Gasification of heavy fuel oils: A thermochemical equilibrium approach

M. Vaezi; M. Passandideh-Fard; M. Moghiman; M. Charmchi

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Gasification of heavy fuel oils: A thermochemical equilibrium approach

机译：重油的气化：热化学平衡方法

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Combustion of heavy fuel oils is a major source of production of paniculate emissions and ash, as well as considerable volumes of SO_x and NO_x. Gasification is a technologically advanced and environmentally friendly process of disposing heavy fuel oils by converting them into clean combustible gas products. Thermochemical equilibrium modeling is the basis of an original numerical method implemented in this study to predict the performance of a heavy fuel oil gasifier. The model combines both the chemical and thermodynamic equilibriums of the global gasification reaction in order to predict the final syngas species distribution. Having obtained the composition of the produced syngas, various characteristics of the gasification process can be determined; they include the H_2:CO ratio, process temperature, and heating value of the produced syngas, as well as the cold gas efficiency and carbon conversion efficiency of the process. The influence of the equivalence ratio, oxygen enrichment (the amount of oxygen available in the gasification agent), and pressure on the gasification characteristics is analyzed. The results of simulations are compared with reported experimental measurements through which the numerical model is validated. The detailed investigation performed in the course of this study reveals that the heavy oil gasification is a feasible process that can be utilized to generate a syngas for various industrial applications.

机译：重燃料油的燃烧是产生微粒排放物和灰分以及大量SO_x和NO_x的主要来源。气化是将重质燃料油转化为清洁的可燃气体产品的技术先进，环保的过程。热化学平衡模型是这项研究中用于预测重质燃油气化炉性能的原始数值方法的基础。该模型结合了整体气化反应的化学和热力学平衡，以预测最终的合成气物种分布。获得了生成的合成气的组成后，可以确定气化过程的各种特征；它们包括H_2：CO的比例，工艺温度和产生的合成气的发热量，以及工艺的冷气效率和碳转化效率。分析了当量比，氧气富集度（气化剂中可用的氧气量）和压力对气化特性的影响。将模拟结果与报告的实验测量值进行比较，从而验证数值模型。在此研究过程中进行的详细研究表明，重油气化是可行的过程，可用于生产各种工业应用的合成气。

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来源
《Fuel》 |2011年第2期|p.878-885|共8页
作者
M. Vaezi; M. Passandideh-Fard; M. Moghiman; M. Charmchi;
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作者单位

Department of Mechanical Engineering, Ferdowsi University of Mashhad. Mashhad, Iran;

Department of Mechanical Engineering, Ferdowsi University of Mashhad. Mashhad, Iran;

Department of Mechanical Engineering, Ferdowsi University of Mashhad. Mashhad, Iran;

Department of Mechanical Engineering, University of Massachusetts Lowell, USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
heavy fuel oil; gasification; synthetic gas (syngas); numerical modeling; thermochemical equilibrium;

机译：重油气化;合成气（合成气）;数值建模;热化学平衡;

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Gasification of heavy fuel oils: A thermochemical equilibrium approach

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