From Methanol to Power: Energy, Economic and Life-cycle Assessments of Several Pathways

IF 9.7 1区 环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL Journal of Cleaner Production Pub Date : 2024-12-16 DOI:10.1016/j.jclepro.2024.144501
Ning Zhao, Jinyu Yang, Tianchao Ai, Jiangjiang Wang
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Abstract

Using methanol as a fuel for power generation has garnered significant attention due to the increasing demand for renewable energy. This study compares the energy, economic, and environmental benefits of five potential methanol-to-power (M2P) routes: direct methanol power generation and four electrochemical/thermochemical power generation routes coupled with the methanol pretreatment process. Energy conversion and distribution for each M2P process are analyzed, focusing on key technical and economic indicators, and competitive targets are established to promote the market adoption of M2P pathways. The results indicate that none of the potential M2P routes are competitive under current technical and economic conditions, with energy efficiency ranging from 16.65% to 44.28%, underscoring the need for further research and development. A projected 40% reduction in methanol costs may render routes utilizing MSR and ATRM fuel pretreatment technologies economically beneficial, with the levelized cost of electricity for all pathways aligning with the current renewable energy generation costs. Life cycle analysis exposes that carbon emissions from methanol utilization are more significant than those stages, while the combining of the latter three M2P pathways with emerging renewable methanol synthesis technologies minimizes environmental impact. Despite the uncertainties and economic risks associated with methanol-to-electricity conversion, exploration of potential application scenarios of various pathways establishes a foundation for future advancements.
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从甲醇到电力:几种途径的能源、经济和生命周期评估
由于对可再生能源的需求日益增长,将甲醇用作发电燃料已引起人们的极大关注。本研究比较了五种潜在的甲醇发电(M2P)路线的能源、经济和环境效益:直接甲醇发电和与甲醇预处理工艺相结合的四种电化学/热化学发电路线。对每种 M2P 工艺的能量转换和分配进行了分析,重点关注关键技术和经济指标,并制定了竞争目标,以促进市场采用 M2P 途径。结果表明,在目前的技术和经济条件下,没有一种潜在的 M2P 途径具有竞争力,能源效率从 16.65% 到 44.28% 不等,这突出表明了进一步研发的必要性。预计甲醇成本将降低 40%,这可能会使利用 MSR 和 ATRM 燃料预处理技术的路线获得经济效益,所有路线的平准化电力成本都将与当前的可再生能源发电成本保持一致。生命周期分析表明,甲醇利用过程中的碳排放量比这些阶段的排放量更大,而后三种 M2P 途径与新兴的可再生甲醇合成技术相结合,可最大限度地减少对环境的影响。尽管甲醇转化为电能存在不确定性和经济风险,但对各种途径潜在应用方案的探索为未来的进步奠定了基础。
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来源期刊
Journal of Cleaner Production
Journal of Cleaner Production 环境科学-工程:环境
CiteScore
20.40
自引率
9.00%
发文量
4720
审稿时长
111 days
期刊介绍: The Journal of Cleaner Production is an international, transdisciplinary journal that addresses and discusses theoretical and practical Cleaner Production, Environmental, and Sustainability issues. It aims to help societies become more sustainable by focusing on the concept of 'Cleaner Production', which aims at preventing waste production and increasing efficiencies in energy, water, resources, and human capital use. The journal serves as a platform for corporations, governments, education institutions, regions, and societies to engage in discussions and research related to Cleaner Production, environmental, and sustainability practices.
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