Low carbon consumption and cleaner aromatics production integrated coke oven gas: Process design and benefit analysis

IF 9 1区工程技术 Q1 ENERGY & FUELS

Energy Pub Date : 2025-03-08 DOI:10.1016/j.energy.2025.135516

Junqiang Zhang , Haifeng Lei , Guizhu Zhang , Junwen Wang , Yunfei Gao , Wei Zhang , Zhitong Zhao

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引用次数: 0

Abstract

The coal-to-aromatics(CTA) process has a significant negative environmental impact due to the problem of high carbon emissions caused by the low hydrogen to carbon ratio. The introduction of coke oven gas to partially replace coal is a highly feasible approach to improving the process. In this study, a coke oven gas integrated coal-to-aromatics process using methane dry\steam reforming technology was proposed and simulated. A comprehensive techno-economic analysis and life cycle assessment (LCA) were also carried out to highlight the advantages of the proposed process. Findings reveal that the techno-economic performance of the COG-CTA process demonstrated significant advantages over the traditional CTA process. The results showed that the energy efficiency, hydrogen utilization, carbon utilization, and production cost of the COG-CTA process were 74.81 %, 53.27 %, 84.70 %, and 1289.19 M$, respectively. Compared with the conventional CTA process, the energy efficiency increased by 18.66 %, hydrogen utilization increased by 32.08 %, carbon utilization increased by 26.49 %, and production cost decreased by 39.39 %. The LCA results showed a decrease in greenhouse gas (GHG) emissions from 9.29 to 4.09 kgCO₂·kg⁻¹, as well as a 82.48 % reduction in life cycle water consumption.

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来源期刊

Energy 工程技术-能源与燃料

CiteScore

15.30

自引率

14.40%

发文量

审稿时长

14.2 weeks

期刊介绍： Energy is a multidisciplinary, international journal that publishes research and analysis in the field of energy engineering. Our aim is to become a leading peer-reviewed platform and a trusted source of information for energy-related topics. The journal covers a range of areas including mechanical engineering, thermal sciences, and energy analysis. We are particularly interested in research on energy modelling, prediction, integrated energy systems, planning, and management. Additionally, we welcome papers on energy conservation, efficiency, biomass and bioenergy, renewable energy, electricity supply and demand, energy storage, buildings, and economic and policy issues. These topics should align with our broader multidisciplinary focus.