制冷技术2025，Vol.45Issue(2)：43-49,7.DOI:10.3969/j.issn.2095-4468.2025.02.107
甲醇合成绕管式反应器内流动传热传质过程的数值模拟研究
Numerical Simulation of Flow Heat and Mass Transfer in Tubular Reactor for Methanol Synthesis
潘晨曦 1胡海涛 1杨培廉 1雷睿 1张立裕 1李旋 1冯再南 2许锦辉 2楼韧 2楼寿林2
作者信息
- 1. 上海交通大学机械与动力工程学院,上海 200240
- 2. 杭州林达化工技术工程有限公司,浙江 杭州 310012
- 折叠
摘要
Abstract
A three-dimensional computational fluid dynamics(CFD)model coupled with reaction kinetics and transport processes is established to investigate the effects of cooling water velocity,tube layer spacing and inter-tube spacing on temperature distribution,pressure drop and CO₂ conversion.The results show that,when the flow rate of cooling water is increased from 0.2 m/s to 1.8 m/s,the maximum temperature in the reaction zone is decreased by 4.01℃,but the CO₂ conversion rate is decreased from 26%to 24.14%due to kinetic inhibition.CO₂ conversion can be increased to 31.22%by increasing layer spacing(5-30 cm),but the hot spot temperature is increased by 39.18℃.The conversion rate is slightly increased(24.54%-26.57%)by the expansion of tube spacing(30-60 mm)through reducing the heat transfer efficiency.The synergistic mechanism of flow-heat-transfer reaction is revealed,and the gradient layer spacing design is proposed to balance the demand of heat transfer and the optimization of reaction kinetics.关键词
绕管式反应器/甲醇合成/数值模拟/传热传质Key words
Coiled-tube reactor/Methanol synthesis/Numerical simulation/Heat and mass transfer分类
化学工程引用本文复制引用
潘晨曦,胡海涛,杨培廉,雷睿,张立裕,李旋,冯再南,许锦辉,楼韧,楼寿林..甲醇合成绕管式反应器内流动传热传质过程的数值模拟研究[J].制冷技术,2025,45(2):43-49,7.
