气候变化领域集成服务门户(CCPortal): Plant-to-planet analysis of CO2-based methanol processes

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DOI	10.1039/c9ee01673b
	Plant-to-planet analysis of CO2-based methanol processes
	González-Garay A.; Frei M.S.; Al-Qahtani A.; Mondelli C.; Guillén-Gosálbez G.; Pérez-Ramírez J.
发表日期	2019
ISSN	1754-5692
起始页码	3425
结束页码	3436
卷号	12 期号:12
英文摘要	A critical assessment of methanol production from carbon dioxide and renewable hydrogen is here presented, gathering an insightful picture of its wide sustainability and establishing a hierarchy of factors dictating its performance. Process simulation and life-cycle analysis indicate that green methanol is at present economically unattractive, i.e., it has a 1.3-2.6-fold higher cost compared to the current fossil-based analogue, even when considering indirect environmental costs via monetisation of impacts and a potential CO2 tax of at least 430.5 USD tCO2-eq-1. This is mainly due to the high price of hydrogen (water electrolysis powered with solar, wind, and nuclear energy, or biomass gasification, up to 73% of the total cost), which shall drop significantly due to reductions in electricity costs and technological advances. The scenario radically changes when quantifying for the first time the absolute sustainability of this carbon capture and utilisation route through eight planetary boundaries, revealing that CO2-based methanol would contribute to operating safely within critical ecological limits of the Earth linked to carbon emissions, currently transgressed by the conventional process. Our plant-to-planet assessment embraces the full potential role of emerging processes in sustainable development, which should prevail over purely economic arguments, subject to market fluctuations and technological advances. © 2019 The Royal Society of Chemistry.
语种	英语
scopus关键词	Carbon dioxide; Costs; Ecology; Life cycle; Methanol; Solar power generation; Sustainable development; Biomass Gasification; Critical assessment; Environmental costs; Life cycle analysis; Market fluctuations; Process simulations; Renewable hydrogens; Technological advances; Cost benefit analysis; alternative energy; carbon dioxide; carbon emission; environmental economics; hydrogen; life cycle analysis; methanol; performance assessment; sustainability; sustainable development
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162473
作者单位	Centre for Process Systems Engineering, Imperial College London, London, SW7 2AZ, United Kingdom; Department of Chemistry and Applied Biosciences, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1, Zurich, 8093, Switzerland
推荐引用方式 GB/T 7714	González-Garay A.,Frei M.S.,Al-Qahtani A.,et al. Plant-to-planet analysis of CO2-based methanol processes[J],2019,12(12).
APA	González-Garay A.,Frei M.S.,Al-Qahtani A.,Mondelli C.,Guillén-Gosálbez G.,&Pérez-Ramírez J..(2019).Plant-to-planet analysis of CO2-based methanol processes.Energy and Environmental Science,12(12).
MLA	González-Garay A.,et al."Plant-to-planet analysis of CO2-based methanol processes".Energy and Environmental Science 12.12(2019).