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The improved CO2 capture system with heat recovery based on absorption heat transformer and flash evaporator |
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| Affiliation: | 1. College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China;2. College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, Shandong Province, China;3. Shengli Engineering & Consulting Co. Ltd., Shengli Oilfield, Dongying 257026, Shandong Province, China;1. Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC), Melbourne, Australia;2. Monash University, Clayton, Melbourne, Australia;1. School of Engineering, The University of Hull, Hull HU6 7RX, United Kingdom;2. State Key Laboratory of Chemical Engineering, Tsinghua University, Beijing 100084, China;1. Research Center for Energy Resources and Consumption (CIRCE), Campus Río Ebro, Mariano Esquillor Gómez 15, 50018 Zaragoza, Spain;2. Universidad de Valladolid, Campus Universitario Duques de Soria, Escuela Universitaria de Ingenierías Agrarias, 42004 Soria, Spain;3. Escuela de Ingeniería y Arquitectura, Departamento de Ingeniería Mecánica, Universidad de Zaragoza, Campus Río Ebro, María de Luna 3, 50018, Zaragoza, Spain |
| Abstract: | Absorption heat transformer (AHT) and flash evaporator (FE) are used to reduce the heat consumption of CO2 capture processes and an AHT–FE-aided capture system is proposed. Analyses are carried out to verify the effectiveness in reducing heat consumption. Compared with the base CO2 capture system of 3000 t/d CO2 capture capacity from a 660 MW coal-fired power unit, the AHT–FE-aided capture system reduces the heat consumption from 3.873 GJ/tCO2 to 3.772 GJ/tCO2, and the corresponding energy saving is 2.62%. The economic analysis shows that the annual profit would be 2.94 million RMB Yuan. The payback period of the AHT–FE-aided capture system is approximately 2.4 years. Therefore, the AHT–FE-aided capture system is both economically and technically feasible for improving the CO2 capture energy performance. |
| Keywords: | Heat recovery Absorption heat transformer Flash evaporator Heat consumption AB"} {"#name":"keyword" "$":{"id":"kwrd0040"} "$$":[{"#name":"text" "_":"absorber AHT"} {"#name":"keyword" "$":{"id":"kwrd0050"} "$$":[{"#name":"text" "_":"absorption heat transformer CO"} {"#name":"keyword" "$":{"id":"kwrd0060"} "$$":[{"#name":"text" "_":"condenser DE"} {"#name":"keyword" "$":{"id":"kwrd0070"} "$$":[{"#name":"text" "_":"desuperheater EV"} {"#name":"keyword" "$":{"id":"kwrd0080"} "$$":[{"#name":"text" "_":"evaporator FE"} {"#name":"keyword" "$":{"id":"kwrd0090"} "$$":[{"#name":"text" "_":"flash evaporator GE"} {"#name":"keyword" "$":{"id":"kwrd0100"} "$$":[{"#name":"text" "_":"generator MEA"} {"#name":"keyword" "$":{"id":"kwrd0110"} "$$":[{"#name":"text" "_":"mono ethanol amine P"} {"#name":"keyword" "$":{"id":"kwrd0120"} "$$":[{"#name":"text" "_":"pump USD"} {"#name":"keyword" "$":{"id":"kwrd0130"} "$$":[{"#name":"text" "_":"US dollar |
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