545666 Application of Chemical Looping in Fischer-Tropsch Gas-to-Liquids Processes: Performance and Economic Analysis

Monday, June 3, 2019: 5:42 PM
Republic ABC (Grand Hyatt San Antonio)
Vishnu Priya Ramakrishnan and Omar Basha, Chemical, Biological and Bio Engineering, North Carolina A&T State University, Greensboro, NC


The industry of Gas-to-Liquids (GTL) using Fischer-Tropsch (F-T) has always been subject to capricious market and economic factors, typically resulting in project cancellations and delays. This is primarily due to the capital intensive nature of the process, with announced costs reported to range from $18 - $22 billion, and anecdotal reports suggesting even higher cost overruns [1]. Recently, the integration of Chemical Looping with XTL processes has been proposed as a means to reduce the capital requirements, enhance the efficiency and reduce emissions from the process [2, 3]. Theoretically, the integration of Chemical Looping (CL) could potentially eliminate the air separation and the syngas units, which account for over 25% of the F-T GTL EPC cost breakdown [4], however no techno-economic assessment has yet to be performed for GTL applications. Therefore, this work will present detailed process simulations, lifecycle greenhouse gas emissions analyses and cost analysis in a comprehensive analytical framework for multiple alternative CL-GTL system configurations with the aim of quantifying the merit of the CL-GTL process. Moreover, systematic comparisons will be made to alternative GTL options in light of addressing techno-economic challenges.


[1] Biofuels and Emerging Technologies Team, "Gas-To-Liquid (GTL) Technology Assessment in support of AEO2013," Energy Information Administration (EIA)2013.

[2] O. M. Basha, L. Weng, Z. Men, W. Xu, and I. Morsi Badie, "NICE's Indirect Coal-to-Liquid Process for Producing Clean Transportation Fuels Using Fischer-Tropsch Synthesis," Front. Eng, vol. 3, pp. 362-376, 2016.

[3] O. Basha, M. and B. Morsi, I., "Techno-Economic Assessment of Different Tailgas Recycle Strategies for Coal Conversion via Fischer-Tropsch Slurry Technology," in International Energy and Raw Materials Energy Summit (INERMA), Istanbul, 2017.

[4] R. Zennaro, "Fischer–Tropsch Process Economics," in Greener Fischer-Tropsch Processes for Fuels and Feedstocks, ed: Wiley-VCH Verlag GmbH & Co. KGaA, 2013, pp. 149-169.

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