高温气冷堆甲烷蒸汽重整制氢系统重整器性能数值分析

Numerical Analysis of Performance of Steam Reformer of Methane Reforming Hydrogen Production System Connected With High-Temperature Gas-Cooled Reactor

甲烷转化率和产氢量是反映重整器性能的重要指标。本文对匹配高温气冷堆HTR-10的蒸汽重整器性能进行数值分析。设定重整器氦气入口流量不变,研究不同氦气入口温度、压力,不同工艺气入口温度、压力、流量,以及不同水碳比对重整器性能的影响。在所研究的范围内,结果表明:氦气的入口温度对重整器性能有明显的影响;氦气的入口压力、工艺气的入口温度和压力对重整器性能影响较小;提高工艺气流量,甲烷转化率降低,但产氢量增加,而提高水碳比则有相反的变化关系。

Methane conversion rate and hydrogen output are important performance indexes of the steam reformer. The paper presents numerical analysis of performance of the reformer connected with high-temperature gas-cooled reactor HTR-10. Setting helium inlet flow rate fixed, performance of the reformer was examined with different helium inlet temperature, pressure, different process gas temperature, pressure, flow rate, and different steam to carbon ratio. As the range concerned, helium inlet temperature has remarkable influence on the performance, and helium inlet temperature, process gas temperature and pressure have little influence on the performance, and improving process gas flow rate, methane conversion rate decreases and hydrogen output increases, however improving steam to carbon ratio has reverse influence on the performance.