Energy and economic assessment of an industrial plant for the hydrogen production by water-splitting through the sulfur-iodine thermochemical cycle powered by concentrated solar energy

被引:61
作者
Liberatore, Raffaele [1 ]
Lanchi, Michela [1 ]
Giaconia, Alberto [1 ]
Tarquini, Pietro [1 ]
机构
[1] ENEA, Casaccia Res Ctr, I-00123 Rome, Italy
关键词
Hydrogen; Sulfur-iodine process; H2O; Solar energy; DECOMPOSITION; EFFICIENCY; DESIGN; SYSTEM; ACID;
D O I
10.1016/j.ijhydene.2012.03.088
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The faster and faster global growth of energy consumption generates serious problems on its supply and about the pollution that may result. Through the use of thermochemical cycles it is possible to use renewable energy to produce hydrogen from water, with the dual purpose of having an unlimited source of energy without producing greenhouse gases. This paper provides an energy assessment and a preliminary design of an industrial plant for the production of 100 tons/day of hydrogen by sulfur-iodine thermochemical cycle. Afterwards, an economic analysis is performed to assess the hydrogen production cost, with the assumption to power the process by solar energy. For this purpose, a double solar facility is sized: a parabolic trough plant, for the mean temperature duties, and a central receiver tower one for the higher temperature duties. The efficiency of the thermochemical cycle by itself is about 34%. If this value is associated with the electrical energy production, including the efficiency of the solar plants, the total heat-to-hydrogen efficiency of 21% is obtained, with a hydrogen production cost of about 8.3 (sic)/kg. Copyright (C) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:9550 / 9565
页数:16
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