Title:
C4フラクションの連続的分別
Document Type and Number:
Japanese Patent JP4575158
Kind Code:
B2
Abstract:
In a continuous process for fractionating a C4 fraction (C4) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing wall (TW) is installed in the longitudinal direction in the extractive distillation column (EDK) to form a first region (A), a second region (B) and a lower combined column region (C) and a top stream (C4H10) comprising the butanes is taken off from the first region (A), a top stream (C4H8) comprising the butenes is taken off from the second region (B) and a stream (C4H6) comprising the hydrocarbons from the C4 fraction which are more soluble in the selective solvent (LM) than are the butanes and the butenes is taken off from the lower combined column region (C).
Inventors:
Till Adrian
Thomas hill
Claus kindler
Bernd Haida
Thomas hill
Claus kindler
Bernd Haida
Application Number:
JP2004523761A
Publication Date:
November 04, 2010
Filing Date:
July 22, 2003
Export Citation:
Assignee:
BASF SE
International Classes:
C07C7/08; B01D3/40; C07C5/22; C07C7/04; C07C9/10; C07C9/12; C07C11/08; C07C11/09; C07C11/167
Domestic Patent References:
| JP2004514647A | ||||
| JP2002528603A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
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