ac reformulyzer course
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
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AC Reformulyzer Course
AC Analytical Controls
January 2001
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AC Reformulyzer
Determining Gasoline
Specifications Efficiently
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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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AC Reformulyzer
Hydrocarbon type analysis of finished
gasoline and feedstocks
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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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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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AC Reformulyzer determines carbon number
distribution of:
• Paraffins
• Isoparaffins
• Olefins
• Naphthenes
• Aromatics
• Oxygenates
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AC Reformulyzer Application Range
• Reformate
• FCC naphtha
• Isomerate
• Alkylate
• Straight naphtha
• Gasoline
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Reported group types
• paraffins
• iso-paraffins
• olefins
• naphtenes
• aromatics
• oxygenates
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Hydrocarbon Structure
Paraffins: • Formula: CnH 2n+2
• Straight chain components• Saturates
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Paraffins examples
n-pentane C-C-C-C-C
iso-pentaneC-C-C-C
C
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Hydrocarbon Structure
Naphthenes:
• Formula: CnH 2n
• Ring/cyclo compounds• Saturates
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Napthenes examples
cyclohexane
methylcyclohexane
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Polynapthenes
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Hydrocarbon Structure
Aromatics:• Formula: CnH n
• Ring/cyclo compounds with three double bond
• Unsaturated and chemically reactive
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Aromatics examples
Benzene
Toluene
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Hydrocarbon Structure
Olefins:
• Formula: CnH 2n
• Compounds with one double bond• Unsaturated and chemically reactive
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Olefins examples
n-butene C-C-C=C
iso-pentene C-C=C-C
C
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Trivial names
• paraffin = alkane = saturate
• olefin = alkene = unsaturate
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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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Number of possible hydrocarbon isomers
Carbon No. Paraffins Olefins 5 3 6 6 5 17 7 9 36 8 18 92 10 75 >1000
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AC Reformulyzer Configuration
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Reformulyzer Flow
O V-275
O le fin tra p
M S-5A
M o lsie ve
De te c to r
13X
Alc /Ethe rAlc o ho lSa m p le Tra p Tra p
O V-101 Po ra p a k
No n-Po la r + Ethe rs + C 6/C 7 Aro ma tic s ro ute
Aro ma tic s + Alc o ho ls ro ute
Ethe rs + A lc o ho ls + Aro ma tic s ro ute
Alc o ho ls + Aro m a tic s ro ute
No n p o la r ro ute
O le fins
n-Pa ra ffins
Ethe rs + C 6/C 7 Aro ma tic s
Pa r + Na p hth
Aro ma tic s + Ethe rs a nd Alc o ho ls
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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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OV 275
• packed polar column
• mounted in the GC oven
• 130°C , isothermal
• conditioned in a separate GC
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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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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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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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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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HP 1 (OV 101) column
• non polar capillary column
• mounted inside the oven
• 130°C isothermal.
• separation by boiling point
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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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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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Reformulyzer flow diagram
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Reformulyzer left side compartment
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Reformulyzer oven compartment
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Piona flow diagram
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Piona left side compartment
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Piona oven compartment
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Piona prefractionator flow diagram
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C4 streamVarious hydrocarbon types by
Carbon number range
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Straight RunVarious hydrocarbon types by
Carbon number range
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Reformulyzer - Reformer Feed
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ReformateVarious hydrocarbon types by
Carbon number range
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Reformulyzer - Reformate
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FCC NaphthaVarious hydrocarbon types by
Carbon number range
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Reformulyzer - FCC Naphtha
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IsomerateVarious hydrocarbon types by
Carbon number range
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AlkylateVarious hydrocarbon types by
Carbon number range
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OxygenatesVarious hydrocarbon types by
Carbon number range
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MTBEVarious hydrocarbon types by
Carbon number range
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Finished Gasoline
Pa ra ffins
Na p hthe ne s
O le fins
Aro m a tic s
Ethe rs (M TBE)
4C # 8 12 16
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Gasoline mode
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OPNA Mode
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Winterspec Mode
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N or m a liz ed w eigh t p e rc e n t r e su lt sC - n r P a r a f . O le f .N a p h . C y c l O l . A r o m .
