气候变化领域集成服务门户(CCPortal): What is needed to deliver carbon-neutral heat using hydrogen and CCS?

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DOI	10.1039/d0ee02016h
	What is needed to deliver carbon-neutral heat using hydrogen and CCS?
	Sunny N.; Mac Dowell N.; Shah N.
发表日期	2020
ISSN	17545692
起始页码	4204
结束页码	4224
卷号	13 期号:11
英文摘要	In comparison with the power sector, large scale decarbonisation of heat has received relatively little attention at the infrastructural scale despite its importance in the global CO2 emissions landscape. In this study we focus on the regional transition of a heating sector from natural gas-based infrastructure to H2 using mathematical optimisation. A discrete spatio-temporal description of the geographical region of Great Britain was used in addition to a detailed description of all network elements for illustrating the key factors in the design of nation-wide H2 and CO2 infrastructure. We have found that the synergistic deployment of H2 production technologies such as autothermal reforming of methane, and biomass gasification with CO2 abatement technologies such as carbon capture and storage (CCS) are critical in achieving cost-effective decarbonisation. We show that both large scale underground H2 storage and water electrolysis provide resilience and flexibility to the heating system, competing on cost and deployment rates. The optimal regions for siting H2 production infrastructure are characterised by proximity to: (1) underground H2 storage, (2) high demands for H2, (3) geological storage for CO2. Furthermore, cost-effective transitions based on a methane reforming pathway may necessitate regional expansions in the supply of natural gas with profound implications for security of supply in nations that are already highly reliant, potentially creating an infrastructure lock-in during the near term. We found that the total system cost, comprising both investment and operational elements, is mostly influenced by the natural gas price, followed by biomass price and CapEx of underground caverns. Under a hybrid Regulated Asset Base (RAB) commercial framework, with private enterprises delivering production infrastructure, the total cost of heat supply over the infrastructure lifetime is estimated as 5.2-8.6 pence per kW h. Due to the higher cost relative to natural gas, a Contract for Difference payment between £20 per MW h and £53 per MW h will be necessary for H2-derived heat to be competitive in the market. © The Royal Society of Chemistry.
英文关键词	Carbon capture; Carbon dioxide; Cost effectiveness; Decarbonization; Gas industry; Hydrogen production; Investments; Methane; Natural gas; Optimization; Autothermal reforming of methane; Biomass Gasification; Carbon capture and storages (CCS); Contract for differences; Mathematical optimisation; Regional expansion; Spatio-temporal description; Underground cavern; Costs; biomass; carbon dioxide; carbon emission; carbon sequestration; electrokinesis; geographical region; hydrogen; natural gas; United Kingdom
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/189489
作者单位	Centre for Process Systems Engineering, Imperial College London, Exhibition Road, London, SW7 2AZ, United Kingdom; Department of Chemical Engineering, Imperial College London, Exhibition Road, London, SW7 2AZ, United Kingdom; Centre for Environmental Policy, Imperial College London, Exhibition Road, London, SW7 1NA, United Kingdom
推荐引用方式 GB/T 7714	Sunny N.,Mac Dowell N.,Shah N.. What is needed to deliver carbon-neutral heat using hydrogen and CCS?[J],2020,13(11).
APA	Sunny N.,Mac Dowell N.,&Shah N..(2020).What is needed to deliver carbon-neutral heat using hydrogen and CCS?.Energy & Environmental Science,13(11).
MLA	Sunny N.,et al."What is needed to deliver carbon-neutral heat using hydrogen and CCS?".Energy & Environmental Science 13.11(2020).