Dimerization of cyclopentadiene from side stream from debutanizer
AssigneeKellogg Brown & Root LLC
InventorsDavid Sellinger, Robert Choi, Quo-Chen Yeh, Alok Srivastava, Kristine E. Hamilton, Michael A. Radzicki
Life of this patent
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Abstract
A system and a process for dimerizing cyclopentadiene (CPD) including producing a C6+C7 rich bottoms stream and a C5 rich side draw from a debutanizer, where the C5 rich side draw and at least a portion of the C6+C7 rich bottoms stream are directed to a dimerizer where the CPD is thermally dimerized to dicyclopentadiene (DCPD). DCPD is more stable than CPD and thus safer to handle.
Claims15
A system for dimerizing cyclopentadiene (CPD), the system comprising:
- a debutanizer comprising:
- a feed of C4-C7 hydrocarbons;
- a C4 overhead stream;
- a C6+C7 rich bottoms stream;
- and
- a C5 rich side draw;
- a dimerizer comprising:
- a feed from the C5 rich side draw;
- a feed from at least a portion of the C6+C7 rich bottoms stream;
- and
- a pyrolysis gasoline bottoms product stream.
A process for dimerizing cyclopentadiene (CPD), the process comprising:
- introducing a C4-C7 hydrocarbons stream to a debutanizer;
- debutanizing the C4-C7 hydrocarbons thereby producing:
- a C4 overhead stream;
- a C6+C7 rich bottoms stream;
- and
- a C5 rich side draw;
- introducing the C5 rich side draw and at least a portion of the C6+C7 rich bottoms stream to a dimerizer;
- dimerizing the CPD in the dimerizer;
- and
- producing a bottoms product stream.
An ethylene plant comprising:
- a system for dimerizing cyclopentadiene (CPD), the system comprising:
- a debutanizer comprising:
- a feed of C4-C7 hydrocarbons;
- a C4 overhead stream;
- a C6+C7 rich bottoms stream;
- and
- a C5 rich side draw;
- a dimerizer comprising:
- a feed from the C5 rich side draw;
- a feed from at least a portion of the C6+C7 rich bottoms stream;
- and
- a pyrolysis gasoline bottoms product stream.
Dependencies are inferred from the claim text.