文献类型：期刊文献

中文题名：有机氢化物自热供氢反应器模拟

英文题名：Simulation of autothermal reactor for hydrogen production by catalytic dehydrogenation of liquid organic hydrides

作者：寇小文[1];姜昊[1];脱永笑[1];于新海[2];顾雄毅[1];李平[1]

机构：[1]化学工程联合国家重点实验室,上海200237;[2]华东理工大学机械与动力工程学院,上海200237

年份：2015

卷号：35

期号：10

起止页码：152

中文期刊名：现代化工

外文期刊名：Modern Chemical Industry

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：国家自然科学基金项目(21276077);中央高校基本科研业务费(WG1213011)

语种：中文

中文关键词：有机氢化物;脱氢;氢气燃烧;自热反应器;模拟

外文关键词：liquid organic hydrides ; dehydrogenation ; H2 combustion ; autothermal reactor; simulation

摘要：采用幂函数型动力学模型,对十氢萘气相脱氢实验数据进行非线性最小二乘拟合,得到关于十氢萘反应级数为0.585,活化能为59.012 k J/mol的动力学方程。对同心套管式反应器中十氢萘气相脱氢和氢气催化燃烧的耦合反应进行了理论研究,分析并排除了脱氢反应催化剂颗粒内及气固相间传质及传热阻力影响,建立了一维拟均相稳态反应器模型,考察了进料空气氢气比例、脱氢侧和烧氢侧进口流量、并逆流方式对反应器性能的影响。最终设计出1.7 L的反应器单元,反应器理论产氢速率达7.69 mmol/s,可满足1 k W的燃料电池发电供氢需求。
Decalin,a representative liquid organic hydride, is a promising candidate for hydrogen carrier. In this study ,a power law kinetic model is used for the description of hydrogen releasing via catalytic gas-phase decalin dehydrogenation. The kinetic parameters are obtained by nonlinear least squares fitting of the experimental data. The acquired reaction order related to decalin is 0. 585 with activation energy of 59. 012 kJ/mol. A theoretical study of decalin dehydrogenation coupled with hydrogen catalytic combustion in a concentric tube reactor based on a one- dimensional pseudo-homogeneous model is presented. Mass transport and heat transport effects in the internal pore and gas film of the dehydrogenation channel are analyzed and excluded. The effects of inlet velocities in both channels, ratio of inlet air and hydrogen, co-current and countereurrent flow arrangements on the reactor thermal behavior and performance are studied. The net hydrogen evolution rate per 1.7 L reactor is 7. 77 mmol/s, which can supply a 1 kW fuel cell.