Process for removing nitrogen from a nitrogen-containing hydrocarbon-rich fraction comprises cooling the hydrocarbon-rich fraction in one or more heat exchangers

摘要

Process for removing nitrogen from a nitrogen-containing hydrocarbon-rich fraction comprises cooling the hydrocarbon-rich fraction in one or more heat exchangers; compressing; partially condensing and feeding to a nitrogen separation process. Preferred Features: The hydrocarbon-rich fraction is compressed at a pressure for the temperature progression in the heat exchanger(s). A C1-rich fraction obtained in the partial condensation step is pumped to a high pressure and is purified with the C1-rich fraction obtained in the nitrogen separation process.