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Low capital implementation of distributed distillation in ethylene recovery

Patent ·
OSTI ID:1175969
An apparatus for recovering ethylene from a hydrocarbon feed stream, where the apparatus is a single distillation column pressure shell encasing an upper region and a lower region. The upper region houses an ethylene distributor rectifying section and the lower region houses a C2 distributor section and an ethylene distributor stripping section. Vapor passes from the lower region into the upper region, and liquid passes from the upper region to the lower region. The process for recovering the ethylene is also disclosed. The hydrocarbon feed stream is introduced into the C2 distributor section, and after a series of stripping and refluxing steps, distinct hydrocarbon products are recovered from the C2 distributor section, the ethylene distributor stripping section, and the ethylene distributor rectifying section, respectively.
Research Organization:
BP Corporation North America Inc., Warrenville, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC07-01ID14090
Assignee:
BP Corporation North America Inc. (Warrenville, IL)
Patent Number(s):
7,129,387
Application Number:
10/393,029
OSTI ID:
1175969
Country of Publication:
United States
Language:
English

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