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Properties of methane autothermal reforming to generate hydrogen in membrane reactor based on thermodynamic equilibrium model

机译：基于热力学平衡模型的甲烷自热改性在膜反应器中产生氢的性质

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摘要

Methane reforming reaction is one of the most important industrial chemical processes for hydrogen production. Membrane reactor has better performance of methane reforming reaction, can effectively increase methane conversion and hydrogen yield. To utilize this technology more effectively, it is necessary to develop a better understanding of the process of hydrogen generation and the effects of various parameters on the performance of membrane reactor. The characteristics of methane autothermal reforming to generate hydrogen in membrane reactor are studied with the thermodynamic equilibrium model. The results show that increasing permeate side pressure leads to reducing methane conversion and hydrogen permeability. Retentate side pressure has little effect on methane autothermal reforming reaction. The increase of air-methane molar ratio leads to a lower hydrogen production. The hydrogen production increases firstly and then decreases with the elevated steam methane molar ratio. The H-2/CO molar ratio can be regulated by the steam-methane molar ratio. Methane autothermal reforming occurs much more easily when temperature of 973 K, retentate side pressure and permeate side pressure of 0.1 MPa and 0.02 MPa, and the molar ratio of air-methane and steam-methane of 1 and 2 respectively.
机译：甲烷重整反应是氢生产最重要的工业化学方法之一。膜反应器具有更好的甲烷重整反应性能，可以有效提高甲烷转化和氢屈服。为了更有效地利用该技术，有必要能够更好地理解氢生成的过程和各种参数对膜反应器的性能的影响。研究了热力学平衡模型研究了甲烷自热再热改性以产生膜反应器中的氢气。结果表明，增加渗透侧压力导致降低甲烷转化和氢渗透性。保持物侧压对甲烷自热重整反应几乎没有影响。空气 - 甲烷摩尔比的增加导致较低的氢气产生。氢气产量首先增加，然后随蒸汽甲烷摩尔比升高而降低。 H-2 / CO摩尔比可以通过蒸汽 - 甲烷摩尔比调节。当温度为973 k，滞留侧压力和渗透侧压力为0.1MPa和0.02MPa的渗透物和0.02MPa的摩尔比分别为1和2的空气 - 甲烷和蒸汽 - 甲烷的摩尔比，更容易发生甲烷自热再现重整。

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