| 摘要 |
A process for separating off a nitrogen-rich fraction from a feed fraction containing essentially nitrogen and hydrocarbons, wherein the feed fraction is separated by rectification a nitrogen-rich fraction and a methane-rich fraction, is described. According to the invention, during an interruption of the supply of the feed fraction, at least temporarily, the nitrogen-rich fraction (4″) and the methane-rich fraction (5″) are compressed and jointly supplied to the process as feed fraction, wherein the compression of the nitrogen-rich fraction (4″) and the methane-rich fraction (5″) can be performed separately and/or jointly. |
