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首頁 > 資料下載 > CO2捕集氧化燃燒技術(shù)CO2 CAPTURE TECHNOLOGIES OXY COMBUSTION WITH CO2 CAPTURE
CO2捕集氧化燃燒技術(shù)CO2 CAPTURE TECHNOLOGIES        OXY COMBUSTION WITH CO2 CAPTURE CO2捕集氧化燃燒技術(shù)CO2 CAPTURE TECHNOLOGIES        OXY COMBUSTION WITH CO2 CAPTURE

CO2捕集氧化燃燒技術(shù)CO2 CAPTURE TECHNOLOGIES OXY COMBUSTION WITH CO2 CAPTURE

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  • 更新時間:2021-09-22
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通常用于燃燒的空氣中大約80%的氮氣用于將鍋爐和其他熱回收系統(tǒng)的煙氣二氧化碳含量稀釋到15%以下。燃燒后捕獲過程的目的是將相對稀釋的二氧化碳從大量的煙氣氮氣中分離出來。在氧燃燒過程中,燃燒前空氣中的大量氮被除去。由此產(chǎn)生的燃燒產(chǎn)物將含有高達90%的二氧化碳(干基)。如果法規(guī)和地球化學(xué)允許,未經(jīng)處理的、脫水的煙氣可以直接儲存,無需進一步凈化。否則,煙氣中的雜質(zhì)(主要是O2、N2和Ar)可以通過將煙氣(在中等壓力下)降低到CO2冷凝而雜質(zhì)不冷凝的溫度來去除。

The nitrogen that is approximately 80% of the air commonly used for combustion serves to dilute flue gas CO2 content to less than about 15% for boilers and other thermal heat recovery systems. Post-combustion capture processes are designed to separate the relatively dilute CO2 from the bulk flue gas nitrogen. In oxy-combustion processes, the bulk nitrogen is removed from the air before combustion. The resulting combustion products will have CO2 content up to about 90% (dry basis). If regulations and geochemistry permit, the raw, dehydrated flue gas may be stored directly without further purification. Otherwise, the flue gas impurities (predominantly O2, N2, and Ar) may be removed by reducing the flue gas (at moderate pressure) to a temperature at which the CO2 condenses and the impurities do not.

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