CIESC Journal ›› 2022, Vol. 73 ›› Issue (8): 3518-3528.DOI: 10.11949/0438-1157.20220609
• Fluid dynamics and transport phenomena • Previous Articles Next Articles
Received:
2022-04-29
Revised:
2022-07-05
Online:
2022-09-06
Published:
2022-08-05
Contact:
Zhong XIN
通讯作者:
辛忠
作者简介:
姚翰林(1993—),男,博士研究生,18818205845@163.com
基金资助:
CLC Number:
Hanlin YAO, Zhong XIN. Research on flow behavior of liquid-phase precipitation reaction in the tubular microchannel reactor[J]. CIESC Journal, 2022, 73(8): 3518-3528.
姚翰林, 辛忠. 液相沉淀反应在管式微通道反应器中的流动行为研究[J]. 化工学报, 2022, 73(8): 3518-3528.
优/劣势 | 外环液层式微通道反应器 | 套管式微通道反应器 | |
---|---|---|---|
外环液层与反应溶剂不互溶 | 外环液层与反应溶剂相同 | ||
优势 | 1. 对反应沉淀和流动壁面的阻隔作用更加明显 2. 可保持反应物浓度和反应速率不被降低 | 1. 可保持反应器本身的传热性能 2. 不存在液液两相的分离问题 | 1. 射流速度高,可有效破坏沉积层和团聚体 2. 混合效果好 |
劣势 | 1. 增加了对反应物料的传热阻力 2. 增加了反应容积(管长) 3. 增加了分离难度和原料成本 | 1. 降低了反应物浓度和反应速率,增加了反应容积(管长) 2. 均匀混合后反应沉淀仍可能在壁面沉积 | 1. 内管压力大 2. 微孔加工精度要求高 3. 反应物的物质的量比可能失准,需要通过实验验证 |
Table 1 Analysis of potential superiorities and flaws of two novel static mixing microchannel reactor models
优/劣势 | 外环液层式微通道反应器 | 套管式微通道反应器 | |
---|---|---|---|
外环液层与反应溶剂不互溶 | 外环液层与反应溶剂相同 | ||
优势 | 1. 对反应沉淀和流动壁面的阻隔作用更加明显 2. 可保持反应物浓度和反应速率不被降低 | 1. 可保持反应器本身的传热性能 2. 不存在液液两相的分离问题 | 1. 射流速度高,可有效破坏沉积层和团聚体 2. 混合效果好 |
劣势 | 1. 增加了对反应物料的传热阻力 2. 增加了反应容积(管长) 3. 增加了分离难度和原料成本 | 1. 降低了反应物浓度和反应速率,增加了反应容积(管长) 2. 均匀混合后反应沉淀仍可能在壁面沉积 | 1. 内管压力大 2. 微孔加工精度要求高 3. 反应物的物质的量比可能失准,需要通过实验验证 |
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