氢气燃烧对自热透氢膜反应器的影响  

Effect of hydrogen combustion on hydrogen permeation membrane autothermal reactor

作　　者：刘松军[1] 田野[1] 

机构地区：[1]天津大学化工学院化学工程国家联合重点实验室,天津市应用催化重点实验室,天津300072

出　　处：《现代化工》2014年第1期137-140,共4页Modern Chemical Industry

基　　金：国家自然科学基金项目(21120102039)

摘　　要：设计了一种新型的钯膜自热反应器体系,利用钯膜的透氢和换热的作用,燃烧部分氢气来提供热量。通过建立一维拟均相管壳式结构的膜反应器模型,将反应器控制方程、动力学数据、膜渗透数据,以及组分的物理化学性质通过Matlab编程计算,比较了氢气均相燃烧和催化燃烧2种动力学对反应器的影响。结果表明,在没有燃烧催化剂的情况下,反应器易发生爆炸,而有催化剂可以避免爆炸,并且能够提高反应器的处理量。指出催化燃烧加快氢气燃烧速率、避免氢气在燃烧一侧的积累是反应器安全操作的关键。A new palladium membrane autothermal reactor model is proposed in this paper. The membrane functions as a hydrogen separator and heat exchanger. A part of produced hydrogen is combusted for providing energy. A 1-D shell- tube type membrane reactor is used and the governing equations, kinetics data, membrane data and species physical properties are programmed and calculated by using Matlab. The homogeneous combustion kinetics and catalytic combustion kinetics are compared. The results reveal that the reactor is likely to experience the explosion without combustion catalyst, while the catalytic combustion can avoid the explosion and also boost the capacity of this reactor. The fast catalytic combustion which prevents the hydrogen accumulation on the combustion side is the key factor of operation security.

关 键 词：自热反应器 氢气燃烧 钯膜反应器 反应器模拟 

分 类 号：TQ03-39[化学工程]