EP 2347205 B1 20160720 - METHOD FOR REMOVING NITROGEN
Title (en)
METHOD FOR REMOVING NITROGEN
Title (de)
VERFAHREN ZUM ABTRENNEN VON STICKSTOFF
Title (fr)
PROCÉDÉ DE SÉPARATION D'AZOTE
Publication
Application
Priority
- EP 2009007878 W 20091103
- DE 102008056191 A 20081106
Abstract (en)
[origin: WO2010051970A2] The invention relates to a method for removing a nitrogen-rich fraction from a feed fraction which substantially contains nitrogen and hydrocarbons. According to said method, the feed fraction is subjected to separation into a nitrogen-rich and a methane-rich fraction by rectification, the methane-rich fraction being evaporated and then superheated at as high a pressure as possible relative to the feed fraction to be cooled for refrigeration. The still liquid or partially evaporated methane-rich fraction (5') is supplied to a circulation container (D), only the liquid portion of the methane-rich fraction (5') accumulated in the circulation container (D) is completely evaporated preferably in natural circulation and the top product (7) of the circulation container (D) is superheated (E1).
IPC 8 full level
F25J 3/02 (2006.01)
CPC (source: EP US)
F25J 3/0209 (2013.01 - EP US); F25J 3/0233 (2013.01 - EP US); F25J 3/0257 (2013.01 - EP US); F25J 2200/06 (2013.01 - EP US); F25J 2200/72 (2013.01 - EP US); F25J 2200/76 (2013.01 - EP US); F25J 2200/78 (2013.01 - EP US); F25J 2235/60 (2013.01 - EP US); F25J 2245/42 (2013.01 - EP US); F25J 2250/02 (2013.01 - EP US); F25J 2270/42 (2013.01 - EP US); F25J 2280/02 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102008056191 A1 20100512; AU 2009313086 A1 20100514; AU 2009313086 A9 20151203; AU 2009313086 B2 20151203; EP 2347205 A2 20110727; EP 2347205 B1 20160720; MX 2011004351 A 20110523; PL 2347205 T3 20170831; RU 2011122643 A 20121220; RU 2537326 C2 20150110; US 2011209499 A1 20110901; WO 2010051970 A2 20100514; WO 2010051970 A3 20120830
DOCDB simple family (application)
DE 102008056191 A 20081106; AU 2009313086 A 20091103; EP 09748255 A 20091103; EP 2009007878 W 20091103; MX 2011004351 A 20091103; PL 09748255 T 20091103; RU 2011122643 A 20091103; US 200913127724 A 20091103