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Questions and Answers
What is the purpose of maximizing the feed stream to E-370?
To minimize the butene content to D-110.
Where is the crankcase oil sourced from before being routed to the compressors?
From D-140 (Crankcase Oil Storage Drum).
What role do the P-361A/B-1 pumps serve in the system?
They route crankcase oil to the lube oil coolers.
What is the function of the C-360A/B Auxiliary Lube Oil Pumps?
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How is cooling water used in conjunction with the CM-360A/B Motor Drives?
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What is the primary function of the Booster Cylinder in the C-360A/B Compressors?
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What type of stream does the Recycle Cylinder compress?
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How does the condensate from D-360 get handled?
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What happens to the vapor after exiting the Booster Cylinder?
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Name two components the vapor passes through after entering the Recycle Cylinder.
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Study Notes
Booster/Recycle Compressors Overview
- C-360A/B comprises two cylinders: Booster Cylinder and Recycle Cylinder.
- The Booster Cylinder compresses overhead vapors from T-350 (Water Wash Tower) and T-380 (Debutenizer) to supply pressure to T-370 (Deethenizer).
- The Recycle Cylinder compresses vapors from D-370 (Deethenizer Reflux Drum) to feed D-110 (Charge Gas Compressor Suction Drum).
Booster Cylinder Details
- Cooled two-phase stream from E-351 (Water Wash Vapor Cooler) mixes with a vapor recycle stream from D-380 (Debutenizer Reflux Drum).
- The mixed stream is sent to D-360 (Booster Cylinder Suction Drum), where condensate is separated.
- D-360's condensate is pumped to T-350 (Water Wash Vapor Scrubber) via P-360A (D-360 Condensate Pump).
- Overhead vapor from D-360 is directed to C-360A/B (Booster/Recycle Compressors) through D-363A/B-1 and D-363A/B-2 (Booster Suction Bottles).
- Discharged vapor from the Booster Cylinder combines with vapor from T-340 (Caustic Wash Vapor Scrubber).
- The combined vapor is cooled in E-360 (Deethenizer Feed Cooler) and enters D-361 (Deethenizer Drier K.O. Drum) to separate any liquid entrainment.
- Some portion of vapor is recycled back to D-360 (Booster Cylinder Suction Drum).
Recycle Cylinder Functionality
- Vapor from D-375 (Recycle Cylinder Suction Drum) feeds into C-360A/B (Booster/Recycle Compressors) Recycle Cylinder.
- The vapor passes through D-363A/B-5 and D-363A/B-6 (Recycle Suction Bottles) before entering the Recycle Cylinder.
- After compression, the vapor flows to D-110 (Charge Gas Compressor Suction Drum) and E-370 (Deethenizer Condenser).
- Maximizing E-370 feed stream minimizes butene content to D-110, thereby reducing butene levels in R-201-205 (Reactors).
Crankcase Oil Management
- Crankcase oil from D-140 (Crankcase Oil Storage Drum) is supplied to C-360A/B (Booster/Recycle Compressors) for lubrication.
- Oil is pumped by P-361A/B-1 to either E-361A/B-1 or E-361A/B-2 (Lube Oil Coolers) for cooling.
- P-361A/B-2 (Auxiliary Lube Oil Pumps) support start-up and stand-by operations.
- The oil is filtered through F-361A/B-1 or F-361A/B-2 before reaching various bearings in CM-360A/B (Motor Drives).
- Used oil returns to the Crankcase Frame Oil Reservoirs in C-360A/B.
Cooling System
- Cooling water is directed to the inner head, booster cylinder jacket, and outer head of CM-360A/B (Motor Drives) to maintain temperature regulation.
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Description
This quiz covers the functionality and components of the Booster/Recycle Compressors, specifically focusing on the C-360A/B system. It explains how the Booster Cylinder compresses overhead vapors and the Recycle Cylinder handles vapors for efficient processing. Explore the details of the associated systems and processes involved with the compressors.
