流型分布对甲醇制氢反应器性能的影响  

Effects of Flow Patterns on the Performance of Plate-fin Reactor Producing Hydrogen from Methanol

作　　者：马克东[1] 周毅[1] 毕怡[1] 张磊[2] 潘立卫[1,3] 

机构地区：[1]大连大学环境与化学工程学院,辽宁大连116622 [2]辽宁石油化工大学化学化工与环境学部,辽宁抚顺1130013 [3]中国科学院大连化学物理研究所,辽宁大连116023

出　　处：《中国沼气》2016年第3期14-19,共6页China Biogas

基　　金：国家自然科学基金面上项目(21376237,21076206);辽宁省教育厅科学研究一般项目(L2014157)

摘　　要：文章建立了板翅式甲醇制氢反应器的三维数学模型,并采用此模型对板翅式制氢反应器内部的温度分布和浓度分布进行了数值计算;计算结果和实验结果吻合度高。重点考察了流型选取对板翅式甲醇制氢反应器性能的初步规律:错流结构的反应器中,燃烧腔和重整腔的温度分布均表现为温度沿反应腔的对角位置逐渐升高;并流结构的反应器中,反应器内的温度比较容易控制;逆流结构的反应器中,传热系数最高、两腔之间热量匹配困难。A highly compact plate-fin reactor（ PFR） producing hydrogen,derived from a plate-fin heat exchanger,coupling of the endothermic reaction with exothermic reaction,was introduced in this paper. A three-dimensional mathematic model describing the reaction process in PFR was established in accordance with different flow design. The mathematic model was able to predict the distributions of temperature and concentration in the hydrogen producing reactor. The effects of flow patterns on the performance in the hydrogen producing plate-fin reactor were investigated. In the cross-flow test,the temperature in combustion and reforming chamber increased along the chamber diagonal. The Co-current flow model had superiority in temperature control,and the counter-flow model had the highest thermal conductivity.

关 键 词：板翅式反应器 数学模型 甲醇水蒸汽重整 制氢 流型分布 

分 类 号：S216.4[农业科学—农业机械化工程]