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Experimental study of 2-methoxyethanol steam reforming in a membrane reactor for pure hydrogen production

机译:纯氢气膜反应器中2-甲氧基乙醇蒸汽重整的实验研究

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摘要

For the first time, 2-methoxyethanol (C3H8O2) was used for producing pure hydrogen in a catalytic membrane reactor (CMR) via steam reforming (SR). The SR experiments were performed at 923 K and 1–10 bar using a mixture of 2-methoxyethanol (MEX) and water at S/C ratio of 3. Moreover, SR experiments were performed under the same operating conditions using ethylene glycol (EG), methanol (MET), and a mixture of EG + MET, keeping a constant carbon molar flow rate into the CMR to study the reaction pathway through which 2-methoxyethanol is converted to SR products (CH4, CO, CO2, and H2). Hydrogen recovery values of up to 90% and pure hydrogen yields of 0.5 and 0.63 at 10 bar were reached in the case of the steam reforming of MEX and EG + MET, respectively. An outstanding value of 4 mol of pure hydrogen per mol of MEX was obtained at 10 bar. The presence of methanol promoted the SR of EG. The experimental results showed that 2-methoxyethanol is a promising source for producing hydrogen, especially in a CMR where a better efficiency (complete fuel conversion and high hydrogen yield) is reached.
机译:首次,使用2-甲氧基乙醇(C3H8O2)通过蒸汽重整(SR)在催化膜反应器(CMR)中在催化膜反应器(CMR)中产生纯氢。使用2-甲氧基乙醇(Mex)和S / C比的水的混合物在923k和1-10巴下进行Sr实验。此外,使用乙二醇(例如)在相同的操作条件下进行Sr实验,甲醇(得到)和例如+满足的混合物,将恒定的碳摩尔流速保持在CMR中以研究2-甲氧基乙醇转化为SR产物(CH 4,CO,CO 2和H 2)的反应途径。在MEX的蒸汽重整的情况下,达到了高达90%,纯氢产率为0.5和0.63的纯氢产率为0.5和0.63,分别达到+ MET。在10巴中获得每摩尔MEX的4摩尔纯氢的出色值。甲醇的存在促进了例如甲醇的SR。实验结果表明,2-甲氧基乙醇是用于生产氢的有希望的源,尤其是在CMR中,其中达到更好的效率(完全燃料转换和高氢产率)。

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  • 作者

    Ali Hedayati; Jordi Llorca;

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  • 年度 2017
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  • 原文格式 PDF
  • 正文语种 eng
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