PENGENALAN ION EXCHANGE RESIN DI PG RAFINASI

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1 PENGENALAN ION EXCHANGE RESIN DI PG RAFINASI

2 Purifikasi PT Jawamanis Rafinasi
14 Nov 2007 Various pictures of NEW Ion Exchange Resin Amberlite IRA 900 Cl Imac HP 1110 Na Amberlite 252 Na According to picture; Amberlite IRA900 Cl and Amberlite 252 Na are strong base and strong acid resin macroreticular matrix. Amberjet 1200 H and Amberlite IR 120 H is the same strong acid cation resin, but Jet copolymer process will make the best uniform particle size which can observed under microscopic as well as naked eyes. Imac HP1110 Na is the best resin for drinking water industry, very low leakage of T.O.C. and never release color and odor during normal basis operation as well as starting up. Amberjet 1200 H Amberlite IR 120 H Selamat Bekerja dan Belajar Memahami Resin

3 Purifikasi PT Jawamanis Rafinasi
Decolorisasi gula tebu 14 Nov 2007 De-colorisasi gula tebu Sukrosa C12H22O11 Aplikasi LAR, APR Tujuan Remove color membuat white crystals/sugar Bentuk Resins Strong base acrylic and polystyrene chloride 3 konfigurasi resin Acrylic FPA98Cl Acrylic/Polystyrene Polystyrene FPA90Cl Regenerasi garam Alkaline 10% O OH CH2OH HOCH2 Sucrose is disaccharide carbohydrate chain, when it was inverted by acid, the result is one of glucose and fructose molecule for each. Selamat Bekerja dan Belajar Memahami Resin

4 Bahan2 Pembentuk Warna Caramels Melanoïds Pembentuk warna akibat perusakan syrup (Reaksi Maillard’s ) Senyawa Phenolic dari besi

5 Pigment/pembentuk warna alami tebu Terbentuk dalam proses pengolahan
Mekanisme Penyerapan Warna Pigment/pembentuk warna alami tebu Terbentuk dalam proses pengolahan Karakter zat warna exhibit acid/anionic - Load on strong base quaternary ammonium group Penyerapan fisik gaya Van der Waals Daya seleksi Polystyrene besar, interaksi hydrophobic aromatic Daya seleksi Acrylic rendah, hydrophilic, menghilangkan zat warna dgn BM kecil Kemampuan regenerasi Acrylics lebih menyeluruh Acrylic digunakan untuk melindungi styrenic anion exchange resin

6 Purifikasi PT Jawamanis Rafinasi
Kondisi Process 14 Nov 2007 Service 2~4 bed volumes per hour, 80℃, 65 weight % sucrose Color loading calculation Bed volumes*DS*Icumsa Color 60,000 acrylic, 30,000 polystyrene Sweetening off Backwashing step Alkaline-Brine Regeneration 200~240 g/l dry NaCL Use as 10% with % NaOH 2-3 bed volumes per hour 50~60℃ Dark waste solution produced Why is NaCl and NaOH? NaCl first, is quite cheap and powerful for this matter, and the second is Cl could remove SO4, sulfate, ino on resin. If not Sulfate will probably bind with calcium or magnesium and convert to gypsum, CaSO4 and then troublesome is coming in very soon. Why is 10% NaCL, but actually could be used only 3-4% from total? Selectivity of each ion on bead and in circumstance during regeneration should be considered. In 1000 ppm. Of TDS. SAC resin prefer to exchange active sodium ion with calcium ion in solution, meanwhile, when TDS reach to 100,000 ppm. ( 10% ), SAC with Calcium exhausted prefer Na ion rather than Ca. Therefore, we can regenerate Ca-exhausted SAC with 10% NaCl by using selectivity properties of individual resin and concentration of regenerant as well. Selamat Bekerja dan Belajar Memahami Resin

7 EFFLUENTS and expect dark color spent out
Decolourisation process Idealistic Practical STRONG BASE RESIN Macroporous Styr. and/or Acryl. Cl- STRONG BASE RESIN Macroporous Styr. and/or Styrenicl. Cl- Remelt of raw sugar Decolourised Syrup CRYSTALLIZATION White Sugar NaCl & NaOH EFFLUENTS and expect dark color spent out

8 Operasional resin: Konsep dasar and reaksi kimia
Decalcifikasi gula cair Konsep dasar and reaksi kimia Operasional resin: 2(RSO3-Na) + Ca (RSO3) 2-Ca + 2 Na+ Regenerasi Resin: (RSO3) 2-Ca + 2 Na (RSO3-Na) + Ca2+

9 Tujuan teknis dan efisiensi
Co softening dari Nira Tebu dengan kation resin Tujuan teknis dan efisiensi Prosentase Amberlite FPA22Na or 200 C Na kecil yang dimasukan di dasar strong base anion resin bed-lihat gambar Strong cation Na menghilangkan hardness, mengurangi ash content. Tujuan Softens syrup mencegah kerak di evaporator Ada beberapa instalasi resin menggunakan ini, Kelebihan Garam dari anion regeneration dapat juga meregenerasi cation resin Technical gap ~ Ada keterbatasan teknis dlm pelaksanaan Mengurangi waktu proses kristalisasi Kinerja kristalisasi bertambah cepat Mengurangi pembentukan kerak dalam evaporation , mengurangi anti scalant dosis , juga bisa mengurangi kontamination kimia dalam pengolahan gula.

10 Purifikasi PT Jawamanis Rafinasi
14 Nov 2007 Desain Sederhana Kolom Resin “DOWNFLOW” OPERATION BACKWASH Amberlite FPA 98 Cl Strong base anion Regenerant Solution How much volume do we need to mix?. By practical in LAR, 20% of total SBA volume could be applied in the acrylic column. Due to different of bulk density, color, and specific gravity could help two resins sharply separate when operation or backwashing step. Strong acid cation EFFLUENT Amberlite FPC 22 Na or Amberlite 200 C Na Selamat Bekerja dan Belajar Memahami Resin

11 TERIMA KASIH