In addition, the capital cost and the complexity of the plant will increase. We can reduce heat requirement by heat integration, but since the inlet temperature to the compressors become higher, the compression efficiency will decrease and compression work will increase. The effect of heat integration between the compression section and the stripper is also considered. However, this configuration increases the investment cost and plant complexity significantly. The split-stream configuration with cooling of semi-lean amine is the second best. We cannot identify one single configuration to be the optimum always for all situations, as it depends on many parameters like energy and material costs, interest. (2009) and Sinnott and Towler (2009) are used. In addition, the plant complexity does not increase very much compared to the benchmark. The process simulations are made with the use of Unisim Design and ProTreat, while for the cost calculations, data from Turton et al. With the assumption and estimated parameters in this study we find that vapor recompression configuration is the best configuration because it has the lowest total capture cost and CO 2 avoided cost. We cannot identify one single configuration to be the optimum always for all situations, as it depends on many parameters like energy and material costs, interest rate, plant complexity, etc.
The process simulations are made with the use of Unisim Design and ProTreat, while for the cost calculations, data from Turton et al. In this study, five different configurations for aqueous absorption/stripping have been compared with regards to capital investment and energy consumption.
Among the different technologies, aqueous amine absorption/stripping is a promising one. Capturing and storing the greenhouse gas carbon dioxide produced by power plants and chemical production plants before it is emitted to the atmosphere will play a major role in mitigation climate change.
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