Towards enhancing sustainable hydrogen production process via process-, energy-, and environmental-based multi-criteria optimization

IF 8.3 2区工程技术 Q1 CHEMISTRY, PHYSICAL

International Journal of Hydrogen Energy Pub Date : 2025-05-05 DOI:10.1016/j.ijhydene.2025.04.480

Swaprabha P. Patel, Hajer Al Sayadi, Ashish M. Gujarathi

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Abstract

Hydrogen is an important energy carrier, and its demand for clean and sustainable energy has driven the development of various production technologies. The NSGA-II algorithm is used for multi-objective optimization of the hydrogen production process via the methane pyrolysis technique. Four optimization cases are formulated, encompassing the four objectives of hydrogen production, methane conversion, energy-specific intensity (ESI), and carbon tax, with consideration of five decision variables. The maximum hydrogen production (9549.9 kg/h) is achieved in case 3, whereas the minimum carbon tax calculated value of 184.43 × 10⁴ $/year is obtained in case 2. The highest conversion rate of 90.2 % is observed in case 1, and the minimum ESI (6036.6 kJ/kg) is achieved in case 4. The net flow method is used for Pareto ranking analysis, and energy consumption, CO₂ emissions, and global warming potential are reported for selected points. This study sheds light on hydrogen production, considering conflicting objectives related to process, energy, and environment.

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通过基于工艺、能源和环境的多准则优化，加强可持续制氢过程

氢是一种重要的能源载体，其对清洁和可持续能源的需求推动了各种生产技术的发展。采用NSGA-II算法对甲烷热解制氢过程进行多目标优化。在考虑5个决策变量的情况下，制定了4个优化案例，包括制氢、甲烷转化、能源比强度（ESI）和碳税4个目标。在情况3中实现了最大产氢量（9549.9 kg/h），而在情况2中获得了最低碳税计算值184.43 × 104美元/年。在案例1中观察到最高的转化率为90.2%，在案例4中达到最小的ESI （6036.6 kJ/kg）。净流量法用于帕累托排名分析，并报告选定点的能源消耗，二氧化碳排放和全球变暖潜势。这项研究揭示了氢生产，考虑到与过程、能源和环境相关的冲突目标。

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来源期刊

International Journal of Hydrogen Energy 工程技术-环境科学

CiteScore

13.50

自引率

25.00%

发文量

3502

审稿时长

60 days

期刊介绍： The objective of the International Journal of Hydrogen Energy is to facilitate the exchange of new ideas, technological advancements, and research findings in the field of Hydrogen Energy among scientists and engineers worldwide. This journal showcases original research, both analytical and experimental, covering various aspects of Hydrogen Energy. These include production, storage, transmission, utilization, enabling technologies, environmental impact, economic considerations, and global perspectives on hydrogen and its carriers such as NH3, CH4, alcohols, etc. The utilization aspect encompasses various methods such as thermochemical (combustion), photochemical, electrochemical (fuel cells), and nuclear conversion of hydrogen, hydrogen isotopes, and hydrogen carriers into thermal, mechanical, and electrical energies. The applications of these energies can be found in transportation (including aerospace), industrial, commercial, and residential sectors.