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首页> 外文期刊>International journal of hydrogen energy >Analysis of reformer furnace tubes for hydrogen production using radiative zonal model
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Analysis of reformer furnace tubes for hydrogen production using radiative zonal model

机译：辐射区带模型分析重整炉炉管制氢

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摘要

Reformer tubes are commonly used in furnaces to produce hydrogen and synthesis gas in the refining, petrochemical and fertilizer industries. An optimum arrangement and dimensions of the reformer tubes could be obtained from a mathematical modeling. In the present study, a comparison of different tube sizes is presented based on the well-established radiation zonal analysis in the furnace beside mass, momentum, and energy balance in the reactor tubes. For the practical case studies, three Cr-Ni alloy stainless steel tubes were selected to analyze different tube dimensions including diameter, thickness and tube spacing with the same inlet process feed, fuel consumption and catalyst weight. It is shown that for three industrial tube materials a 20% increase in the tube diameter causes a 20% increase in the tube thickness, 10-20% decrease in furnace length (according to the design procedure) and 3-6% decrease in methane conversion. The results of another analysis show that a 5-9% decrease in the fuel consumption is followed by a 20% decrease in the tube diameter for the same amount of hydrogen production for three cases. Moreover, the three tube materials were compared in accordance to the fuel consumption. In all cases minimum tube thickness is desirable.
机译：在炼油，石化和化肥工业中，重整管通常用于熔炉中以生产氢气和合成气。重整管的最佳布置和尺寸可以通过数学模型获得。在本研究中，基于反应堆管中质量，动量和能量平衡以及在炉中建立良好的辐射区带分析，提出了不同管径的比较。对于实际案例研究，选择了三只Cr-Ni合金不锈钢管，以分析具有相同进口工艺进料，燃料消耗和催化剂重量的不同管尺寸，包括直径，厚度和管间距。结果表明，对于三种工业管材，管径增加20％会使管子厚度增加20％，炉长减少10-20％（根据设计程序），甲烷减少3-6％转换。另一分析的结果表明，在三种情况下，对于相同量的氢气生产，燃油消耗量减少了5-9％，管径减小了20％。此外，根据燃料消耗比较了三种管材。在所有情况下，最小的管厚度都是理想的。

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