Experimental study on recycling water vapor from flue gas of thermal power plants using hollow fiber membrane

CHEN Haiping; LIU Yanda; ZHOU Yanan

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Experimental study on recycling water vapor from flue gas of thermal power plants using hollow fiber membrane

Thermal Power Generation Issue 12, (2016)

更新时间：2025-09-28

- Experimental study on recycling water vapor from flue gas of thermal power plants using hollow fiber membrane
- 作者机构：
  
  华北电力大学国家火力发电工程技术研究中心,北京,102206
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ340.68
- Published Online：27 December 2016，
  
  Published：2016
- 稿件说明：
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CHEN Haiping, LIU Yanda, ZHOU Yanan. Experimental study on recycling water vapor from flue gas of thermal power plants using hollow fiber membrane[J]. Thermal Power Generation, 2016, (12).
DOI：

CHEN Haiping, LIU Yanda, ZHOU Yanan. Experimental study on recycling water vapor from flue gas of thermal power plants using hollow fiber membrane[J]. Thermal Power Generation, 2016, (12). DOI：

摘要

火电厂排烟中水蒸气体积分数巨大

如能部分回收利用

效益可观。本文制备了PES-SPEEK56中空纤维膜

并研究了其在不同烟气温度、烟气流速、水蒸气活度下的烟气水分回收性能。结果表明:渗透系数比渗透通量更能确切反映水蒸气的实际渗透性能；烟气温度在54～70 ℃时

随着烟气温度升高

渗透系数也不断增加

达到70 ℃以后

渗透系数基本不再变化；烟气流速(0.1～0.6 m/s)的增加有利于提高渗透系数

但会降低水蒸气回收率；水蒸气活度(0.33～1.00)的增加会导致水蒸气的渗透系数和回收率均降低。在某600 MW机组上的实际计算表明

采用该方法回收烟气中的水蒸气成本投入低、水分回收量大

同时可有效缓解烟囱腐蚀问题

有较好的应用前景。

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