Review Article
Polymeric Gas-Separation Membranes for Petroleum Refining
Table 9
Economical study for the production of 20 tons of enriched oxygen (35 mol%) with different technologies [
132].
| | Technology | Power requirement
(kWh/tons O2) | Capital cost
($/tons O2) | Operating cost
($/tons O2) |
| | Cryogenic distillation | 350 | >70,000 | 39 | | Pressure swing adsorption (PSA) | 285 | 25,000–70,000 | 26 | | Membrane | 177 | 16,000–27,000 | 23 |
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