Title:
低温空気分離装置
Document Type and Number:
Japanese Patent JP2004535543
Kind Code:
A
Abstract:
Low temperature air decomposition plant comprises several modules consisting of a heat exchanger unit, a pressure column (2), and a low pressure column (3); and cold boxes formed as a main box and a secondary box. The secondary box contains at least one of the modules. Preferred Features: At least one or no module is present in the module. A pure argon rectification unit is provided in the plant and comprises partial columns (6, 7), a pure argon line, a pump (11) for recycling reflux liquid from the sump to the second partial column, and an argon head condenser (9). The main box is a pure argon column (8).
Inventors:
Merler, Stefan
Badel, Wolfgang
Badel, Wolfgang
Application Number:
JP2002521901A
Publication Date:
November 25, 2004
Filing Date:
August 13, 2001
Export Citation:
Assignee:
LINDE AKTIENGESELLSCHAFT
International Classes:
F25J3/04; F25B9/00; (IPC1-7): F25J3/04; F25B9/00
Domestic Patent References:
| JPH0666042A | 1994-03-08 | |||
| JPH10180026A | 1998-07-07 | |||
| JPH08261644A | 1996-10-11 | |||
| JPS6176296U | 1986-05-22 | |||
| JPH10325674A | 1998-12-08 | |||
| JPH0338656A | 1991-02-19 | |||
| JPH06347164A | 1994-12-20 |
Foreign References:
| FR2780147A1 | 1999-12-24 |
Attorney, Agent or Firm:
Tadashi Sato
Toshiya Sato
Toshiya Sato