Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 44, Issue 28, Pages 14445-14455Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2019.03.274
Keywords
Ammonia; Aspen HYSYS simulation; Fuel cell vehicle; Hydrogen carrier; Technoeconomic analysis
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Ammonia (NH3) has been proposed as a hydrogen (H-2) carrier for energy services in the carbon-constrained future. This paper presents a technoeconomic feasibility study of using NH3 as H-2 carrier for fuel cell vehicles (FCVs) applications. Two cases with different scales of anticipated operations: (1) centralised installation (1000 tonnes day(-)(1)) and (2) distributed refuelling station (500 kg day(-1)), were considered. Aspen HYSYS v8.6 was utilised to simulate the processes. The H-2 production cost, internal rate of return, payback period and net present value were examined and compared. The results indicate the centralised H-2 production is both technically and economically feasible while distributed H-2 production, falling foul of economy of scale, is not economically viable. The overall H-2 production cost of the centralised H-2 production can reach as low as USD 5.50 kg(-1) H-2 accounting for capital expenditure, operating expenses, and decommissioning costs. The sensitivity analysis shown that the overall H-2 production cost is highly sensitive to NH3 price and moderately affected by utility price and various corporate tax rates considered. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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