首頁(yè) > 資料下載 > CCS行業(yè)路線圖-高純度CO2源-行業(yè)評(píng)估最終草案(2010)CCS Industry Roadmap – High Purity CO2 Sources_Final Draft Sectoral A

CCS行業(yè)路線圖-高純度CO2源-行業(yè)評(píng)估最終草案(2010)CCS Industry Roadmap – High Purity CO2 Sources_Final Draft Sectoral A

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為大多數(shù)工業(yè)活動(dòng)（例如鍋爐，渦輪機(jī)，鋼鐵爐和水泥窯）實(shí)施二氧化碳（CO2）捕集和封存（CCS）技術(shù)需要一個(gè)捕集步驟，以將相對(duì)稀的CO2流轉(zhuǎn)化為更高的濃度，因此以允許經(jīng)濟(jì)運(yùn)輸和存儲(chǔ)。在這些應(yīng)用中，廢氣流中的CO2濃度約為3-20％（Metz等，2005），在壓縮，運(yùn)輸和存儲(chǔ)之前，通常需要將其濃縮至> 85％。因此，CO2捕集過(guò)程需要從廢氣流中存在的其他氣體（特別是氮?dú)猓∟2），一氧化碳（CO）和元素氧（O2））中去除CO2。替代地，引入替代燃燒方法可以限制排氣流中存在的其他氣體的量，例如在接近純凈的氧氣中燃燒燃料。

Implementation of carbon dioxide (CO2) capture and storage (CCS) technologies for most industrial activities – for example boilers, turbines, iron & steel furnaces and cement kilns - requires a capture step to convert a relatively dilute stream of CO2 to a higher concentration so as to allow economic transportation and storage. In these applications, concentrations of CO2 in exhaust gas streams range from approximately 3-20% CO2 (Metz et al, 2005), which typically need to be concentrated to >85% prior to compression, transport and storage. CO2 capture processes thus entails the stripping of the CO2 from other gases present in the exhaust gas stream, in particular nitrogen (N2), carbon monoxide (CO) and elemental oxygen (O2). Alternatively, introduction of alternative combustion methods can limit the amount of other gases present in exhaust streams, for example combusting fuels in nearly pure oxygen.

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