摘要
氢能是清洁绿色的二次能源和载能体,利用太阳能热驱动甲醇蒸汽重整制取氢气,可实现太阳能的高效存储与氢气制备。基于流化床传热传质效率高的优点,设计聚光太阳能流化床甲醇重整制氢系统,模拟了镜场的光线路径和反应器表面的辐照能流分布,探究了不同操作参数对重整反应的影响规律。结果表明:相比固定床,使用流化床反应器更有利于提高甲醇蒸汽重整制氢效率;当辐照强度为10 000 W/m~2,水与甲醇摩尔比1.4,进口流速0.40 m/s,床层厚度0.20 m时,甲醇转化率可达99.6%,氢气产率达2.57 mol/mol。该研究结果对太阳能甲醇重整制氢反应器设计和操作参数优化具有重要参考意义。
Hydrogen energy is the clean and green secondary energy and energy carrier.Using solar energy driven methanol steam reforming to produce hydrogen can realize high efficiency hydrogen production and solar energy storage.Based on the advantages of high heat and mass transfer efficiency of fluidized bed,a concentrated solar energy fluidized bed methanol reforming system for hydrogen production is designed.The light pathway of heliostats field and the irradiation energy flow distribution on reactor surface are simulated,and the influence law of different operating parameters on the reforming reaction is explored.The results show that,compared with fixed bed,using fluidized bed reactor is more beneficial to improve the efficiency of hydrogen production by methanol steam reforming.When the irradiation intensity is 10 000 W/m2,the mole ratio of water to methanol is 1.4,the inlet flow rate is 0.40 m/s and the bed thickness is 0.20 m,the methanol conversion rate can reach 99.6% and the hydrogen yield can reach 2.57 mol/mol.The present investigations provide reference significance for reactor design and operation parameter optimization of solar methanol reforming hydrogen production.
作者
杨玉滢
刘舜
杜小泽
YANG Yuying;LIU Shun;DU Xiaoze(School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China;School of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou 730050,China)
出处
《热力发电》
CAS
CSCD
北大核心
2022年第11期164-173,共10页
Thermal Power Generation
基金
国家自然科学基金项目(52090062,52130607)。
关键词
制氢
甲醇蒸汽重整
流化床反应器
太阳能
hydrogen production
methanol steam reforming
fluidized bed reactor
solar energy
