METHOD FOR REMOVING NITROGEN

摘要

The invention relates to a method for removing a nitrogen-rich fraction from a feed fraction which substantially contains nitrogen and hydrocarbons, wherein the feed fraction is subjected to separation into a nitrogen-rich and a methane-rich fraction by rectification. According to the invention and during an interruption of the feed of the feed fraction, the nitrogen-rich fraction (4'') and the methane-rich fraction (5'') are compressed at least temporarily and are jointly fed to the method as a feed fraction, whereby the compression of the nitrogen-rich (4'') and the methane-rich fraction (5'') can be carried out in a separate and/or joint manner.