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Questions and Answers
What stream does the overhead vapor from D-310A/B get scrubbed with in T-330?
A C10-C12 stream from E-426.
What is the purpose of the Saturate Reduction System?
To remove aluminum alkyl from the bottom liquid product stream.
What happens to the overhead vapor after it exits T-330?
It is routed to the shell side of E-330A/B for cooling.
After D-330, where does most of the vapor go?
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What is the significance of the excess vapor from D-330?
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What do the bottom liquid product streams from T-330 and D-330 get routed to?
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What is a critical issue that aluminum alkyls may cause in downstream equipment?
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How is the vapor from E-330A/B cooled?
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What type of product stream is formed at the bottom of D-310A/B?
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What is the role of the C10-C12 stream in the TEA Scrubber?
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Where is the overhead vapor from the TEA Scrubber directed after scrubbing?
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What happens to any entrained liquid at D-330?
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What is the fate of most of the vapor after D-330?
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What process removes aluminum alkyl from the bottom liquid product streams?
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What is the purpose of routing excess vapor from D-330 back to D-110?
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What type of equipment is prone to issues due to the presence of aluminum alkyls?
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Study Notes
Reactor Effluent Processing
- Effluent exits through a common header and is directed to D-310A/B (Reactor Effluent Separators).
- D-310A/B separates the effluent into an overhead vapor recycle ethylene stream and a bottom liquid product stream containing NAO (Navigated Aqueous Organic) and catalyst.
TEA Scrubber Operations
- Overhead vapor ethylene stream is routed to T-330 (TEA Scrubber) for treatment.
- T-330 uses a C10-C12 stream from E-426 (C8 Tower Bottoms Cooler) to scrub vaporized or entrained aluminum alkyls, preventing ethylene polymerization and potential downstream plugging.
Saturate Reduction System
- Bottom liquid from D-310A/B is transferred to the Saturate Reduction System for aluminum alkyl removal.
Ethylene Recycling
- Overhead vapor from T-330 is cooled in E-330A/B (Ethylene Recycle Coolers) before proceeding to D-330 (H.P. Recycle Knock-out Drum).
- D-330 separates any entrained liquids from the vapor stream.
Vapor Stream Distribution
- The vapor from D-330 splits into two streams:
- Most is directed to E-373 (Purge Gas Heater) within the Deethenizer System.
- The excess vapor is recycled back to D-110 (Charge Gas Compressor Suction Drum) as recycled ethylene in the Ethylene Feed Section.
Caustic Wash Processing
- Bottom liquid product streams from both T-330 and D-330 are sent to T-340 (Caustic Wash Vapor Scrubber) for further processing.
Reactor Effluent Processing
- Effluent exits through a common header and is directed to D-310A/B (Reactor Effluent Separators).
- D-310A/B separates the effluent into an overhead vapor recycle ethylene stream and a bottom liquid product stream containing NAO (Navigated Aqueous Organic) and catalyst.
TEA Scrubber Operations
- Overhead vapor ethylene stream is routed to T-330 (TEA Scrubber) for treatment.
- T-330 uses a C10-C12 stream from E-426 (C8 Tower Bottoms Cooler) to scrub vaporized or entrained aluminum alkyls, preventing ethylene polymerization and potential downstream plugging.
Saturate Reduction System
- Bottom liquid from D-310A/B is transferred to the Saturate Reduction System for aluminum alkyl removal.
Ethylene Recycling
- Overhead vapor from T-330 is cooled in E-330A/B (Ethylene Recycle Coolers) before proceeding to D-330 (H.P. Recycle Knock-out Drum).
- D-330 separates any entrained liquids from the vapor stream.
Vapor Stream Distribution
- The vapor from D-330 splits into two streams:
- Most is directed to E-373 (Purge Gas Heater) within the Deethenizer System.
- The excess vapor is recycled back to D-110 (Charge Gas Compressor Suction Drum) as recycled ethylene in the Ethylene Feed Section.
Caustic Wash Processing
- Bottom liquid product streams from both T-330 and D-330 are sent to T-340 (Caustic Wash Vapor Scrubber) for further processing.
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Description
Explore the processes involved in reactor effluent separation, including the routing of vapor and liquid streams. This quiz delves into the functioning of key components like D-310A/B and T-330 in managing ethylene and aluminum alkyls. Enhance your understanding of chemical engineering systems.
