摘要
为考察氨水细喷雾吸收CO2的能力,对喷雾塔中氨水细喷雾吸收CO2的反应过程进行了实验研究,测定了氨水吸收CO2的速率.实验结果表明,CO2的吸收速率随着氨水浓度、气体流量的升高而明显增大,随氨水流量升高也有所增加,CO2的吸收速率随CO2进口浓度的升高呈线性增加.当喷雾塔中温度低于40℃时,CO2的吸收速率随着塔内温度的升高而增加,当温度超过40℃时,CO2的吸收速率开始下降.实验结果表明,氨水吸收CO2的速率与CO2的浓度呈线性变化规律,即对CO2呈一级反应.
The absorption of CO2 into aqueous ammonia was studied in a spray column at atmospheric pressure. The specific flux per unit volume of CO2 absorption into aqueous ammonia was measured. Experimental results show that the absorption rate of CO2 increases remarkably with the ammonia concentration and the gas flow rate. The absorption rate of CO2 increases linearly with the CO2 inlet concentration. The experimental results also show that the temperature affects the absorption rate of CO2. When the temperature in the spray tower is lower than 40℃,the absorption rate increases with temperature,whereas when the temperature in the spray tower is higher than 40℃,the absorption rate decreases with increasing temperature.
出处
《环境科学学报》
CAS
CSCD
北大核心
2011年第2期381-387,共7页
Acta Scientiae Circumstantiae
基金
北京市科委科技计划课题(No.Z08040902950803)~~
关键词
CO2
氨水
喷雾
吸收
吸收速率
carbon dioxide
ammonia
spray
absorption
absorption rate
作者简介
曾庆（1984-），男，E—mail：zengqing1027@126．com；
通讯作者（责任作者），E-mail：guoyc@mail．tsinghua．edu，cn责任作者简介：郭印诚，清华大学工程力学系，博士，副教授，目前主要从事烟道气二氧化碳的捕集研究．
