甘油膜分离-吸附协同强化化学链重整评估  

Evaluation of sorption and membrane separation enhanced chemical looping reforming of glycerol

作　　者：张晓光[1] Zhang Xiaoguang(China Special Equipment Inspection and Research Institute,Beijing 100029,China)

机构地区：[1]中国特种设备检测研究院,北京100029

出　　处：《工业催化》2020年第7期63-67,共5页Industrial Catalysis

摘　　要：作为生物柴油的副产物,甘油理论氢气产量高,是蒸汽重整的潜在原料。基于化学链技术,结合氢气膜分离和二氧化碳吸附,对甘油化学链重整制氢过程进行热力学模拟研究,分析反应器操作压力和膜渗透侧压力的改变对氢气产量和系统热量需求的影响。结果表明,反应器压力的提高和渗透侧压力的降低可以有效的增强氢气产量,抑制甲烷的生成,系统的反应热对压力的变化并不敏感,而吸附剂甘油比的提高能够提高重整所需的热量,进而实现系统的自热。Glycerol,a by-product of biodiesel has become a potential raw material for steam reforming owing to a high theoretical yield of hydrogen.Based on the chemical looping reforming(CLR)process,combined with hydrogen membrane separation and CO2 sorption,a thermodynamic evaluation of glycerol chemical loopng reforming for hydrogen production is carried out.The dependence of hydrogen yield and heat consumption on operating parameters including reactor pressure and permeate side hydrogen partial pressure is analyzed.The results reveal that the increase of reactor pressure and the reduction of permeate side hydrogen partial pressure will reduce the hydrogen yield and limit the methane prodution.The syterm reaction heat is not sensitive to the pressure.The increase of sorbent to glycerol ratio can pormote the heat requiement and achiveve the auto-thermal system.

关 键 词：能源化学 膜分离 甘油 化学链重整 制氢 

分 类 号：O643[理学—物理化学] TQ028.8[理学—化学]