电磁感应加热二氧化碳甲烷化催化反应器模型  

Modeling catalytic carbon dioxide methanation reactor heated by electromagnetic induction

作　　者：王付泳 陈健豪 李照 杨光星 周凌云 余皓[2] WANG Fuyong;CHEN Jianhao;LI Zhao;YANG Guangxing;ZHOU Lingyun;YU Hao(School of Chemical Engineering,Guizhou Minzu University,Guiyang 550025,Guizhou,China;School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510641,Guangdong,China;School of Chemistry and Chemical Engineering,Guangzhou University,Guangzhou 510006,Guangdong,China)

机构地区：[1]贵州民族大学化学工程学院,贵州贵阳550025 [2]华南理工大学化学与化工学院,广东广州510641 [3]广州大学化学化工学院,广东广州510006

出　　处：《化工进展》2024年第12期6750-6759,共10页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(22078106);贵州省自然科学基金重点项目(ZK[2022]028)。

摘　　要：电磁感应加热技术作为一种新型非接触式供能技术,可用于化学反应器的加热。该技术有望实现化学品生产工艺从化石能源驱动向电能驱动转型,有效降低化学工业的碳排放。本文对电磁感应加热的二氧化碳加氢甲烷化反应器进行了模型研究,建立了电磁感应加热方式下的COMSOL Multiphysics模型,设计了y=An、y=Bn^(2)、y=Cn^(3)、y=De^(n)、y=E五种缠绕方式,探究了线圈缠绕方式和工艺条件对反应器温度、浓度分布和能耗的影响。研究结果显示,电磁感应加热线圈可在入口段和反应段采取不同的缠绕方式:在入口段,线圈宜紧密缠绕以实现快速升温;而在反应段,线圈应稀疏缠绕以避免反应器出现“热点”。线圈的缠绕方式是优化电磁感应加热反应器性能的关键,有助于避免反应器出现“热点”和失稳,降低反应器的能耗。The electromagnetic induction heating technology,as a new non-contact energy supply technology,can be used for heating reactors.This technology is expected to convert chemical production from fossil fuel-driven to electric energy-driven,effectively reducing carbon emissions.In this work,a modeling study on the electromagnetic induction heating of a carbon dioxide methanation reactor was conducted.A COMSOL Multiphysics model was established for the application of electromagnetic induction heating,and five coil winding modes,y=An,y=Bn^(2),y=Cn^(3),y=De^(n)and y=E were designed.The effects of coil winding method and process conditions on reactor temperature,concentration distribution,and energy consumption were investigated.The research results showed that the heating coil could adopt different winding methods in the inlet and reaction sections.In the inlet section,the coil should be wound tightly to achieve rapid heating,while in the reaction section,the coil should be wound sparsely to avoid the appearance of“hot spots”in the reactor.The winding method of the coil was critical for optimizing the performance of the electromagnetic induction heating reactor by avoiding the“hot spots”and instability in the reactor and reducing its energy consumption.

关 键 词：二氧化碳甲烷化 电磁感应加热 数值模拟 反应器 模型 反应工程 

分 类 号：TQ032.4[化学工程]