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首页> 外文会议>International Conference on Automatic Control and Mechatronic Engineering >Autothermal Reforming of Ethanol for Hydrogen Production: Thermodynamic Analysis
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Autothermal Reforming of Ethanol for Hydrogen Production: Thermodynamic Analysis

机译：乙醇的自热改性氢气生产：热力学分析

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This work presents the autothermal reforming (ATR), or called oxidative steam reforming (OSR), of ethanol for hydrogen production. A thermodynamic analysis of product distribution for ATR from ethanol has been performed by using the method of Gibbs free energy minimization. The effect of steam-to-carbon (S:C) and air-to-carbon (A:C) molar ratios under adiabatic temperature of ATR reactor on chemical equilibrium composition of hydrogen rich stream is investigated. An increase of S:C ratio increases an efficiency of hydrogen production while carbon monoxide formation decreases but, however, more energy consumption for preheating reactants is also needed. An increase of A:C ratio in the range between 0 and 1.75 causes an increase of hydrogen yield but at greater A:C ratio, a decrease of hydrogen production and more water formation can be found. The results of the thermodynamic equilibrium show that the predicted hydrogen composition in the reaction of fuel-water-air system at constant temperature is higher than that obtained from experiment in both the absence and presence of catalysts in the OSR reaction when the temperature is fixed at 700°C. The predicted carbon monoxide is lower than that obtained from the results of non-catalytic reaction but higher than that attained from the presence of catalyst in process.
机译：该作品介绍了乙醇的自热改性（ATR），或称为氧化蒸汽重整（OSR），用于氢气产生。通过使用Gibbs自由能量最小化方法进行了来自乙醇的ATR的产品分布的热力学分析。研究了蒸汽 - 碳（S：C）和空气 - 碳（A：C）摩尔比在ATR反应器的绝热下对富氢物流的化学平衡组合物的影响。 S：C比率的增加提高了氢生产的效率，而一氧化碳形成降低但也需要对预热反应物的更多能量消耗。增加A：C的比率在0和1.75之间导致氢屈服的增加，但在更大的A：C的比率下，可以发现氢气产生和更多的水形成。热力学平衡的结果表明，当温度固定时，燃料 - 水 - 空气系统在燃料 - 水 - 空气系统反应中的反应中预测的氢组合物在OSR反应中的催化剂中的催化剂中获得的反应700°C。预测的一氧化碳低于非催化反应结果，但高于催化剂在方法中获得的一氧化碳。

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