Computational Process Engineering Research Unit, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
Computational Process Engineering Research Unit, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand.
Bioresour Technol. 2014 Apr;157:231-9. doi: 10.1016/j.biortech.2014.01.113. Epub 2014 Feb 5.
The fuel processor in which hydrogen is produced from fuels is an important unit in a fuel cell system. The aim of this study is to apply a thermodynamic concept to identify a suitable reforming process for an ethanol-fueled solid oxide fuel cell (SOFC). Three different reforming technologies, i.e., steam reforming, partial oxidation and autothermal reforming, are considered. The first and second laws of thermodynamics are employed to determine an energy demand and to describe how efficiently the energy is supplied to the reforming process. Effect of key operating parameters on the distribution of reforming products, such as H2, CO, CO2 and CH4, and the possibility of carbon formation in different ethanol reformings are examined as a function of steam-to-ethanol ratio, oxygen-to-ethanol ratio and temperatures at atmospheric pressure. Energy and exergy analysis are performed to identify the best ethanol reforming process for SOFC applications.
从燃料中生产氢气的燃料处理器是燃料电池系统中的一个重要单元。本研究旨在应用热力学概念来确定适用于乙醇燃料固体氧化物燃料电池（SOFC）的重整工艺。考虑了三种不同的重整技术，即蒸汽重整、部分氧化和自热重整。热力学第一定律和第二定律用于确定能量需求，并描述能量如何有效地供应给重整过程。考察了关键操作参数对重整产物（如 H2、CO、CO2 和 CH4）分布的影响，以及不同乙醇重整过程中形成碳的可能性，作为蒸汽与乙醇比、氧气与乙醇比和常压温度的函数。进行了能量和火用分析，以确定用于 SOFC 应用的最佳乙醇重整工艺。
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