对酸性气体焚化炉进行性能改造,以减少对大气污染物的影响:能源管理、HAZOP 和 LCA 分析

IF 3.8 Q2 ENVIRONMENTAL SCIENCES
Mohammad Kazem Shahbazinasab , Mohammad Reza Rahimpour , Payam Setoodeh , Hamed Peyrovedin , Nargess Kargari
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引用次数: 0

摘要

在当今的工业领域,能源管理、工艺改造以及降低大气污染物浓度和安全风险已成为重中之重。之所以如此重视,是因为需要解决环境问题、经济效益以及全球能源和气候变化危机。在天然气精炼厂中,焚化炉被广泛用于将致命的、污染环境的酸性气体转化为危害较小的气体。因此,提高焚化炉的性能可对环境、经济和能源方面产生重大影响。根据国内天然气处理厂的能源管理研究结果,酸性气体焚烧装置被确定为能源使用大户。因此,基于从环境和能源角度对该焚化炉性能的影响,在这项工作中优先对上述装置进行改造。为此,使用 Promax 仿真对焚化炉性能进行了评估,并采用了危险与可操作性(HAZOP)分析来确定潜在的危险。模拟结果表明,酸性气体的停留时间为 0.81 秒,长于最初设计的 0.6 秒。这表明拆除风门是可行的。拆除风门可缩短停留时间并降低焚烧炉温度,尤其是在启动期间。因此,在 HAZOP 研究中,温度被视为关键词,并提出了一系列建议,以消除或减轻系统改造的风险。此外,基于 ISO 50001:2018 标准的能源管理所取得的辅助结果证实了能源效率和燃料消耗的改善,这对经济和环境产生了积极影响。此外,研究还采用了生命周期评估(LCA)方法,使用 SimaPro 软件 9.5.0.1 和 CML 基准法(莱顿 Milieukunde 中心)进行环境影响评估。结果表明,在十个环境影响类别中,修改后的项目对环境的影响比原来大大减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Performance modification of an acid gas incinerator to reduce atmospheric pollutants impact: Energy management, HAZOP and LCA analyses

In today's industrial landscape, energy management, process modification, and reduction of atmospheric concentrations of pollutants and safety risks have become paramount. This focus is driven by the need to address environmental concerns, economic efficiency, and the global energy and climate change crisis. In gas refineries, incinerators are widely used to convert deadly and environmentally polluting acid gases into less hazardous gases. Therefore, improving incinerator performance can significantly impact environmental, economic, and energy aspects. According to the results of an energy management study at the domestic gas processing plant, the acid gas incineration unit was identified as a significant energy use. Therefore, based on the effects of the performance of this incinerator from environmental and energy points of view, the mentioned unit was prioritized for modification in this work. For this purpose, incinerator performance was assessed using Promax simulation, and Hazard and Operability (HAZOP) analysis was employed to identify potential hazards. The simulations revealed that acid gas residence time was 0.81s, longer than the 0.6s initial design with the damper in place. This suggests damper removal is feasible. Removing the damper reduces residence time and lowers incinerator temperature, especially during startup. Therefore, temperature was considered as the keyword in the HAZOP study, and a number of recommendations were proposed to eliminate or mitigate the risks of system modification. Furthermore, the assistance of results obtained from energy management based on ISO 50001:2018 standards confirm improvements in energy efficiency and fuel consumption, which have positive economic and environmental impacts. Moreover, the study employs a Life Cycle Assessment (LCA) approach using SimaPro Software 9.5.0.1 and the CML-baseline method (Centrum voor Milieukunde Leiden) for environmental impact assessment. The results reveal that, across ten environmental impact categories, the modified project exhibits significantly reduced environmental impacts compared to its original state.

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来源期刊
Atmospheric Environment: X
Atmospheric Environment: X Environmental Science-Environmental Science (all)
CiteScore
8.00
自引率
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发文量
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