Fig. 1. Material and energy balance of cold box.
Fig. 2. double column type O2 ASU.
Fig. 3. dual condenser type O2 ASU.
Fig. 4. Distribution of exergy destruction for ASU cold box.
Fig. 5. Exergy destruction according to feed air pressure on cold box.
Fig. 6. Exergy loss according to LMTD of MHE on cold box.
Table 1. Simulation condition for O2 ASU
Table 2. Comparison of simulation results for O2 ASU process
Table 3. The exergy calculation conditions of O2 ASU
Table 4. The exergy calculation results of O2 ASU
Table 5. Comparison between the exergy destruction of double column and dual condenser ASU cold box
Table 6. Total exergy destruction about the unit process of the ASU
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