Abstract This paper reports on an experimental study on production of oxygen-enriched carbon dioxide stream by a fixed-bed packed with a perovskite-type ceramic sorbent La 0.1 Sr 0.9 Co 0.5 Fe 0.5 O 3− δ , which can adsorb oxygen from air. Oxygen-enriched carbon dioxide stream is produced by passing carbon dioxide into the fixed-bed saturated with oxygen. Fixed-bed experiments were performed to study the oxygen separation performance of this sorbent. The separation process was experimentally confirmed to be a reversible chemical sorption and desorption process. Experimental results are also reported to show the effects of operation conditions, including adsorption time, flow rates of feed gases, and fixed-bed temperatures in the adsorption and desorption steps, on average oxygen concentration of the product stream, oxygen recovery, carbon dioxide recovery and productivity. Experimental results suggest that adsorption and desorption temperatures are the most critical operation parameters. Under the optimum conditions (850 and 900 °C adsorption and desorption temperatures) the fixed-bed adsorber can produce an oxygen-enriched carbon dioxide stream with average oxygen concentration, oxygen recovery, carbon dioxide recovery and productivity, respectively, of 58.8%, 18.7%, 26.6% and 0.272 ml/min. This oxygen-enriched carbon dioxide stream may be used as an oxidant in the oxyfuel combustion process.
Carbon Dioxide Recovery Oxygen Recovery Passing Carbon Dioxide Oxyfuel Combustion Process Average Oxygen Concentration Desorption Temperatures Carbon Dioxide Carbon Productivity Carbon Dioxide Productivity Fixed-bed Experiments
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Climate change Research Articles published between Jan 23, 2023 to Jan 29, 2023
Jan 30, 2023
Articles Included: 3
Climate change adaptation has shifted from a single-dimension to an integrative approach that aligns with vulnerability and resilience concepts. Adapt...Read More
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