3
4
5
6
7
8
9
1 0
1 .0 2
0 .4 91 .7 0
1 4 .7 63 .1 5
1 6 .3 81 3 .9 4
0 .0 80 .1 80 .0 7
0 .0 80 .3 71 .3 42 .1 50 .3 1
0 .1 00 .5 81 .7 21 .5 2
1 .6 49 .1 0
1 7 .7 14 .5 80 .8 7
T o t a l 3 .9 2 5 1 .4 4 0 .3 3 4 .2 4 3 3 .9 0
T o t a l
0 .0 01 .3 3
1 7 .6 82 0 .4 9
8 .7 63 2 .6 41 0 .8 0
2 .1 39 3 .8 4
H ig h b o il in g a ro m a tic s 0 .3 3H ig h b o il in g s a tu ra te s 0 .7 3T o ta l h y d ro c a rb o n s 9 4 .8 9
Reformulyzer Report
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N orm a lized v o lu m e p ercen t re sultsC - n r P a r a f . O le f .N a p h . C y c l O l . A r o m .
3
4
5
6
7
8
9
1 0
1 .3 1
0 .4 91 .7 0
1 5 .1 83 .3 5
1 8 .1 81 6 .6 1
0 .0 80 .1 70 .0 7
0 .0 80 .3 91 .4 42 .4 20 .3 7
0 .0 90 .5 61 .6 41 .4 8
1 .3 77 .6 3
1 4 .8 83 .8 50 .7 2
T o t a l 3 .7 7 5 6 .8 2 0 .3 1 4 .6 9 2 8 .4 6
T o t a l
0 .0 01 .6 8
2 0 .5 82 2 .1 5
8 .2 23 0 .2 4
9 .3 21 .8 5
9 4 .0 5
H ig h b o il in g a ro m a tic s 0 .2 8H ig h b o il in g s a tu ra te s 0 .6 4T o ta l h y d ro c a rb o n s 9 4 .9 7
Reformulyzer Report
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M T B E 5 .1 1 5 .0 3 0 .9 3
O x yg en ates re su ltsO x y g e n a t e W t % L V % O 2 %
D IN 5 1 4 48 -2B e n z e n e 0 .7 2 L V %T o ta l A r o m a tic s 2 8 .7 L V %T o ta l O le f in s 5 .0 L V %T o ta l S a tu ra tes 6 1 .2 L V %T o ta l O x y g e n 0 .9 W t%
D ra ft
Reformulyzer Report
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Site Specific Testing
No. SampleName
Composition Characteristics
1 ReformerFeed
Paraffins,Naphthenes
Aromatics,Benzene
No olefinsLow concentration of
aromatics
2 Reformate Paraffins,Naphthenes
Aromatics,Benzene
Olefins
Low concentration ofolefins
High concentrationof aromatics
Benzene: 5 vol%3 FCC
NaphthaParaffins,
NaphthenesAromatics,
BenzeneOlefins
High concentrationof olefins
Benzene: < 1 vol%
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Site Specific Testing
No. SampleName
Composition Characteristics
4 Gasoline 1 ReformateFCC NaphthaOxygenate
Reformate 50%FCC Naphtha 40%MTBE: 10 weight%
5 Gasoline 2 ReformateFCC NaphthaOxygenate
Reformate 50%FCC Naphtha 40%ETBE: 10 weight%
6 Gasoline 3 ReformateIsomerate,
AlkylateFCC NaphthaOxygenate
Reformate 20%Isomerate 10%,
Alkylate 15%FCC Naphtha 50%Ethanol 5 weight %
7 Gasoline 4 Gasoline 3 butexcludingoxygenates
Reformate 20%Isomerate 10%,
Alkylate 15%FCC Naphtha 55%
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Methods & Developments
Methods PNA PIONA Reformulyzer
SMS 2343 X
UOP 870 X
IP 382 X
DIN 51448-1 X X*
ASTM D 5443 X
ASTM draft X**
ASTM D 6293 X
Draft DIN 51448-2 X
* no precision data** withdrawn
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Method Comparison
ASTM D 3606ASTM D 5580ASTM D 4815ASTM D 6296ASTM D 5599
ASTM D 6293 - Reformulyzer
MSD
Single column
Less Information
A lot ofInformation
CorrectData
IncorrectData