摘要
氢能是目前国家大力发展的清洁能源,在氢气制备工艺中,煤制氢、天然气制氢等化石能源制氢存在高碳排放问题,同时在新能源的应用中存在能量波动以及周期性问题,因此有必要对氢气的制备技术以及新能源的应用进行梳理。基于此,全面调研了电解水制氢的工艺技术和新能源的应用情况,重点分析了太阳能和电解水制氢系统耦合的应用发展现状,提出3种不同电解水制氢技术与新能源耦合的方法,可以有效解决新能源的波动性问题,同时提高新能源的利用率,与传统企业结合可以极大降低碳排放量,提升了新能源的有效利用率。进行了AWE技术和PEM技术经济性对比,结果表明在光能利用率较低的情况下,AWE的LCOH成本达到每千克H_(2) 6.9美元,PEM的LCOH成本为每千克H_(2 )5.5美元,即PEM系统相比于AWE系统对新能源的波动性有更好的适用性,更适用于电解水耦合制氢,提升利用效率。
Hydrogen energy is a clean energy that is vigorously developed in China at present.In the hydrogen preparation process,there are high carbon emission problems in hydrogen production from fossil energy such as coal hydrogen production and natural gas hydrogen production,and there are energy fluctuation and periodicity problems in the application of new energy.Therefore,it is necessary to sort out the hydrogen preparation technology and the application of new energy.In this paper,the technology of electrolytic water and new energy utilization were summarized,focusing on the application of the coupling of solar energy and hydrogen production from water electrolysis.Three methods of coupling different electrolytic water hydrogen production technology with new energy were proposed,which can effectively solve the volatility problems of new energy,increase the utilization rate of new energy,and combine with traditional enterprises to control carbon emissions.Finally,the economic comparison between AWE and PEM was carried out.The results showed that under the condition of low light energy utilization,the LCOH cost of AWE was 6.9 dollars per producing 1 kg H_(2),and the LCOH cost of PEM was 5.5 dollars per producing 1kg H_(2),that was,PEM system had better applicability to the fluctuation of new energy compared with AWE system.
作者
李珍妮
LI Zhen-ni(Hualu Engineering Technology Co.,Ltd.,Xi'an shaanxi 7100651,China)
出处
《当代化工》
CAS
2023年第6期1396-1400,共5页
Contemporary Chemical Industry
基金
国家自然科学基金项目(项目编号:51174046)。
关键词
电解水
制氢工艺
新能源
耦合
经济性分析
Water electrolysis
Hydrogen production process
New energy
Coupling process
Economic analysis
