基于熔融盐加热的甲烷重整制氢反应器的熵产率和氢气产率分析

李鹏蕾，陈林根，夏少军，张磊，王超，冯辉君

（1．海军工程大学动力工程学院，湖北省武汉市 430033； 2．武汉工程大学热科学与动力工程研究所，湖北省武汉市430205； 3．武汉工程大学机电工程学院，湖北省武汉市430205）

Entropy Generation Rate and Hydrogen Production Rate Analyses for Steam Methane Reforming Reactor Heated by Molten Salt

LI Penglei, CHEN Lingen, XIA Shaojun, ZHANG Lei, WANG Chao, FENG Huijun

(1. College of Power Engineering, Naval University of Engineering, Wuhan 430033, China; 2. Institute of Thermal Science and Power Engineering, Wuhan Institute of Technology, Wuhan 430205, China; 3. School of Mechanical & Electrical Engineering, Wuhan Institute of Technology, Wuhan 430205, China)

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摘要: 太阳能热化学储能能够有效解决太阳能时间和空间分布不均的问题。利用有限时间热力学理论重点研究了基于熔融盐加热的甲烷蒸汽重整(MS-SMR)反应器的性能，在工业甲烷蒸汽重整反应器模型的基础上建立了MS-SMR反应器模型，得到了参考反应器的设计参数，并分析了反应器的几何参数和操作参数对反应器的氢气产率和总熵产生率的影响规律。结果表明：在氢气产率一定时，逆流参考反应器比顺流参考反应器的总熵产生率低，且消耗的熔融盐少；增大熔融盐进口温度和减小反应混合物进口压力能够显著提高MS-SMR反应器的氢气产率。本文的研究结果对实际MS-SMR反应器的优化设计具有一定的理论指导意义。

关键词 ：甲烷蒸汽重整反应器, 熔融盐, 熵产生率, 氢气产率, 有限时间热力学

Abstract：Solar thermochemical energy storage can effectively deal with the uneven distribution of the solar energy in temporal and spatial. This paper studies the steam methane reforming reactor heated by molten salt (MS-SMR) using the theory of finite-time thermodynamics, establishes a model of MS-SMR reactor based on the model of the industrial steam methane reforming reactor, obtains the design parameters of a reference reactor, and analyzes the effects of the geometry and operation parameters in the reference reactor on the hydrogen production rate and the total entropy generation rate. The results obtained in this paper indicate that the total entropy generation rate and the consumption of the molten salt in a counter-flow reference reactor are smaller than those in a parallel-flow reference reactor, in the case of hydrogen production rate is fixed. The hydrogen production rate can be enhanced observably by increasing the inlet temperature of the molten salt and decreasing the pressure of the mixture gas. The results obtained in this paper are in favour of the optimization design of the practical MS-SMR reactor.

Key words： steam methane reforming molten salt entropy generation rate hydrogen production rate finite-time thermodynamics

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引用本文:

李鹏蕾, 陈林根, 夏少军, 张磊, 王超, 冯辉君. 基于熔融盐加热的甲烷重整制氢反应器的熵产率和氢气产率分析[J]. 发电技术, .
LI Penglei, CHEN Lingen, XIA Shaojun, ZHANG Lei, WANG Chao, FENG Huijun. Entropy Generation Rate and Hydrogen Production Rate Analyses for Steam Methane Reforming Reactor Heated by Molten Salt. Power Generation Technology, 0, (): 1-.

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http://www.pgtjournal.com/CN/ 或 http://www.pgtjournal.com/CN/Y0/V/I/1

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