期刊
APPLIED THERMAL ENGINEERING
卷 105, 期 -, 页码 56-64出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2016.05.149
关键词
Integrated steel mill; Carbon Capture and Storage (CCS); Post-combustion CO2 capture; Gas-liquid absorption; Calcium looping; Carbon capture investment costs
资金
- Romanian National Authority for Scientific Research, CNCS - UEFISCDI [PN-II-ID-PCE-2011-3-0028]
Reducing CO2 emissions from energy sector and other fossil fuel-intensive industrial applications is of main importance today. The iron and steel industry is one of the largest industrial sources of CO2 (about 6% of total CO2 emissions). Two post-combustion CO2 capture methods based on reactive gas-liquid and gas-solid systems are evaluated to be used in an integrated steel mill in conjunction with the plant sub-systems with the highest CO2 emissions e.g., captive power plant, hot stoves, coke ovens, lime kilns, etc. The gas-liquid absorption using chemical solvents (e.g., alkanolamines) and Calcium Looping (CaL) are assessed. The carbon capture rate is set to be at least 90%. The paper evaluates a conventional size of integrated steel mill emphasizing the energy integration aspects and the influence of various carbon capture options on the overall steel mill performances. The evaluated designs (captive power plants and carbon capture units) were modelled and simulated, the results being used to assess the overall indicators. For comparison reason, various captive power plant configurations of integrated steel mill without carbon capture were also considered. The assessments show that CaL system has significant advantages compared not only to benchmark cases without capture but also to the gas-liquid absorption cases. (C) 2016 Elsevier Ltd. All rights reserved.
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