C-360A/B Booster Cylinder

• C-360A/B consists of two separate cylinders.

Booster Cylinder

• The booster cylinder compresses overhead vapors from T-350 and T-380 to a pressure sufficient to feed T-370.
• A cooled two-phase stream from E-351 combines with a vapor recycle stream from D-380 and goes to D-360.
• Condensate is separated from the two-phase stream in D-360 and pumped by P-360A (D-360 Condensate Pump) to T-350.
• Overhead vapor from D-360 goes to C-360A/B Booster Cylinder, entering D-363A/B-1 and D-363A/B-2 before entering C-360A/B Booster Cylinder.
• Vapor exits C-360A/B Booster Cylinder, then goes to D-363A/B-3 and D-363A/B-4.
• The vapor stream from C-360A/B Booster Cylinder combines with the vapor stream from T-340.
• The combined vapor is routed to the shell side of E-360 and is cooled by cooling water on the tube side.
• The cooled vapor goes to D-361 (Deethenizer Drier K.O. Drum).
• Any liquid entrained in the cooled vapor is separated in D-361 and routed back to T-350.
• Some of the vapor is routed back to D-360.

Recycle Cylinder

• Overhead vapor from D-375 goes to C-360A/B Recycle Cylinder, entering D-363A/B-5 and D-363A/B-6 before entering C-360A/B.
• Vapor exits C-360A/B Recycle Cylinder, then goes to D-363A/B-7 and D-363A/B-8.
• The vapor is routed to D-110 and E-370.
• E-370 feed stream is maximized to minimize butene content to D-110, which subsequently minimizes butene to R-201-205.
• P-381 (Off Spec Butene Booster Pump) is used in this process.

Equipment Details

• Listed equipment: D-360, P-360A, C-360A/B, D-363A/B-1, D-363A/B-2, D-363A/B-3, D-363A/B-4, D-363A/B-5, D-363A/B-6, D-363A/B-7, D-363A/B-8.

D-360 (Booster Cylinder Suction Drum)

• Size: 2’6”D x 7’8”L.
• Equipped with an internal demister pad below the top vapor outlet to remove liquid from the two-phase stream from E-351 and the vapor recycle stream from the Debutenizer System.
• The two-phase stream enters the side, liquid exits the bottom, and vapor exits the top.
• A tangential entry nozzle aids in droplet disengagement by reducing liquid entrainment via cyclone action.
• A mesh stainless steel demister pad on the upper donut baffle prevents liquid entrainment in overhead vapors; the baffle has drain holes.
• A donut ring below the feed inlet nozzle minimizes turbulence transferred to the liquid surface in the drum bottom.
• Level controller and sight glass taps have stilling wells for accurate level measurement.
• The bottom liquid outlet nozzle has a vortex breaker.

P-360A (D-360 Condensate Pump)

• Positive displacement pump driven by a 7.5 HP induction electric motor.
• Routes condensate from D-360 to T-350.

C-360A/B (Booster/Recycle Compressors)

• Single-stage, double acting compressors operating at 509 rpm and 450 hp.
• Compress vapor from D-360 to a pressure high enough to feed T-370.

D-363A/B-1 (C-360A/B Booster Suction Bottles #1)

• Size: 18”D x 9’2”L.
• Vapor enters the top and exits the bottom.

D-363A/B-2 (C-360A/B Booster Suction Bottles #2)

• Size: 18”D x 3’2”L.
• Vapor enters the side and exits the bottom into C-360A/B.

D-363A/B-3 (C-360A/B Booster Discharge Bottles #1)

• Size: 18”D x 3’2”L.
• Vapor enters the top and exits the side.

D-363A/B-4 (C-360A/B Booster Discharge Bottles #2)

• Size: 18”D x 7’2”L.
• Vapor enters the top and exits the side.

D-363A/B-5 (C-360A/B Recycle Suction Bottles #1)

• Size: 18”D x 9’2”L.
• Vapor enters the top and exits the bottom.

D-363A/B-6 (C-360A/B Recycle Suction Bottles #2)

• Size: 18”D x 3’2”L.
• Vapor enters the side and exits the bottom into C-360A/B.

D-363A/B-7 (C-360A/B Recycle Discharge Bottles #1)

• Size: 18”D x 3’2”L.
• Vapor enters the top and exits the side.

D-363A/B-8 (C-360A/B Recycle Discharge Bottles #2)

• Size: 18”D x 7’2”L.
• Vapor enters the top and exits the side.