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Bleaching of oil
- 1. Submitted by:- Anay N Kacharia T.Y. Btech. – Oils
- 3. ..We need to take a look at a Bottle of Crude Oil WHAT‘S IN THE OIL? METALS WAXES GUMS ANTI-OXIDANTS ... And There are FATTY ACIDSS UNWANTED NUTRIENTS.. OIL PRODUCTS! COLOUR STABILISERS VITAMINS PEROXIDES LIPIDS TOCOPHEROLS SOAPS ODOUR SJL Confidential
- 4. 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
- 5. • What is bleaching ? • Why is bleaching really done ?
- 6. • It is based on ADSORBTION • it is Represented by an equation developed by a great scientist Freundlich log(x/m) = logK + nlogc • Process will continue till Thermodynamic equilibrium is reached
- 7. • 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 .
- 8. 2 major processes include – • Batch process
- 9. A : Bleacher A1 : Oil inlet B : Barometric condenser B1 : Oil adsorbent outlet C : Vacuum pump C1 : Steam inlet D1: Condensate outlet E1 : Bleaching Material inlet F1: Water Inlet
- 10. • 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
- 11. • 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
- 12. • For most bentonites necessary surface area and pores need to be created • Activation is done with acid • Main component of bentonite is montmorillonite
- 13. • 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
- 14. • 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.
- 16. 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 ~$840K oil loss! BASED ON Adsorbent SJL Confidential ACTUAL CASE Combinations!
- 17. Schematic TriSyl Schematic ABE Massive Internal Low External Surface Area Surface Area SJL Confidential
- 19. Economic Model: TriSyl/BE Combination Actual Case: TriSyl®/Spent/fresh BE/ Three Filters/92m2 Unigra Italy THEORETICAL ECONOMIC MODEL: Actual Case TriSyl® - Physical Refining of Palm Oil/600 tons per day ABE TriSyl® +ABE TONS OIL PRODUCTION ANNUALLY 200000 200000 200000 DOSAGE ABE% 1,40 0,10 0,80 TONS ADSORBENT CONSUMED ANNUALLY 2800 200 1600 PRICE ABE KG/$ 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