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AC Reformulyzer Course

AC Reformulyzer Course. AC Analytical Controls January 2001. AC Reformulyzer. Determining Gasoline Specifications Efficiently. AC Reformulyzer. Hydrocarbon type/ Carbon number analysis Dedicated to Gasoline and Gasoline-related streams Multi-dimensional analysis system

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AC Reformulyzer Course

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  1. AC Reformulyzer Course AC Analytical Controls January 2001

  2. AC Reformulyzer Determining Gasoline Specifications Efficiently

  3. AC Reformulyzer • Hydrocarbon type/ Carbon number analysis • Dedicated to Gasoline and Gasoline-related streams • Multi-dimensional analysis system • Incorporates ASTM, DIN and IP standard test methods

  4. AC Reformulyzer Hydrocarbon type analysis of finished gasoline and feedstocks

  5. AC Reformulyzer • multi-column GC method • separates hydrocarbon groups: paraffins, isoparaffins, naphthenes, oxygenates, aromatics and olefins in finished gasoline and gasoline related streams, such as reformate, FCC naphtha, isomerate and alkylate • incorporates standard test methods ASTM D 6293 and Draft method DIN 51448-2

  6. AC Reformulyzer • Characterizes total composition of finished gasoline and blending stocks in one analysis • Conducting one analysis rather than several reduces potential human bias and results in a more cost effective lab

  7. AC Reformulyzer determines carbon number distribution of: • Paraffins • Isoparaffins • Olefins • Naphthenes • Aromatics • Oxygenates

  8. AC Reformulyzer Application Range • Reformate • FCC naphtha • Isomerate • Alkylate • Straight naphtha • Gasoline

  9. Reported group types • paraffins • iso-paraffins • olefins • naphtenes • aromatics • oxygenates

  10. Hydrocarbon Structure Paraffins: • Formula: CnH 2n+2 • Straight chain components • Saturates

  11. Paraffins examples n-pentane C-C-C-C-C iso-pentane C-C-C-C C

  12. Hydrocarbon Structure Naphthenes: • Formula: CnH 2n • Ring/cyclo compounds • Saturates

  13. Napthenes examples cyclohexane methylcyclohexane

  14. Polynapthenes

  15. Hydrocarbon Structure Aromatics: • Formula: CnH n • Ring/cyclo compounds with three double bond • Unsaturated and chemically reactive

  16. Aromatics examples Benzene Toluene

  17. Hydrocarbon Structure Olefins: • Formula: CnH 2n • Compounds with one double bond • Unsaturated and chemically reactive

  18. Olefins examples n-butene C-C-C=C iso-pentene C-C=C-C C

  19. Trivial names • paraffin = alkane = saturate • olefin = alkene = unsaturate

  20. Trivial names • straight alkanes = normal paraffin's • branched alkanes = iso-paraffin's • straight alkenes = normal olefins • branched alkenes = iso-olefins • cyclo-alkanes = naphtenes

  21. Number of possible hydrocarbon isomers

  22. AC Reformulyzer Configuration

  23. Reformulyzer Flow

  24. Reformulyzer columns • OV 275 : polar Pre-column • Ether/alc trap (tenax) : (1)Adsorption of ethers : (2)Adsorption of aromatic fractions • Olefin trap : Adsorption of olefins • 5A trap : Adsorption of n-Paraffins • 13X : sep. of Nap/Par by carbon number • HP-1 (OV 101) : separation of Aromatic fractions • PT catalyst : hydrogenation of Olefins • Alc. Pre-column : Alcohol retaining column

  25. OV 275 • packed polar column • mounted in the GC oven • 130°C , isothermal • conditioned in a separate GC

  26. Olefin trap • Adsorption temperature :approx 140°C • Desorption temperature :250°C • Conditioning : with FCC sample • Mounted in the AC left side compartment • Controlled by heater 4 of the ACI

  27. 13 X column • Temperature programmed 100°C - 430°C • Conditioning temp maximum 490°C • Mounted in the AC compartment • Controlled by heater 1 of the ACI

  28. Ether/ Alcohol Trap • Adsorption temperature 70°C • Separation temperature approx. 100°C • Desorption temperature 280°C • Conditioned for 5 minutes at 280°C Max. • Mounted in the AC compartment • Controlled by heater 3 of the ACI

  29. 5A trap • Adsorption temperature approx. 140°C • Desorption temperature 450°C • Conditioned for 25 minutes at 450°C Max. • Mounted in the AC compartment • Controlled by heater 5 of the ACI

  30. HP 1 (OV 101) column • non polar capillary column • mounted inside the oven • 130°C isothermal. • separation by boiling point

  31. PT column • Temperature 180°C (220°C) • Hydrogenation of Olefins • Mounted in the AC compartment • controlled by heater 2 of the ACI

  32. Alcohol pre-column • Initial temperature approx. 160 °C • Alcohol retaining column • Mounted at the GC injector B position • Controlled by Auxilary 2 heating zone

  33. Reformulyzer flow diagram

  34. Reformulyzer left side compartment

  35. Reformulyzer oven compartment

  36. Piona flow diagram

  37. Piona left side compartment

  38. Piona oven compartment

  39. Piona prefractionator flow diagram

  40. C4 streamVarious hydrocarbon types by Carbon number range

  41. Straight RunVarious hydrocarbon types byCarbon number range

  42. Reformulyzer - Reformer Feed

  43. ReformateVarious hydrocarbon types by Carbon number range

  44. Reformulyzer - Reformate

  45. FCC NaphthaVarious hydrocarbon types by Carbon number range

  46. Reformulyzer - FCC Naphtha

  47. IsomerateVarious hydrocarbon types byCarbon number range

  48. AlkylateVarious hydrocarbon types byCarbon number range

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