Optimization of compression ratio in closed-loop CO2 liquefaction process
- 88 Downloads
We suggest a systematic method for obtaining the optimal compression ratio in the multi-stage closed-loop compression process of carbon dioxide. Instead of adopting the compression ratio of 3 to 4 by convention, we propose a novel approach based on mathematical analysis and simulation. The mathematical analysis prescribes that the geometric mean is a better initial value than the existing empirical value in identifying the optimal compression ratio. In addition, the optimization problem considers the initial installation cost as well as the energy required for the operation. We find that it is best to use the fifth stage in the general closed-loop type carbon dioxide multi-stage compression process.
KeywordsCarbon Capture Closed-loop Compression Compression Ratio Multi-stage Compression Geometric Mean
Unable to display preview. Download preview PDF.
- 1.W. D. Seider, J. D. Seader, D. R. Lewin and S. Widagdo, Product and process design principles: Synthesis, analysis and design, Wiley, 3rd Ed. (2008).Google Scholar
- 12.J. Moore and M. G. Nored, ASME Turbo Expo: Power for Land, Sea, and Air, 7, 645 (2008).Google Scholar
- 13.M. Moshfeghian, Variation of Ideal Gas Heat Capacity Ratio with Temperature and Relative Density (Tip of the Month), John M. Campbell & Co., Norman, OK, U. S. A. (2013).Google Scholar
- 14.J. M. Douglas, Conceptual Design of Chemical Processes, McGraw-Hill (1988).Google Scholar
- 15.CEPCI June 2017 Issue, SCRIBD, https://doi.org/www.scribd.com/document/352561651/CEPCI-June2017-Issue, Accessed 11 Dec. 2017.