AC RGA Analyzers 1

AC RGA Analyzers

Multi-Purpose Gas Analysis

AC RGA Analyzers 2

Refinery Gas Analysis

• Control specifications and purity of finished gas products: LPG, Ethylene, Propylene and Butenes

• Control downstream processing

• Detect impurities of hydrocarbons, inert gases or acid gases

• Calculate the market value of the gas: Calorific Value

AC RGA Analyzers 3

AC Refinery Gas Analysis Range

Multi-Purpose % AnalysisApplication Components characterized by

concentration level RGA Model 1012 Hydrogen, oxygen, nitrogen, carbon

monoxide, carbon dioxide hydrogen sulfide, carbonyl sulfide C1-C4, C5+

RGA Model 1029 (UOP 539)

Hydrogen, helium, oxygen, nitrogen, carbon monoxide, carbon dioxide

hydrogen sulfide C1-C5, C6+

Fast RGA (UOP 539)

Hydrogen, helium, oxygen, nitrogen, carbon monoxide, carbon dioxide

hydrogen sulfide C1-C5, C6+

RGA Model 1050 Hydrogen, nitrogen, oxygen, carbon dioxide

hydrogen sulfide, sulfur dioxide C1-C2

AC RGA Analyzers 4

Refinery GasRGA, LPG, Fixed Gases

Sat.Gas Plant

ButaneRGA, LPG

PropaneRGA, LPG

EthaneRGA, LPG

MethaneRGA

NaphthaReformulyzer ASTM D 6293DHA,SIMDIS ASTM D 3710

AC RGA Analyzers 5

Refinery GasRGA, LPG, Fixed Gases

Methane/H2RGA, Fixed Gases

NaphthaReformulyzer ASTM D 6293DHA, SIMDIS ASTM D 3710

CrackedGas Plant

Butenes/ButadienesButenes/Butadienes

PropyleneEthylene/Propylene,STEP

EthyleneEthylene/Propylene,STEP

AC RGA Analyzers 6

AC RGA Features• Linearity range of 0.1 - 100 volume %• Response factors:

– Theoretical– In house– Calibrated

• Certified calibration gases• Guaranteed analysis• Reports in weight %, liquid volume %,

gas volume %• Physical properties calculation

AC RGA Analyzers 7

Application RangeAC RGA 1029

The AC RGA 1029 system determines the

composition of most refinery gas streams

and reports:

• hydrogen

• helium

• inert gases: oxygen, nitrogen, carbon monoxide, carbon dioxide

• H2S

• C1-C5 hydrocarbons

AC RGA Analyzers 8

System DescriptionAC RGA 1029

• Agilent 6890 Series gas chromatograph

• Electronic Pneumatics Control (EPC)

• Packed GC columns

• 2 Thermal Conductivity Detectors (TCD)

AC RGA Analyzers 9

Flow Diagram AC RGA 1029

12

3

4

5

61

2

3

4

5

6

T C D

B ack D etecto r

Sam p le in

A u x 4 (N 2)

C o lu m n 4

C o lum n 3

C o lum n 1

C o lum n 2

12

3

4

56

7

8

9

10

12

3

4

56

7

8

9

10

T C D

F ro n t D etecto r

P T A

Sam p le o u t

C o lum n 5

F ro n t I n let

B ack f lu sh V en t

A ux 3 (N 2)

P T A

o n / o f f

S-restr.

V 1

S-restr.

AC RGA Analyzers 10

AC RGA 1029

1. Hyd ro g e n2. n-He xa ne 3. Hyd ro g e n4. Pro p a ne5. Ac e tyle ne6. Pro p ylene7. Hyd ro g e n Sulfid e8. Iso b uta ne9. Pro p a d ie ne10. n -Buta ne11. 1-Bute ne12. Iso b ute ne13. tra ns-2-Bute ne14. c is-2-Bute ne

15 . 1 ,3 -Bu ta d ie ne16 . Iso p e n ta ne17 . n -Pe n ta ne18 . 1 -Pe n te ne19 . tra ns-2-Pe n te ne20 . c is-2 -Pe n te ne21 . 2 -m e thyl-2 -Bu te ne22 . C a rb o n D io xid e23 . Ethyle ne24 . Etha ne25 . Arg o n /O xyg e n26 . N itro g e n27 . M e tha ne28 . C a rb o n M o no xid e

4030100 M inu te s 20

AC RGA Analyzers 11

Application Range AC Fast RGA

The AC Fast RGA system determines thecomposition of most refinery gas streamsand reports:• hydrogen• helium• inert gases: oxygen, nitrogen, carbon

monoxide, carbon dioxide• H2S• C1-C5 hydrocarbons

AC RGA Analyzers 12

System Description AC Fast RGA

• Agilent 6890 Series gas chromatograph

• Electronic Pneumatics Control (EPC)

• Packed GC columns

• Thermal Conductivity Detector (TCD)

• Flame Ionization Detector (FID)

AC RGA Analyzers 13

Flow Diagram AC Fast RGA

12

3

4

56

7

8

9

10

FID

Column 2

Column 1

12

3

4

56

7

8

9

10

TCD

Vent

He (Aux 4)

12

3

4

5

6

12

3

4

56

7

8

9

10

Column 5

Column 4

Column 3Sample out

He (Aux 3)

Front Inlet H 2

12

3

4

56

7

8

9

10

Vent N 2

Ref. N 2

Vent N 2

Ref He

Vent He

Vent He

N 2 (Aux 5)

Column 6

225

210309

301

PTA

PTA

S-restrictor

S-restrictor

on/off0.25 mL 0.50 mL

0.50 mL

AC RGA Analyzers 14

1. Hydrogen2. Carbon Dioxide3. Ethylene4. Ethane5. Acetylene6. Oxygen7. Nitrogen8. Methane9. Carbon Monoxide

1

2

34

5

6

7

8

9

0 10 20

minutes

AC Fast RGA Model

AC RGA Analyzers 15

1. C6+ 10. n-Butane2. Methane 11. 1-Butene3. Ethane/Ethylene12. Isobutene4. Propane 13. trans-2-Butene5. Acetylene 14. cis-2-Butene6. Propylene 15. 1,3-Butadiene7. Cyclopropane 16. Isopentane8. Isobutane 17 n-Pentane9. Propadiene

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16 17

0 5 10 15 20

minutes

AC Fast RGA Model