Abstract
For decreasing greenhouse gas (mainly CO2) emissions, several approaches have been evaluated and reviewed for capturing CO2 in the utility industry, namely, carbon capture and storage technology (CCS), including precombustion capture, oxy-fuel combustion, and postcombustion capture. As a promising CCS technology, oxy-fuel combustion can be used to existing and new power plants. In oxy-combustion, a fuel is oxidized in a nearly nitrogen-free, diluted mixture such that the products consist mainly of CO2 and water vapor, enabling a relatively simple and inexpensive condensation separation process, and then, CO2 could be captured easily. There are two main approaches available to utilize the oxy-combustion technology, one of them is through the use of air separation units to separate O2, which will be used in the combustion process, and the other application is the ion transport membrane (ITM) reactor technology. This membrane separates oxygen from oxygen containing upstream (typically air). The oxygen transp...
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