Low-carbon transportation pathways through power-to-gas

Azadeh Maroufmashat, M. Fowler
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引用次数: 8

Abstract

In this paper, different low-carbon pathways of power-to-gas for sustainable transportation are compared from technical, economical, and environmental point of view. Surplus power in Ontario can be converted into hydrogen or synthetic methane for hydrogen fuel cell and natural gas vehicles. The efficiency of power to hydrogen are estimated to be around 50–80% without consideration of underground storage and 36–67% considering underground storage. In long-term, their efficiencies will be increased to 54–82% and 43–66%, respectively. The efficiencies of power to synthetic methane is less than its alternatives and it is in the range of 27–57%. In terms of economic analysis, the cost of power to hydrogen pathways are less than the others, however, natural gas cars can be more in the road than hydrogen fuel cell vehicles, due to the refueling station infrastructure accessibility. In terms of environmental consideration, the GHG emission of power to natural gas are much lower than their alternatives due to the CO2 capturing happens in the methanation reactor.
通过电转气的低碳交通途径
本文从技术、经济和环境的角度比较了不同的电制气可持续交通的低碳途径。安大略省的剩余电力可以转化为氢气或合成甲烷,用于氢燃料电池和天然气汽车。在不考虑地下储存的情况下,电能制氢的效率估计在50-80%左右,考虑地下储存的效率估计在36-67%左右。长期来看,它们的效率将分别提高到54-82%和43-66%。合成甲烷的发电效率低于其替代品,在27-57%的范围内。从经济角度分析,氢燃料汽车的电力成本比其他燃料汽车低,但由于加气站基础设施的可达性,天然气汽车可以比氢燃料电池汽车更多地行驶在路上。从环境方面考虑,由于甲烷化反应器中发生了CO2捕集,因此发电制气的温室气体排放量远低于替代发电制气。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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