| 摘要 |
A means of producing high purity oxygen at high recovery plus also byproduct argon while using a low air supply pressure. This is done with a triple pressure distillation arrangement (columns 101, 102, and 103 of Figure 1) having argon stripping sections at the bottom of both the MP (102) and LP (103) columns, a liquid sidestream withdrawal (117) from the MP column, forming feed for the LP column, an intermediate reflux (118) for the LP column which reboils the MP column, and an argon removal capability. |
