Oxygen Recovery

Analytical method Oxygen added (ppm) Total oxygen (ppm) T (°C) Oxygen found (ppm) Oxygen recovery (%)... 

Extractive solvents reduce the solubilization donor solvents increase it, but involve incorporation. A relation between benzene and pyridine solubility is dependent on wash conditions. Finally, oxygen recovery and corrected solubility are related, the relationship varying with the solvent used. 

Agbossou K., Kolhe M.L., Hamelin J., Bernier E., Bose T.K., Electrolytic hydrogen based renewable energy system with oxygen recovery and re-utilisation, Ren. Energ., 29,1305-1318, 2004. 

The Fischer-Tropsch aqueous product was not further refined and was treated as a wastewater stream. This was in line with the simplicity of the refinery design, poor economy of scale for oxygenate recovery, and inherently low water-soluble oxygenate production from Co-LTFT synthesis. 

The operating economics are characterized primarily by the recovery of oxygen. Recovery is defined as the quantity of O2 delivered by the process divided by the quantity of O2 that was present in the feed air. 

The definition of product oxygen recovery defines the minimum required feed rate for a specified product purity and recovery. That relationship is that the feed flow must be the product oxygen purity (%) divided by the recovery (% of feed O2) and divide also by the mole fraction of O2 in feed air. For 20.9 mol% O2 in air this is ... 

If only operated during low off-peak rate times would have low ann load factor need more expensive H2 storage Assume Hydrogn Systems Electrolysis at 150 psig pressure, Norsk Hydro Stuard systems are low pressure Assumed oxygen recovery for by-product sales with large central plant case, but only minor economic impact... 

Assumed oxygen recovery for by-product sales with large central plant case, but only minor economic impact... 

Figure 2. Oxygen recovery ratio and Wastewater treatment efficiency for oxygen concentration...

FIGURE 3.17 Oxygen recovery vs. expander o w for various purity levels. 

OEA production from air is favored by vacuum-driven membranes operating at low oxygen recovery. In this case, the OEA purity is simply a function of the membrane s selectivity and the vacuum level at which the OEA permeate is withdrawn. Unfortunately, the high-selectivity membranes employed in nitrogen... 

The calculation also indicates that the oxygen recovery should be limited within 20 — 40% so as to reduce the overall oxygen production cost of the MIEC membrane systems. 

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