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research-article

Techno-economic analysis of a carbon capture chemical looping combustion power plant

[+] Author and Article Information
Oghare V Ogidiama

Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE
oogidiama@masdar.ac.ae

Mohammad Abu Zahra

Department of Chemical and Environmental Engineering, Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE
mabuzahra@masdar.ac.ae

Tariq Shamim

Department of Mechanical and Materials Engineering, Masdar Institute of Science and Technology, P.O. Box 54224, Abu Dhabi, UAE; Mechanical Engineering Program, University of Michigan-Flint, Flint, MI 48502, USA
shamim@umich.edu

1Corresponding author.

ASME doi:10.1115/1.4040193 History: Received December 15, 2017; Revised May 02, 2018

Abstract

High energy penalty and cost are major obstacles in the wide spread use of CO2 capture techniques for reducing CO2 emissions. Chemical looping combustion (CLC) is an innovative means of achieving CO2 capture with less cost and low energy penalty. This paper conducts a detailed techno-economic analysis of a natural gas-fired CLC based power plant. The power plant capacity is 1000MWth gross power on a lower heating value (LHV) basis. The analysis was done using Aspen Plus. The cost analysis was done by considering the plant location to be in the United Arab Emirates. The plant performance was analyzed by using the cost of equipment, cost of electricity, payback period and the cost of capture. The performance of the CLC system was also compared with a conventional natural gas combined cycle plant of the same capacity integrated with a post combustion CO2 capture technology. The analysis shows that the CLC system had a plant efficiency of 55.6%, electricity cost of 5.5 cents/kWh, payback time of 3.77 years and the CO2 capture cost of $27.5/ton. In comparison, a similar NGCC power plant with CO2 capture had an efficiency of 50.6%, cost of electricity of 6.1 cents/kWh, payback period of 4.57 years and the capture cost of $42.9/ton. This analysis shows the economic advantage of the CLC integrated power plants.

Copyright (c) 2018 by ASME
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