Heksametilen-1,6-diisosianat Salfauqi Nurman; Marlina Marlina; Saiful Saiful; Sitti Saleha
Jurnal Rekayasa Kimia & Lingkungan Vol 10, No 4 (2015): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (342.334 KB) | DOI: 10.23955/rkl.v10i4.3772

Abstract

Minyak biji karet dapat dimanfaatkan untuk pembuatan membran poliuretan. Minyak biji karet memiliki bilangan hidroksi 40,33 mgKOH/g dan bilangan iod 154,05 gI2/g. Sintesis membran poliuretan menggunakan metode ikatan silang. Ikatan silang terbentuk dengan mereaksikan minyak biji karet sebagai sumber gugus -OH dengan heksametilen-1,6-diisosianat sebagai sumber gugus -NCO.  Membran poliuretan yang optimum dihasilkan pada komposisi 4,55:5 (g/g) memiliki sifat homogen, kering, elastis, berwarna kuning kecoklatan, bergelombang, fluks 0,544 L/m2.h.bar dan faktor rejeksi 100%. Hasil karakterisasi membran menunjukkan terbentuknya ikatan uretan pada bilangan gelombang 3480 cm-1, struktur morfologi membran padat, memiliki dua tahap dekomposisi pada 210 oC dan 392 oC, titik transisi gelas 65 oC, kekuatan tarik 1,03 kgf/mm2 dan elongasi 497,14%. Dari hasil karakterisasi membran poliuretan, membran tersebut dapat digolongkan pada tipe membran reverse osmosis.
Performance of Mixed Matrix Membrane Adsorbers for Lysozyme Separation Saiful Saiful
Jurnal Rekayasa Kimia & Lingkungan Vol 8, No 1 (2011): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (384.152 KB)

Abstract

An application of EVAL based mixed matrix membrane adsorbers containing a strongcation exchange resins (Lewatit SP 112 WS) for capturing of Lysozyme (LZ) has been investigated.The preparation and performance of the mixed matrix membrane adsorbers is studied with 1-octanol as additive. The membranes in this study are prepared by immersion precipitation out of a DMSO solution containing 14% EVAL and with or without 14% 1-octanol. All membranes contain 65% resin based on dry solids. The morphology of the membranes are characterized using scanning electron microscopy.The membrane structure demonstrated open and interconnected porous structure with large resin particles are distributed in membrane structure. The MMM adsorber proved high adsorption capacity for capturing and concentrating LZ in feed solution. The Mixed matrix membranes (MMM) concept was anticipated as a moderate process with an increasedcapacity and a maximum adsorption capacity of 166 mg LZ/g membrane. The MMM act in protein separations both as protein purifier and concentrator and is an attractive alternative for packed bed systems because of its high capacity, high throughput, robustness, and ease of scaling up.Keywords: Mixed Matrix Membrane (MMM), Lysozyme (LZ), Adsorption, Membrane adsorber
Pengembangan Membran Magnesol untuk Pemurnian Biodiesel Saiful Saiful; Nurfitriana Nurfitriana; Muliadi Ramli; Ilham Maulana
Jurnal Rekayasa Kimia & Lingkungan Vol 9, No 3 (2013): Jurnal Rekayasa Kimia & Lingkungan
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (435.402 KB) | DOI: 10.23955/rkl.v9i3.780

Abstract

Magnesol membrane has been prepared by mixing chitosan polymer with magnesol particles via phase inversion method. The optimum compositions of adsorptive membranes were 3% chitosan, 15% DMF and 60% loading adsorbent. The porosity of these membranes was 34,17% and swelling degree was 51,91%. The membrane clean water flux was 224,4 Lm‑2h‑1 at a transmembrane pressure of 2.5 bar.  The adsorptive membrane possesses an open and interconnected porous structure with a large surface area available for biodiesel purities adsorption. The results showed that after contacting in 60 minutes, numbers of acid value was reduced as 81,12% which is in accordance with value of SNI quality standards. In addition, the soap content adsorbed was 86,74%  as potassium soap and 86,73% as sodium soap. The regenerated membrane can be reused with mantaining the high adsorption capacity. The methanol was better than ethanol to regenerate the magnesol membrane. The Magnesol membrane will be a new alternative method for biodiesel purification.Keywords: biodiesel, membrane adsorption, chitosan, magnesol, acid number, soap
Co-Authors - Darmadi Abrar Muslim Abrar Muslim Adisalamun Adisalamun Amraini Amraini Anneza Astriet Binawati Ginting Cut Fatimah Zuhra Faisal Abdullah Fathurrahmi Fathurrahmi Febriani Febriani Febriani Febriani Febrina Pratiwi Hesti Meilina Ilham Maulana Ilham Maulana Ilham Maulana Indra Indra irfan mustafa Khairan . Khairunnas Ahmad Mahmudi . Marlina Marlina Marlina Marlina Marlina Marlina Marlina Marlina Marlina Marlina Muhammad Iqhrammullah Muliadi Ramli Muliadi Ramli Muliadi Ramli Muliadi Ramli Muliadi Ramli Muliadi Ramli Murniana . Nasrullah Idris Nizar Mahmud Nurdin Saidi Nurfitriana Nurfitriana Nurul Kamila Rahmatun Misriana Rahmi Rahmi Rinaldi Idroes Saida Rasnovi Salfauqi Nurman, Salfauqi Shellatina Shellatina Siti Sarah Sitti Saleha Sitti Saleha Suhendrayatna Suhendrayatna Suraiya Kamaruzzaman Susilawati Susilawati Syahrun Nur T. Banta Darmawan Teuku Mohamad Iqbalsyah Thaharah Ramadhani Ulfa Riana Yulidar Yulidar