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Bleaching of oil

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Bleaching of oil

  1. 1. Submitted by:-Anay N KachariaT.Y. Btech. – Oils
  2. 2. ..We need to take a look at a Bottle of Crude OilWHAT‘S IN THE OIL? METALS WAXES GUMS ANTI-OXIDANTS ... And There are FATTY ACIDSS UNWANTEDNUTRIENTS.. OIL PRODUCTS! COLOUR STABILISERS VITAMINS PEROXIDES LIPIDS TOCOPHEROLS SOAPS ODOURSJL Confidential
  3. 3. Crude Oil Physical Refining Chemical Refining Degumming Degumming Gums Alkali Bleaching Soap neutralization Stock Bleaching Deodourization Deodourization Refined Neutralised ,Fatty acid Bleached Bleached ,distillates deodourized Deodourized oil oil
  4. 4. • What is bleaching ?• Why is bleaching really done ?
  5. 5. • It is based on ADSORBTION• it is Represented by an equation developedby a great scientist Freundlich log(x/m) = logK + nlogc• Process will continue till Thermodynamicequilibrium is reached
  6. 6. • Temperature should be maintained between 90-110 degree Celsius.• Contact Period of 20 – 30 min.• Bleaching is performed under reduced pressure• Type and amount of bleaching Agent highly influence the process parameters .
  7. 7. 2 major processes include –• Batch process
  8. 8. A : Bleacher A1 : Oil inletB : Barometric condenser B1 : Oil adsorbent outletC : Vacuum pump C1 : Steam inletD1: Condensate outletE1 : Bleaching Material inlet F1: Water Inlet
  9. 9. • Continuous process : Crude Oil Inlet 1: Continuous bleacher B: Oil-Earth suspension to be filtered 2: Earth tank C: Bleached oil inlet 3: Earth dosing unit D: Bleached oil outlet 4: Mixer E: Water Inlet 5: Earth-oil pump F: Steam Inlet 6: Heat Exchanger 7;Cooling unit 8;Condenser; 9;pump
  10. 10. • Fuller’s Earth- • It is a natural clay which is very adsorbtive • Mainly consists of minerals that belong to the aluminium silicate family • Main component is bentonite
  11. 11. • For most bentonites necessary surface area and pores need to be created• Activation is done with acid• Main component of bentonite is montmorillonite
  12. 12. • Acid activated Bleaching Earth- • Its Catalytic property is self explained by the acid status. • Its maximum importance comes with its property of degradation of peroxide • Results in the formation of trans fatty acids
  13. 13. • Activated Carbon -•Can be derived from a variety of coal• Contain micropores, mesopores & macropores• It has a large adsorbent surface in a relatively small volume.
  14. 14. A closer look at Bleaching VACUUM VACUUM BE 1,4% TRISYL 0,1% BE 0,8% Bleaching Vessel full SO (eg: Palm Oil) WHAT? 100°C 100°C THATS WHAT!FROM REFINERY To DEO FROM REFINERY To DEO FILTER FILTER BLEACHER BLEACHER 40% Oil/60%BE For a 200Kmt refinery, this Using TriSyl with BE will save $330K . . Just by tweaking . . will result in ~$840K oil loss! BASED ON Adsorbent SJL Confidential ACTUAL CASE Combinations!
  15. 15. Schematic TriSyl Schematic ABE Massive Internal Low External Surface Area Surface AreaSJL Confidential
  16. 16. Economic Model: TriSyl/BE CombinationActual Case: TriSyl®/Spent/fresh BE/ Three Filters/92m2Unigra Italy THEORETICAL ECONOMIC MODEL: Actual Case TriSyl® - Physical Refining of Palm Oil/600 tons per day ABE TriSyl® +ABE TONS OIL PRODUCTION ANNUALLY 200000 200000 200000 DOSAGE ABE% 1,40 0,10 0,80 TONS ADSORBENT CONSUMED ANNUALLY 2800 200 1600 PRICE ABE KG/$ 0,36 1,00 0,36 % OIL LOSS ON FILTER CAKE 40 40 40 H2O CONTENT ON ADSORBENT % 10 60 10 TONS DRY ADSORBENT ANNUALLY 2520 80 1440 TONS OIL LOSS ON FILTER CAKE ANNUALLY 1680 53 960 PRICE CRUDE OIL $/KG 0,500 0,500 0,500 TONS FILTER CAKE DISPOSAL ANNUALLY 4200 133 2400 DISPOSAL COSTS $/KG 0,015 0,015 0,015 $ TOTAL ADSORBENT COST 1008000 200000 576000 $ OIL LOSS ON FILTER CAKE $ TOTAL DISPOSAL COST 840000 63000 $600K! 26667 2000 480000 36000 TOTAL COSTS/SAVINGS 1911000 In total by 228667 tweaking 1092000 TOTAL $ SAVINGS ANNUALLY WITH TriSyl® 590333 Adsorbents! SJL Confidential

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