EP 1191291 B1 20050504 - Control process for cryogenic rectification plant
Title (en)
Control process for cryogenic rectification plant
Title (de)
Regelverfahren für eine Tieftemperatur-Rektifikationsanlage
Title (fr)
Procédé de régulation pour une installation de rectification cryogénique
Publication
Application
Priority
- EP 01122754 A 20010921
- DE 10047102 A 20000921
- EP 01103827 A 20010215
Abstract (en)
[origin: EP1191291A1] Process for regulating the capacity of a low temperature rectification plant comprises feeding a liquid to a column (1) operating at elevated temperature in a low temperature rectification plant containing a the column (1) and a column (2) operating at a low temperature; and feeding the liquid from the sump of the column (1) to the column (2). The amount of liquid removed from the sump of column (1) and fed to column (2) is regulated using a through-flow regulator (4). An adjusting parameter for the regulator is adjusted to a required through-flow amount and the level of the liquid in the sump is adjusted without using a theoretical value corresponding to the amount of liquid removed. Preferred Features: The low temperature rectification plant is used for decomposing air. The plant additionally contains an argon column (8) with a head condenser (9), a valve (5) for controlling the amount of liquid flowing to the column (2), and a valve (11) for controlling the liquid entering the head condenser of the argon column.
IPC 1-7
IPC 8 full level
F25J 3/04 (2006.01)
CPC (source: EP)
F25J 3/04303 (2013.01); F25J 3/04412 (2013.01); F25J 3/04678 (2013.01); F25J 3/04793 (2013.01); F25J 3/048 (2013.01); F25J 2235/58 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
DOCDB simple family (application)
EP 01122754 A 20010921