亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Techno-economic modelling of a Power-to-Gas system based on SOEC electrolysis and CO2 methanation in a RES-based electric grid

电力转天然气 替代天然气 可再生能源 工艺工程 天然气 甲烷化 储能 电力 化石燃料 按来源划分的电力成本 环境科学 工程类 资本成本 电解 发电 废物管理 环境工程 甲烷 电气工程 功率(物理) 化学 合成气 物理 物理化学 电解质 有机化学 量子力学 电极
作者
Fabio Salomone,Emanuele Giglio,Domenico Ferrero,Massimo Santarelli,Raffaele Pirone,Samir Bensaid
出处
期刊:Chemical Engineering Journal [Elsevier BV]
卷期号:377: 120233-120233 被引量:116
标识
DOI:10.1016/j.cej.2018.10.170
摘要

Renewable energy sources (RES) are growing rapidly as an alternative to fossil energy sources in order to disjoin the society from carbon sources. Wind and photovoltaic power generation is intermittent due to weather conditions. Therefore, remarkable centrality is given to the storage of the electric excess of production, and Power-to-Gas (P2G) systems seem to be one of the most promising technologies to achieve this purpose. In the case analysed in this research, a high temperature electrolyser based on solid oxide cells technology was considered, coupled to catalytic reactors for the hydrogenation of carbon dioxide into methane. The product is a synthetic natural gas (SNG) which could by directly injected into the natural gas distribution network. This work investigates the coupling between a completely RES-based electric profile in a future scenario and a P2G plant to perform a comprehensive technical, managemental and economic assessment of the system. A P2G model was built on MATLAB environment to examine the P2G plant behaviour when it was coupled with the RES-based intermittent electric profile. Firstly, the P2G plant arrangement has been discussed by varying the P2G plant capacity which has been coupled to the electric profile; the P2G capacity was then selected based on the levelized cost of product (LCOP). Secondly, the electrochemical storage has been introduced to perform a continuing operation also when excess of electricity is not available, thanks to the storage of electric energy. Finally, chemical storage tanks of hydrogen (feed for the methanation) and steam (feed for the electrolyser) were considered to reduce the number of shutdowns of the P2G plant. An assessment of the long-term gas storage in the gas distribution network was additionally performed. An optimal plant capacity with respect to the investigated scenario of local electric residual profile was sized, being equal to 7 MW, with a recovery equal to 70% of the total available electric energy from the grid. Moreover, the P2G system could be economically competitive, because the LCOP varies between 60.2 €/MWh and 224.9 €/MWh (LHV basis), which suits with current levelized natural gas prices. The overall efficiency of the plant reached around 77%, with a plant utilization factor of about 30%. The accumulators and the electrolyser are the most expensive technologies, and the LCOP strongly depends on their size (if the batteries are considered). For this scenario, the SNG yearly productivity reached a value of 18.5 GWh/y (LHV basis): in the hypothesis of using SNG to repower the electric grid (efficiency 45%), such a P2G plant could compensate the 29.6% of the amount of deficit energy, with a consequent reduction in CO2 associated emissions.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
HL完成签到,获得积分10
12秒前
12秒前
flyingpig应助wisdom采纳,获得10
24秒前
量子星尘发布了新的文献求助10
27秒前
57秒前
Sid完成签到,获得积分0
1分钟前
李li完成签到,获得积分20
1分钟前
论高等数学的无用性完成签到 ,获得积分10
1分钟前
搜集达人应助小梦采纳,获得10
1分钟前
李li发布了新的文献求助10
2分钟前
2分钟前
量子星尘发布了新的文献求助10
2分钟前
2分钟前
在水一方应助nsc采纳,获得10
2分钟前
2分钟前
judy007发布了新的文献求助10
2分钟前
2分钟前
nsc发布了新的文献求助10
2分钟前
2分钟前
3分钟前
JamesPei应助nsc采纳,获得10
3分钟前
3分钟前
3分钟前
3分钟前
3分钟前
3分钟前
量子星尘发布了新的文献求助10
3分钟前
小梦发布了新的文献求助10
3分钟前
3分钟前
就叫希望吧完成签到 ,获得积分10
3分钟前
3分钟前
大气山柏发布了新的文献求助10
3分钟前
深情安青应助小梦采纳,获得10
3分钟前
3分钟前
大气山柏完成签到,获得积分10
4分钟前
nsc发布了新的文献求助10
4分钟前
脑洞疼应助Rabbit采纳,获得10
4分钟前
4分钟前
67完成签到 ,获得积分10
4分钟前
4分钟前
高分求助中
The Mother of All Tableaux Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 2400
Ophthalmic Equipment Market by Devices(surgical: vitreorentinal,IOLs,OVDs,contact lens,RGP lens,backflush,diagnostic&monitoring:OCT,actorefractor,keratometer,tonometer,ophthalmoscpe,OVD), End User,Buying Criteria-Global Forecast to2029 2000
Optimal Transport: A Comprehensive Introduction to Modeling, Analysis, Simulation, Applications 800
Official Methods of Analysis of AOAC INTERNATIONAL 600
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 588
A Preliminary Study on Correlation Between Independent Components of Facial Thermal Images and Subjective Assessment of Chronic Stress 500
T/CIET 1202-2025 可吸收再生氧化纤维素止血材料 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3957044
求助须知:如何正确求助?哪些是违规求助? 3503067
关于积分的说明 11111230
捐赠科研通 3234118
什么是DOI,文献DOI怎么找? 1787727
邀请新用户注册赠送积分活动 870762
科研通“疑难数据库(出版商)”最低求助积分说明 802264