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Published byMarkus Derricott Modified over 9 years ago
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1 AC Reformulyzer Course AC Analytical Controls January 2001
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2 AC Reformulyzer Determining Gasoline Specifications Efficiently
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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
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4 AC Reformulyzer Hydrocarbon type analysis of finished gasoline and feedstocks
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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
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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
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7 AC Reformulyzer determines carbon number distribution of : Paraffins Isoparaffins Olefins Naphthenes Aromatics Oxygenates
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8 AC Reformulyzer Application Range Reformate FCC naphtha Isomerate Alkylate Straight naphtha Gasoline
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9 Reported group types paraffins iso-paraffins olefins naphtenes aromatics oxygenates
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10 Hydrocarbon Structure Paraffins: Formula: C n H 2n+2 Straight chain components Saturates
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11 Paraffins examples n-pentane C-C-C-C-C iso-pentane C-C-C-C C
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12 Hydrocarbon Structure Naphthenes: Formula: C n H 2n Ring/cyclo compounds Saturates
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13 Napthenes examples cyclohexane methylcyclohexane
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14 Polynapthenes
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15 Hydrocarbon Structure Aromatics: Formula: C n H n Ring/cyclo compounds with three double bond Unsaturated and chemically reactive
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16 Aromatics examples Benzene Toluene
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17 Hydrocarbon Structure Olefins: Formula: C n H 2n Compounds with one double bond Unsaturated and chemically reactive
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18 Olefins examples n-buteneC-C-C=C iso-penteneC-C=C-C C
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19 Trivial names paraffin= alkane = saturate olefin = alkene = unsaturate
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20 Trivial names straight alkanes=normal paraffin's branched alkanes=iso-paraffin's straight alkenes=normal olefins branched alkenes=iso-olefins cyclo-alkanes=naphtenes
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21 Number of possible hydrocarbon isomers
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22 AC Reformulyzer Configuration
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23 Reformulyzer Flow
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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
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25 OV 275 packed polar column mounted in the GC oven 130°C, isothermal conditioned in a separate GC
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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
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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
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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
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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
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30 HP 1 (OV 101) column non polar capillary column mounted inside the oven 130°C isothermal. separation by boiling point
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31 PT column Temperature 180°C (220°C) Hydrogenation of Olefins Mounted in the AC compartment controlled by heater 2 of the ACI
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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
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33 Reformulyzer flow diagram
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34 Reformulyzer left side compartment
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35 Reformulyzer oven compartment
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36 Piona flow diagram
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37 Piona left side compartment
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38 Piona oven compartment
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39 Piona prefractionator flow diagram
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40 C4 stream Various hydrocarbon types by Carbon number range
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41 Straight Run Various hydrocarbon types by Carbon number range
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42 Reformulyzer - Reformer Feed
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43 Reformate Various hydrocarbon types by Carbon number range
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44 Reformulyzer - Reformate
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45 FCC Naphtha Various hydrocarbon types by Carbon number range
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46 Reformulyzer - FCC Naphtha
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47 Isomerate Various hydrocarbon types by Carbon number range
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49 Alkylate Various hydrocarbon types by Carbon number range
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51 Oxygenates Various hydrocarbon types by Carbon number range
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52 MTBE Various hydrocarbon types by Carbon number range
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53 Finished Gasoline
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54 Gasoline mode
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55 OPNA Mode
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56 Winterspec Mode
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57 Reformulyzer Report
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58 Reformulyzer Report
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59 Reformulyzer Report
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60 Site Specific Testing
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61 Site Specific Testing
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62 Methods & Developments * no precision data **withdrawn
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63 Method Comparison ASTM D 3606 ASTM D 5580 ASTM D 4815 ASTM D 6296 ASTM D 5599 ASTM D 6293 - Reformulyzer MSD Single column Less Information A lot of Information Correct Data Incorrect Data
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