Optimal year-round operation for methane production from CO2 and water using wind and/or solar energy
Optimal year-round operation for methane production from CO2 and water using wind and/or solar energy
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DOI：
10.1016/j.jclepro.2014.05.077
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发表时间：
2014-10
影响因子：
11.1
通讯作者：
W. Davis;Mariano Martín
中科院分区：
文献类型：
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作者：
W. Davis;Mariano Martín
在这篇文章中，我们提出了从水电解和二氧化碳合成甲烷的最佳全年产量，并对太阳能光伏系统和风力涡轮机的使用进行了每月比较。这一过程首先从风力发电场或太阳能发电场获得电力，然后在电解槽系统中使用这些电力来生产氧气和氢气。氧气被提纯和储存，氢气在使用脱氧反应器净化后，与二氧化碳反应合成甲烷。考虑到风能或太阳能的可用性，我们对电厂的运行进行了为期一年的研究。风能或太阳能的使用取决于地区和可用于安装太阳能电池板或风力涡轮机的区域。欧洲和美国已经对这两种能源的使用进行了筛选，在大多数地区更倾向于使用太阳能。我们提供了一个在欧洲南部的卡迪兹湾进行研究的详细案例。在反转率(2.4亿欧元对3.63亿欧元)和生产成本(0.33亿欧元/立方米)方面，太阳能比风能便宜。0.49欧元/立方米)，而由于可再生能源的可获得性，每月的运营情况有所不同。
In this paper we present the optimal year round production of synthetic methane from water electrolysis and CO2comparing the use of solar PV systems and wind turbines on a monthly basis. The process starts obtaining electricity in a wind farm or a solar field, which is then used to produce oxygen and hydrogen in a system of electrolyzers. The oxygen is purified and stored, and the hydrogen, after being purified using a deoxygenating reactor, reacts with CO2to synthesize methane. We study the operation of the plant for a year considering the wind or solar availability. The use of wind or solar energy depends on the region and the area available for the installation of solar panels or wind turbines. Europe and the US have been screened for the use of both sources of energy, being solar preferable in most regions. We present a detailed case of study in the South of Europe, Gulf of Cádiz. Solar is cheaper than wind in terms of inversion (240 M€ vs. 363 M€) and production costs (0.33 €/m3vs. 0.49 €/m3), while the monthly operation differs due to the availability of renewable energy.