1. Need for Sulphur measurement in
Multi-product pipelines
Using PAC Antek High Speed
Sulphur Analyser

2. Moving Products
Different product batches are “pushed” through the system
abutting each other. The product is kept in turbulent flow to
minimize interfaces the mixing zone between batches.
Product Integrity During Movement
Reformulated Low sulphur Kerosene/ High Conventional All premium Reformulated
regular diesel fuel Jet Fuel sulphur regular grades regular
gasoline Diesel gasoline gasoline
Pipelines use optimum sequencing of product grades
to reduce the potential for contamination and/or
downgrading of the products transported.

3. Methods for interface detection
• PAC High Speed Sulphur analysis (1 min.)
• Other techniques ( 4-5 min.)

4. Analysis Times for Various Methods
EDXRF >10 Minutes
Lead Acetate Paper Tape 8+ minutes
PUVF 4-5 minutes
Gas Chromatography 5-6 minutes
ANTEK UVF (standard) 2 ½ minutes
ANTEK UVF HSS 1 minute or
less

5. RAPID RESPONSE OF THE ANALYZER
sulphur IN GASOLINE SAMPLE SWITCHING FROM 110 TO 220 AND 15 mg/kg sulphur
240
225
210
195
Concentration (ppm/wt. S)
180
165
150
135
120
105
90
75
60
45
30
15
0
1 11 21 31 41 51 61 71 81 91 101 111 121 131 141 151
Minutes (1 Analysis/min.)
96-97% RESPONSE IN 1 MINUTE OR LESS

6. RECOVERY TIME FOR GASOLINE
TRANSITION FROM 220 TO 15 mg/kg sulphur GASOLINE
240
225
210
195
180
165
150
135
mg/kg
120
105
90
75
60
45
30
15
0
-3 -2 -1 0 1 2 3 4 5 6 7 8 9
Injections (minutes)
90% RESPONSE IN 1 MINUTE OR LESS

7. Other instruments and technologies use averaging
technique for Sulphur measurement
• T90 Response every 2.5mins or more
3 min 6 min
120
100
80
60
40
20
0
0
0
0
0
0
0
0
0
0
0
30
0
60
90
12
15
18
21
27
30
36
39
24
33

8. Comparison of 6200 HSS with other techniques
• Product change over
• 6200HSS detection
• Other instruments &
techniques
350
300
250
200
150
100
50
0
0 60 120 180 240 300 360 420 480 540 600 660 720 780

9. Principle of measurement
UV-Fluorescence According to ASTM D 5453
R-S + O2 1000+°C  SO2 + combustion products
SO 2 + uv  SO 2 *SO 2 +e
Amount of energy produced is directly proportional
to the number of sulphur atoms in the sample

10. Total sulphur Analytical Flow path
Pyro-UV-Fluorescence Method (ASTM 5453, ISO EN 20846 )
Pyro-Oxygen
Sample Injection Valve
Conditioning Furnace
1050°C
R-S + O2 H2O + SO2 + CO2
Carrier Inlet (O2 ) Heat traced
Gas (N2,)
Hydrocarbon Stream Vent
DCS
UV-Lamp SO2*
SO2+ CO2
photon
4-20 mA Detector PMT

11. Theory of Operation
Detect Sample
SIMPLE UV FLUORESCENCE DETECTOR
Gas Stream from Pyro Tube PMT
Interferenc
UV e
Excitation Filter
Filter and
Light UV Lamp Collimating lenses
Voltage
Tim
e

12. Theory of Operation
SIMPLE UV FLUORESCENCE DETECTOR
SO2 in sample PMT
stream
SO2
UV Lamp
Voltage
Tim
e

13. Theory of Operation
SIMPLE UV FLUORESCENCE DETECTOR
Emission Light
PMT
SO2
UV Lamp
Voltage
Tim
e

14. Theory of Operation
Detect Sample
SIMPLE UV FLUORESCENCE DETECTOR
SO2
PMT
UV Lamp
Voltage
Tim
e

15. Theory of Operation
Detect Sample
SIMPLE UV FLUORESCENCE DETECTOR
SO2
PMT
UV Lamp
Voltage
Tim
e

16. Theory of Operation
Detect Sample
SIMPLE UV FLUORESCENCE DETECTOR
SO2
PMT
UV Lamp
Voltage
Tim
e

17. Theory of Operation
Detect Sample
SIMPLE UV FLUORESCENCE DETECTOR
PMT
UV Lamp
Voltage
Tim
e

18. Petroleum Product:
Flow Through Pipeline
TYPICAL SEQUENCE
High sulphur Diesel
TRANSMIX
Ultra Low sulphur Diesel
REGULAR DIESEL REGULAR PREMIUM REGULAR DIESEL
GASOLINE FUEL GASOLINE GASOLINE GASOLINE FUEL
Jet Fuel
ANTEK P6200 HSS Transmix: Interface
Compatible Interfaces material that must be
processed
Premium Gasoline
• High speed analysis can significantly
reduce the transmix volumes &
increase the operational profitability Regular Gasoline

19. 6200 Additional Features
• Specifications
– Detection Method: UV Fluorescence
– ASTM Method: ASTM D-5453
– Ranges: Adjustable
– Lower Detection: 1 PPM
– Accuracy: +/- 1% of Full-Scale
– Repeatability: < +/- 1% of Full-Scale
– Linearity: < +/- 1% of Full-Scale
– Response Time T90: less than 1 minute

20. Advantages of HSS
• Single Injection  single result.
• Reduced time lag in interface detection.
• No guess work  Exact Sulphur Values.
• Reduced risk of off-spec products in tank.
• Reduced use of transmix.
• Increase operational profitability.
• Complete automation of interface cut.

21. Cost benefit analysis using HSS
PAC Antek Other
6200 HSS techniques
Time taken for 1 mins 4 mins
analysis
Amount of 27KL 70KL
interface required
@ 800KL/hr
Cost of interface Rs. 2,70,000 Rs. 7,00,000
@Rs 10 /ltr
Saving per cut > Rs.4,00,000

22. Field Proven
• No other instrument known to be installed
worldwide for multi-product pipelines yet
• In India, 2 instruments operational at
BPCL and 3 shipped to HPCL
• Large installed base of sulphur analysers
in refineries in India and worldwide

23. In India:
Marsap Services Pvt. Ltd.
Email: info@marsap.com
Web: www.marsap.com
Phone: 022-25516908
Fax: 022-25563356
Thank You!