文献类型：期刊文献

中文题名：甲烷二氧化碳重整制合成气中积炭效应的数值模拟

英文题名：Numerical simulation on the carbon deposition effect in methane carbon dioxide reforming

作者：曹军[1];张莉[1];徐宏[1];罗青[1]

机构：[1]华东理工大学机械与动力工程学院,上海200237

年份：2015

卷号：34

期号：10

起止页码：3630

中文期刊名：化工进展

外文期刊名：Chemical Industry and Engineering Progress

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

基金：中央高校基本科研业务费探索基金项目(WG1414044)

语种：中文

中文关键词：甲烷二氧化碳重整;积炭;孔隙率;数值模拟

外文关键词：carbon dioxide reforming of methane; carbon deposition; porosity; numerical simulation

摘要：通过建立包含动量、质量传递以及化学反应动力学方程的多物理场耦合数值模型,对以Ni为催化剂的甲烷二氧化碳重整制合成气过程中的积炭效应展开了计算。计算结果阐明了包含多孔介质催化剂段的反应通道中的速度场及压力分布,以及在通道中随气体流动以及沉积在催化剂表面的碳颗粒的浓度分布,分析了积炭对催化剂孔隙率和渗透率的影响,并进一步讨论了甲烷浓度以及温度对积炭产生的影响,最后提出了消减积炭的方法。本文的结论对于进一步研究Ni基催化剂在CH4-CO2重整制合成气反应中积炭效应的消减有一定的指导意义。
A multiphysics-coupled numerical model,containing the equations of momentum and mass transfer,as well as the chemical reaction kinetics,is developed in this work,which is used to calculate the carbon deposition effect in the process of methane carbon dioxide reforming. The velocity field and pressure distribution in the reaction channel with porous media catalyst section,as well as the carbon particle concentration distribution in the reaction channel flowing with the gases and deposited on the catalyst surface,are all analyzed in detail. Meanwhile,the effects of carbon deposition on the porosity and permeability of porous catalyst are discussed,the effects of both temperature and methane concentration on carbon deposition are also analyzed. Finally,the carbon elimination methods are proposed. The conclusions in this paper are helpful for further research on the carbon elimination in CH4-CO2 reforming reaction based on Ni catalyst.