气候变化领域集成服务门户(CCPortal): Renewable-integrated flexible carbon capture: A synergistic path forward to clean energy future

CCPortal

DOI	10.1039/d0ee03946b
	Renewable-integrated flexible carbon capture: A synergistic path forward to clean energy future
	Zantye M.S.; Arora A.; Hasan M.M.F.
发表日期	2021
ISSN	17545692
起始页码	3986
结束页码	4008
卷号	14 期号:7
英文摘要	To decarbonize electricity grids, CO2 capture and renewable wind/solar are two promising pathways. However, the intermittency of these variable renewable sources and the high energy requirement of carbon capture restrict their widespread deployment. These challenges are traditionally addressed independently at the grid-level, leading to conservative costs and limited operational flexibility for both systems. Here, we examine the synergistic integration of renewables and flexible carbon capture with individual fossil power plants. Renewables provide clean energy for carbon capture, while flexible carbon capture acts as a form of energy storage to counter renewable intermittency. To assess whether the benefits obtained from integration outweigh the capital cost under spatiotemporal variability of electricity markets and renewable energy, we develop a mathematical programming-based optimization framework. We decouple the design and operational decisions in a two-stage optimization strategy to efficiently solve the large-scale problem. When applied to a nationwide case study on coal plants across the US, we observe that, for futuristic carbon tax and renewable cost scenarios, it is profitable to invest in solar-assisted carbon capture for nearly one-third of the coal plants. It reduces carbon capture cost by 8.9%, and accommodates solar intermittency while avoiding the capital cost of an equivalent battery, which is 4.4 times the solar farm cost. Furthermore, the levelized cost of electricity will be less than that of new natural gas plants with overall emission reduction between 87.5 and 91%. The integrated system thereby provides a cost-effective and sustainable measure to reduce CO2 emissions and improve the operational flexibility of existing fossil-based systems for accelerating the clean energy transition of the global energy sector. © The Royal Society of Chemistry.
英文关键词	Carbon capture; Carbon dioxide; Cost effectiveness; Electric energy storage; Emission control; Energy policy; Fossil fuel power plants; Fossil fuels; Gas plants; Mathematical programming; Microgrids; Natural gasoline plants; High energy requirements; Levelized cost of electricities; Operational decisions; Operational flexibility; Optimization framework; Spatiotemporal variability; Synergistic integration; Two stage optimizations; Cost reduction; alternative energy; carbon sequestration; cleaner production; emission control; future prospect; pollution tax; power plant; profitability; United States
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190619
作者单位	Artie McFerrin Department of Chemical Engineering, Texas AandM University, College Station, TX 77843-3122, United States
推荐引用方式 GB/T 7714	Zantye M.S.,Arora A.,Hasan M.M.F.. Renewable-integrated flexible carbon capture: A synergistic path forward to clean energy future[J],2021,14(7).
APA	Zantye M.S.,Arora A.,&Hasan M.M.F..(2021).Renewable-integrated flexible carbon capture: A synergistic path forward to clean energy future.Energy & Environmental Science,14(7).
MLA	Zantye M.S.,et al."Renewable-integrated flexible carbon capture: A synergistic path forward to clean energy future".Energy & Environmental Science 14.7(2021).