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化学工业与工程 2012, Vol. 29 Issue (4) :45-49    DOI:
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填料塔气液并流接触时压降的研究
 何杰, 单鹏飞, 谭长斌, 张莉莉
(天津大学化工学院,天津 300072)
Pressure Drop of Packed Column in Gas-Liquid Co-Current Flow
 HE  Jie, DAN  Peng-Fei, TAN  Chang-Bin, ZHANG  Li-Li
(School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China)

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摘要 以内径72 mm的玻璃吸收塔为主体,分别采用Mellapack-250X型金属孔板波纹规整填料以及Dg16塑料阶梯环散堆填料作为传质媒介。以水-SO2作为研究体系,结合气液逆流接触吸收试验对比分析气液并流接触时填料层压降的情况,并分别考察了气相动能因子F和液气比L/V对填料吸收塔气液并流接触时填料层压降的影响。填料层压降随着气相动能因子F的增大呈指数型增长,随着液气比的增加而升高,并流操作时的影响相对逆流操作时变化幅度较小。通过试验结果拟合出相应压降的关联式,为进一步的工艺设计与优化提供相关依据与理论指导。
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何杰
单鹏飞
谭长斌
张莉莉
关键词填料塔   并流   逆流   液气比   压降   气相动能因子     
Abstract: A research on pressure drop in a glass column of ID 72 mm with gasliquid counter- and co-current flow was carried out. Mellapack-250X metal corrugated ripple plate structured packing and Dg16 plastic random packing of cascade mini ring were adopted as mass transfer media respectively. Taking H2O-SO2 as research system and combining it with counter-current absorption experiments, we contrastively analyzed pressure drop of packed column with gas-liquid co-current in detail. The influences of gas phase capacity factor F and liquidgas ratio L/V on pressure drop were investigated respectively. Pressure drop increased with the rising of F and L/V. And the influence was less than that with counter-current absorption. Correlation equations of pressure drop were gained from experimental data, which provided theoretical guidance for further process design and optimization.
Keywordspacked column   co-current   counter-current   liquid-gas ratio   pressure drop   gas phase capacity factor     
引用本文:   
何杰, 单鹏飞, 谭长斌, 张莉莉.填料塔气液并流接触时压降的研究[J].  化学工业与工程, 2012,29(4): 45-49
HE Jie, DAN Peng-Fei, TAN Chang-Bin, ZHANG Li-Li.Pressure Drop of Packed Column in Gas-Liquid Co-Current Flow[J].  Chemcial Industry and Engineering, 2012,29(4): 45-49
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