| 膜法解吸CO_2吸收富液 |
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| 引用本文： | 张卫风,马伟春,邱雪霏,吴世东.膜法解吸CO_2吸收富液[J].化工环保,2018,38(2):213-216. |
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| 作者姓名： | 张卫风 马伟春 邱雪霏 吴世东 |
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| 作者单位： | 1. 华东交通大学 土木建筑学院,江西 南昌 330013;2. 江苏瑞帆环保装备股份有限公司,江苏 南通 226200 |
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| 基金项目： | 江西省科技计划项目（20151BBG70021） |
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| 摘 要： | 采用中空纤维膜接触器(FMC)作为解吸装置,对吸收了CO_2的N-甲基二乙醇胺(MDEA)溶液(富液)进行膜法解吸实验。考察了CO_2负荷、解吸温度、解吸压力、富液流速和N_2吹扫流量对CO_2解吸率的影响。结果表明,富液中CO_2负荷越大、解吸温度越高、解吸压力越低、富液流速越大、N_2吹扫流量越大,则CO_2解吸率越高。综合考虑,本实验优选的工艺条件为解吸温度45~65℃,解吸压力10~30 k Pa,富液流速0.08 m/s,N_2吹扫流量200 m L/min。
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| 关 键 词： | 二氧化碳 中空纤维膜 富液 解吸率 |
| 收稿时间： | 2017-06-13 |
Desorption of CO2 from rich solution by membrane method |
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| Zhang Weifeng,Ma Weichun,Qiu Xuefei,Wu Shidong.Desorption of CO2 from rich solution by membrane method[J].Environmental Protection of Chemical Industry,2018,38(2):213-216. |
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| Authors: | Zhang Weifeng Ma Weichun Qiu Xuefei Wu Shidong |
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| Institution: | 1. School of Civil Engineering and Architecture,East China Jiao Tong University,Nanchang Jiangxi 330013,China;2. Jiangsu Ruifan Environmental Protection Equipment Limited Company,Nantong Jiangsu 226200,China |
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| Abstract: | An experiment for desorption of CO2 from the CO2-absorbed N-methyldiethanolamine （MDEA）solution （rich solution）by membrane method was carried out in a hollow fiber membrane contactor （FMC）. The effects of CO2 loading,desorption temperature,desorption pressure,rich solution flow rate and N2 sweeping flux on CO2 desorption rate were investigated. The results showed that the CO2 desorption rate was increased with the increase of CO2 loading in the rich solution,desorption temperature,rich solution flow rate,N2 sweeping flux and the decrease of desorption pressure. Considering comprehensively,the optimal process conditions for this experiment were as follows：desorption temperature 45-65 ℃,desorption pressure 10-30 kPa,rich solution flow rate 0.08 m/s,and N2 sweeping flux 200 mL/min. |
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| Keywords: | carbon dioxide hollow fiber membrane rich solution desorption rate |
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