Title:
An operating method of the recovery subsystem of carbon dioxide, and the recovery subsystem
Document Type and Number:
Japanese Patent JP6088240
Kind Code:
B2
Abstract:
[Problem] In a carbon dioxide collection device and an operation method therefor, to simultaneously achieve an increase in absorption liquid temperature by heating absorption liquid that is being transported from a regeneration column to an absorption column and a reduction of the volume of steam supplied to the regeneration column without changing the conditions for steam supply. [Solution] Primary hot water (35) from a reboiler (21) of the regeneration column (8) is flashed to generate a flashed steam (39); the flashed steam is compressed to generate a VR steam (38) and is supplied to the reboiler; and post-flashing secondary hot water (37) is used as a heat source for heating a rich absorption liquid (9) that is transported to the regeneration column. When doing so, a VR absorption liquid steam (41) obtained by flashing a lean absorption liquid (10) that is transported from the regeneration column to the absorption column (7) can be pressurized and supplied to the regeneration column.
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Inventors:
Koichi Yokoyama
High Naruhito Hon
Kazuki Kobayashi
Jun Shimamura
High Naruhito Hon
Kazuki Kobayashi
Jun Shimamura
Application Number:
JP2012278728A
Publication Date:
March 01, 2017
Filing Date:
December 20, 2012
Export Citation:
Assignee:
Mitsubishi Hitachi Power Systems Co., Ltd.
International Classes:
B01D53/62; B01D53/14; C01B32/50
Domestic Patent References:
| JP2011062700A | ||||
| JP2012110805A | ||||
| JP2009519828A | ||||
| JP2012115779A |
Attorney, Agent or Firm:
Hirotsugu Yoshioka
Tetsuaki Oda
Tetsuaki Oda