TG&T Plant Operator Training Class IV Refrigeration Update 11-09

DRAWING 05A

332 MMCFD 976 psig 120 F 8 gpm 110 F 10 gpm 956 psig 328 MMCFD -30 F MMCFD 39 GPM HC 13 GPM EG/Water 1.2 MMCFD 980 psig 120 F 77% C1 9% C2 6% C3 2% C4+

GAS/GAS EXCHANGERS DRAWING 05A EG Injection Exchange heat between Warm Treated Gas from sweetening and Cold Treated Gas from Cold Separator yields Dry Gas to Sales Ethylene Glycol injected into Wet Treated Gas upstream of exchangers and directly into the head at the tube sheet

2 DRAWING 05B

2 Wet Treated Gas in the tube side. Refrigerant Propane in the shell side EG injected into Wet Treated Gas upstream of Chiller inlet and directly into the head at the tube sheet

3 DRAWING 05B LIC-4432 operates LV-4432 to maintain a sufficient level to keep the tubes covered LV-4432

4 DRAWING 05B Refrigerant Reclaimer removes unwanted refrigerant components. Heavier contaminants drain off the bottom of the chiller into the Reclaimer where Hot Oil flashes the propane out and into the Compressor vapor return line. Contaminants drain to a sump.

5 DRAWING 05B

5 Three phase separator (SEE ILLUSTRATION)

DRAWING 05B 5

CONDENSATE STABILIZATION

DRAWING 05B 5

6 DRAWING 06

7

8 DRAWING 07

ETHYLENE GLYCOL REGENERATION

9 DRAWING 05B

9 ACID GAS COOLER

9 DRAWING 15

10 DRAWING 18B

11

12 DRAWING 18A

13

14 DRAWING 18B

REFRIGERATION LOOP

2 DRAWING 05B

2

3

15 DRAWING 08

16 DRAWINGS 09A & 09B

16 DRAWINGS 09A & 09B HP 2 stage compressors capable of moving 4.4MMSCFD of propane each at 210 psig

17 DRAWING 09B

HP fans for each bay 3 bays total Duty; 16,300 MBTU each bay

18 DRAWING 10

18 Acts like a Refrigerant Surge Tank Level is maintained manually by adding Refrigerant Propane to the Chiller Refrigerant inlet line from the Refrigerant Storage Tank

19 DRAWING 08