A numerical study of internally heating, counter- flow tubular packed bed reactor for methanol steam reforming

被引：10
|
作者：
Kusumastuti, Rizky [1 ]
Sasmoko [1 ]
Cheng, Po-Chun [1 ]
Tseng, Chung-Jen [1 ,2 ]
机构：
[1] Natl Cent Univ, Inst Energy Engn, Taoyuan 320317, Taiwan
[2] Natl Cent Univ, Dept Mech Engn, Taoyuan 320317, Taiwan
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2024年 / 52卷
关键词：
Divergent tube; Heating tube; Methanol steam reformer; Reformer angle; Velocity; HYDROGEN-PRODUCTION; FUEL-CELL; PERFORMANCE; RECOVERY; ENHANCEMENT;
D O I：
10.1016/j.ijhydene.2023.04.187
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
This study numerically investigates methanol steam reformer design using the COMSOL software. The reformer is heated with internal heating tubes (HTs). The effects of the reformer shape, the heating tube arrangement and heating rate are studied. Results show that a divergent reformer shape has the highest methanol conversion (68%) due to slower average flow rate of the reactants, longer residence time, and more heat absorption. For fixed heating rate, increasing the number of HTs increases the methanol conversion rate by up to 14.8% due to better heat transfer. Furthermore, methanol conversion can also be enhanced with increasing heating rate and placing HTs towards reactor center. The optimal design of a divergent tube with a divergent angle of 5 degrees and 8 HTs has a maximum conversion rate of 94.5%. The results of this study are helpful for engineers working on designing an MSR with high-methanol conversion rate.(c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：964 / 977
页数：14
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