Which will be a promising route among integrated CO2 capture and conversion to valuable chemicals

IF 9.9 1区工程技术 Q1 ENERGY & FUELS

Energy Conversion and Management Pub Date : 2024-11-17 DOI:10.1016/j.enconman.2024.119269

Zhicheng Xie , Zhenfeng Tan , Kewen Wang , Bin Shao , Yuanming Zhu , Jingkun Li , Yuanhong Mao , Jun Hu

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引用次数: 0

Abstract

Facing challenges of industrial decarbonization, the integrated CO₂ capture and conversion (iCCC) technology attracts intensive attention but lacks a benchmark techno-economic analysis to figure out the most promising route among intricate processes and various energy sources. Herein, based on the design and simulation of four novel iCCC-X (X = Syngas, Methane, Methanol, Olefins) technologies for the same flue gas treatment, we propose a benchmark for techno-economic analysis by levelized criteria in terms of technical practicability, energy consumption, net CO₂ emission, and economic feasibility. The effects of technical processes, energy sources, prices of H₂ and products, carbon tax, and operating conditions on the mass and energy balance, and hence the techno-economic performances are comprehensively investigated. Among them, the iCCC-Methanol exhibits the best overall performance with a considerable economic profit of 84.5 $/t_CO2 when taking coal as the energy source; moreover, powered by wind, the lowest energy consumption of 4.2 GJ/t_CO2 and negative net CO₂ emission of −0.8 t_CO2/t_CO2 are achieved, demonstrating a promising route for future industrial decarbonizations.

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这将是综合捕获二氧化碳并将其转化为有价值化学品的一条有前途的途径

面对工业脱碳的挑战，二氧化碳捕集与转化（iCCC）集成技术受到广泛关注，但缺乏基准技术经济分析，无法从错综复杂的工艺和各种能源中找出最有前途的路线。在此，我们基于四种新型 iCCC-X （X = 合成气、甲烷、甲醇、烯烃）技术在同一烟气处理过程中的设计和模拟，从技术实用性、能源消耗、二氧化碳净排放量和经济可行性等方面，通过平准化标准提出了技术经济分析基准。我们全面研究了技术流程、能源、H2 和产品价格、碳税和运行条件对质量和能量平衡的影响，从而研究了技术经济性能。其中，以煤炭为能源时，iCCC-Methanol 表现出最佳的综合性能，可获得 84.5 美元/tCO2 的可观经济收益；此外，以风能为能源时，可获得 4.2 GJ/tCO2 的最低能耗和 -0.8 tCO2/tCO2 的负净 CO2 排放，为未来工业脱碳提供了一条前景广阔的途径。

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来源期刊

Energy Conversion and Management 工程技术-力学

CiteScore

19.00

自引率

11.50%

发文量

1304

审稿时长

17 days

期刊介绍： The journal Energy Conversion and Management provides a forum for publishing original contributions and comprehensive technical review articles of interdisciplinary and original research on all important energy topics. The topics considered include energy generation, utilization, conversion, storage, transmission, conservation, management and sustainability. These topics typically involve various types of energy such as mechanical, thermal, nuclear, chemical, electromagnetic, magnetic and electric. These energy types cover all known energy resources, including renewable resources (e.g., solar, bio, hydro, wind, geothermal and ocean energy), fossil fuels and nuclear resources.