氢催化燃烧供热脱氢系统及其能效分析

Dehydrogenation Heated by Hydrogen Catalytic Combustion and its Efficiency Analysis

有机液体储氢密度大但脱氢温度高,因此如何提供热源已成为急需解决的技术难题。本文设计的催化燃烧供热脱氢系统,具有系统内自供氢、低温、无火焰、安全的优点。建立脱氢系统的能效分析模型,并计算了不同储氢载体脱氢系统的能效。研究结果表明,氢气催化燃烧可以满足有机液体脱氢系统的能量需求。通过提高有机液体脱氢效率,降低尾气外排温度可以提高系统效率和能效。开发的能效分析模型可用于筛选有机液体储氢载体。

Organic liquid hydrogen carrier (OLHC)possesses high hydrogen density and dehydrogenation temperature.So the heat resource is a key for the dehydrogenation.In this paper,the dehydrogenation system heated by hydrogen catalytic combustion is developed.The system is fueled with hydrogen produced by the dehydrogenation with low-temperature,flameless and safe.The efficiency analysis model of the dehydrogenation is established,and the efficiency of OLHC is investigated by calculating the energy consumption.The result shows that the heat provided by hydrogen catalytic combustion could meet the energy requirement of OLHC.The efficiency can be improved by dehydrogenation efficiency of OLHC and reducing the temperature of exhaust gas.The model developed in this paper can be useful for screening candidate OLHC,