Technical and economic feasibility under uncertainty for methane dry reforming of coke oven gas as simultaneous H2 production and CO2 utilization

Boreum Lee, Hyunwoo Kim, Hyunjun Lee, Manhee Byun, Wangyun Won and Hankwon Lim

Renewable and Sustainable Energy Reviews, 2020, vol. 133, issue C

Abstract: The ultimate goal of this work is technical and economic feasibility analysis of a methane dry reforming (MDR) using a coke oven gas (COG) for a H2 production capability of 700 m3 h−1 because this technology is the promising alternative approach to H2 production as well as CO2 utilization. From process simulation works, process flow diagram is created for MDR using COG and validated by performance results from the previously reported literature. With a process flow diagram to be confirmed via model validation, the best reaction temperature of 1073 K is observed in terms of methane conversion. Based on process simulation results, economic analysis is performed. Furthermore, case studies focusing on an operating expense are conducted to consider various aspects of a CO2 price and confirm the effect of CO2 price on unit H2 production cost. Respective H2 production costs of 3.27, 2.71, and 2.38 $ kgH2−1 for a case 1 (reference), a case 2 (case 1 ​+ ​CO2 absorption), and a case 3 (case 2 ​+ ​CO2 from a blast furnace) are obtained. In addition, uncertainty analysis is performed to suggest the possible H2 production cost range for each case by considering the uncertainty of CO2 price fluctuation. Consequently, it is expected that a MDR using a COG is feasible for a H2 production as well as CO2 utilization technology compared to the current by-product H2 cost if carbon cap-and-trade system is activated.

Keywords: Methane dry reforming; H2 production; Process simulation; Economic analysis; CO2 utilization; Uncertainty analysis (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (7)

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DOI: 10.1016/j.rser.2020.110056

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