The method of separating nitrogen from the rich liquefied hydrogen flow is divided into the first and second flow. In this flow, the p'rimera of the secondary flow serves as the reflux of a separation column, and the temperature difference of the second flow is greater than the lower part of the column.

摘要

Method for Separating n2 of Liquefied Hydrocarbon Flow, where the flow after its Liquefaction and supercooling is Detached column for Separating N2Applying undercurrent of Liquefied Hydrocarbon column 1A and 2a as reflux to feed undercurrent at higher temperature to lower column.