Ethylene separation process
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United States of America Patent
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Jun 27, 2017
Grant Date -
Jul 10, 2014
app pub date -
Jan 10, 2013
filing date -
Jan 10, 2013
priority date (Note) -
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Abstract
Ethylene separation processes are described herein. The ethylene separation processes generally include introducing a feed stream including ethylene and butene into a de-ethenizer; and separating the ethylene from the butene via fractional distillation within the de-ethenizer to form an overhead stream including separated ethylene and a bottoms stream including separated butene, wherein the de-ethenizer operates at a pressure of less than 350 psig.
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