近幾年來，火力發電迅速發展勢必種下隱憂，為了供應大量電力，隨之而來的則是空氣汙染，空氣汙染當中包括氮氧化物，本研究係在探討碳捕捉及封存之技術中，以化學迴路燃燒程序來進行脫硝反應，不需耗費大量成本即能解決空氣汙染之問題，又以大自然中容易取得之天然鐵礦，作為載氧體材料評估進行脫硝反應運用於化學迴路燃燒程序之可行性。
本實驗為研究以鐵礦作為載氧體材料與混有NO之空氣反應，模擬鍋爐燃燒後之煙道氣，評估脫硝反應之可行性。初始鐵礦載氧體材料相態為Fe2O3，鐵礦載氧體經還原3分鐘與10分鐘，經XRD分析結果為Fe3O4與FeO兩種相態，接著於實驗室級半套式流體化床反應器進行脫硝反應測試，並通入不同濃度之NO測試鐵礦載氧體之脫硝效果。
實驗結果顯示，應用半套式流體化床反應器進行脫硝反應測試，發現以FeO之還原相態載氧體進行實驗，可與100ppm與200ppm之NO氣體完全反應，在10分鐘內於尾氣端皆沒有偵測到NO與NO2排放，而提高濃度後，與400ppm與600ppm之NO氣體進行反應，尚具有部分效果，因此以鐵礦載氧體進行脫硝反應，具有相當的潛力。

In recent years, the rapid development of thermal power generation is bound to cause potential problems. In order to supply a large amount of electricity, air pollution is followed, and nitrogen pollution is included in the air pollution. This research is to explore the technologies of carbon capture and storage. The Chemical Looping Combustion is used to carry out the denitration reaction, which can solve the problem of the air pollution without much cost. The natural iron ore, which is easily available in nature, is evaluated as an oxygen carrier material for denitration reaction. The feasibility of use in Chemical Looping Combustion.
This experiment is to study the feasibility of using the iron ores oxygen carriers and the air mixed with NO to simulate the flue gas after combustion of the boiler and evaluate the denitration. The phase state of the initial iron ore oxygen carrier material is Fe2O3, and the iron ore oxygen carrier is reduced by 3 minutes and 10 minutes. The results of XRD analysis are Fe3O4 and FeO phase, followed by the fluidized bed reactor. The denitration effect of the iron ores oxygen carriers were tested by using different concentrations of NO.
Finally, it’s found that the experiment is carried out with the reduced phase oxygen carrier of FeO, which can completely react with 100 ppm and 200 ppm of NO gas, There were not NO and NO2 emissions at the exhaust gas end in 10 minutes. Therefore, the denitration reaction with iron ore carrier has considerable potential.

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