氢技术
制氢
能量载体
可再生能源
氢经济
氢气储存
电力转天然气
工艺工程
氢
氢燃料
储能
环境科学
计算机科学
化学
工程类
物理
功率(物理)
电气工程
热力学
物理化学
电解
有机化学
电解质
电极
作者
Furat Dawood,M. Anda,GM Shafiullah
标识
DOI:10.1016/j.ijhydene.2019.12.059
摘要
Power to hydrogen is a promising solution for storing variable Renewable Energy (RE) to achieve a 100% renewable and sustainable hydrogen economy. The hydrogen-based energy system (energy to hydrogen to energy) comprises four main stages; production, storage, safety and utilisation. The hydrogen-based energy system is presented as four corners (stages) of a square shaped integrated whole to demonstrate the interconnection and interdependency of these main stages. The hydrogen production pathway and specific technology selection are dependent on the type of energy and feedstock available as well as the end-use purity required. Hence, purification technologies are included in the production pathways for system integration, energy storage, utilisation or RE export. Hydrogen production pathways and associated technologies are reviewed in this paper for their interconnection and interdependence on the other corners of the hydrogen square. Despite hydrogen being zero-carbon-emission energy at the end-use point, it depends on the cleanness of the production pathway and the energy used to produce it. Thus, the guarantee of hydrogen origin is essential to consider hydrogen as clean energy. An innovative model is introduced as a hydrogen cleanness index coding for further investigation and development.
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