| 内循环多级喷动脱硫塔内颗粒浓度 |
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| 引用本文： | 高建民,秦裕琨,李广生,高继慧,王帅,吴少华.内循环多级喷动脱硫塔内颗粒浓度[J].化工学报,2006,57(10):2297-2302. |
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| 作者姓名： | 高建民 秦裕琨 李广生 高继慧 王帅 吴少华 |
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| 作者单位： | 哈尔滨工业大学能源科学与工程学院，黑龙江 哈尔滨 150001 |
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| 摘 要： | 引言 烟气循环流化床脱硫技术中,脱硫灰再循环已成为必备工艺.众多研究表明脱硫灰再循环对烟气脱硫过程是有益的,表现在以下方面1-5]:脱硫灰再循环为浆液提供润湿载体,增加反应有效表面积;脱硫灰中没有反应完全的脱硫剂可以重新溶解在表面浆液中,同时颗粒物本身连续发生碰撞、磨蚀、不断去除表面反应产物,暴露出新表面,提高了脱硫剂利用率;脱硫灰颗粒存在,对脱硫塔内气、固、液三相之间流动起扰动作用,强化传质过程,同时减轻脱硫塔内壁面结垢的可能性,使得近绝热饱和温距可以进一步降低有利于提高脱硫效率.
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| 关 键 词： | 内循环 多级喷动 颗粒 浓度 |
| 文章编号： | 0438-1157（2006）10-2297-06 |
| 收稿时间： | 10 24 2005 12:00AM |
| 修稿时间： | 2005-10-242006-04-04 |
Particle concentration in internally circulating and multistage spouted desulfurization tower |
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| GAO Jianmin,QIN Yukun,LI Guangsheng,GAO Jihui,WANG Shuai,WU Shaohua.Particle concentration in internally circulating and multistage spouted desulfurization tower[J].Journal of Chemical Industry and Engineering(China),2006,57(10):2297-2302. |
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| Authors: | GAO Jianmin QIN Yukun LI Guangsheng GAO Jihui WANG Shuai WU Shaohua |
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| Affiliation: | School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China |
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| Abstract: | To increase particle concentration and reinforce internal circulation in circulating fluidized bed-flue gas desulfurizer(CFB-FGD),an internally circulating and multistage spouted tower was presented and an experimental installation was established.By changing inlet gas velocity,particle concentration and distance from tower-top, the particle concentration and resistance force were predicted by using the collapse bed method.An internal concentration scale was obtained.A numerical study was conducted to simulate particle flow.Predicted particle concentration,resistance force and other parameters agreed with experimental data.The conclusions are good reference for engineering application. |
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| Keywords: | internal circulation multistage spouted particle concentration |
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