Techno-Economic Feasibility Analysis of Post-Combustion Carbon Capture in an NGCC Power Plant in Uzbekistan

Azizbek Kamolov (), Zafar Turakulov, Patrik Furda, Miroslav Variny (), Adham Norkobilov and Marcos Fallanza
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Azizbek Kamolov: Department of IT, Automation, and Control, Tashkent Institute of Chemical Technology, Navoi 32, Tashkent 100011, Uzbekistan
Zafar Turakulov: Department of IT, Automation, and Control, Tashkent Institute of Chemical Technology, Navoi 32, Tashkent 100011, Uzbekistan
Patrik Furda: Department of Chemical and Biochemical Engineering, Slovak University of Technology in Bratislava, Radlinského 9, 81237 Bratislava, Slovakia
Miroslav Variny: Department of Chemical and Biochemical Engineering, Slovak University of Technology in Bratislava, Radlinského 9, 81237 Bratislava, Slovakia
Adham Norkobilov: Department of Engineering Technologies, Shahrisabz Branch of Tashkent Institute of Chemical Technology, Shahrisabz 181306, Uzbekistan
Marcos Fallanza: Department of Chemical and Biomolecular Engineering, University of Cantabria, Avenida de los Castros s/n, 39005 Santander, Spain

Clean Technol., 2024, vol. 6, issue 4, 1-32

Abstract: As natural gas-fired combined cycle (NGCC) power plants continue to constitute a crucial part of the global energy landscape, their carbon dioxide (CO 2 ) emissions pose a significant challenge to climate goals. This paper evaluates the feasibility of implementing post-combustion carbon capture, storage, and utilization (CCSU) technologies in NGCC power plants for end-of-pipe decarbonization in Uzbekistan. This study simulates and models a 450 MW NGCC power plant block, a first-generation, technically proven solvent—MEA-based CO 2 absorption plant—and CO 2 compression and pipeline transportation to nearby oil reservoirs to evaluate the technical, economic, and environmental aspects of CCSU integration. Parametric sensitivity analysis is employed to minimize energy consumption in the regeneration process. The economic analysis evaluates the levelized cost of electricity (LCOE) on the basis of capital expenses (CAPEX) and operational expenses (OPEX). The results indicate that CCSU integration can significantly reduce CO 2 emissions by more than 1.05 million tonnes annually at a 90% capture rate, although it impacts plant efficiency, which decreases from 55.8% to 46.8% because of the significant amount of low-pressure steam extraction for solvent regeneration at 3.97 GJ/tonne CO 2 and multi-stage CO 2 compression for pipeline transportation and subsequent storage. Moreover, the CO 2 capture, compression, and transportation costs are almost 61 USD per tonne, with an equivalent LCOE increase of approximately 45% from the base case. This paper concludes that while CCSU integration offers a promising path for the decarbonization of NGCC plants in Uzbekistan in the near- and mid-term, its implementation requires massive investments due to the large scale of these plants.

Keywords: techno-economic analysis; NGCC power plant; CO 2 capture; absorption; monoethanolamine; sensitivity analysis; Uzbekistan (search for similar items in EconPapers)
JEL-codes: Q2 Q3 Q4 Q5 (search for similar items in EconPapers)
Date: 2024
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