[1]陶敏,金保升,仲兆平,等.循环流化床烟气脱硫多层喷水数学模型[J].东南大学学报(自然科学版),2010,40(1):144-148.[doi:10.3969/j.issn.1001-0505.2010.01.027]
 Tao Min,Jin Baosheng,Zhong Zhaoping,et al.Mathematical model for multi-level humidifying of the circulating fluidized bed-flue gas desulfurization system[J].Journal of Southeast University (Natural Science Edition),2010,40(1):144-148.[doi:10.3969/j.issn.1001-0505.2010.01.027]
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循环流化床烟气脱硫多层喷水数学模型()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
40
期数:
2010年第1期
页码:
144-148
栏目:
环境科学与工程
出版日期:
2010-01-20

文章信息/Info

Title:
Mathematical model for multi-level humidifying of the circulating fluidized bed-flue gas desulfurization system
作者:
陶敏 金保升 仲兆平 杨亚平
东南大学能源与环境学院,南京 210096
Author(s):
Tao Min Jin Baosheng Zhong Zhaoping Yang Yaping
School of Energy and Environment, Southeast University, Nanjing 210096, China
关键词:
循环流化床 烟气脱硫 数学模型 微元分析 多层喷水
Keywords:
circulating fluidized bed flue gas desulfurization mathematical model infinitesimal analysis multi-level humidifying
分类号:
X51
DOI:
10.3969/j.issn.1001-0505.2010.01.027
摘要:
为了研究循环流化床烟气脱硫过程中多层喷水对系统温度、湿度及气体组分轴向变化的影响,采用微元分析的方法,建立了包括液滴蒸发、收缩核、脱硫反应等的一维稳态数学模型,并将计算结果与实验数据进行比较.研究结果表明:采用多层喷水能够使塔内温度场的轴向变化更加平缓,并使出口烟气温度比单层喷水时降低3~6℃; 由于液滴蒸发过程变缓而使脱硫效率提高了7%~11%; 塔内液滴总质量是影响脱硫效率的重要因素,该参数对于喷水系统设计和参数选择具有重要的参考价值.
Abstract:
A detailed model for flue gas desulfurization by spray-dry absorption with calcium hydro agent is presented. The model refers to a steady state one-dimensional model by means of infinitesimal analysis, incorporating with the model of droplet evaporation, shrinking core and sulfur absorption. The trends of moisture, temperature field, SO2 and vapor concentration along the axial direction are calculated and the results are compared with the experimental data. It is shown that applying multi-level humidifying, the temperature field in the riser gets more tempered and the outlet temperature is 3 to 6℃ lower comparing to 1-level humidifying; As the droplet evaporation gets slower, the desulfurization efficiency increases by 7% to 11%; The total droplet mass in the riser is found to be very important factor for the sulfur removal efficiency and it is of reference value for the design and operation of the humidifying system.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 陶敏(1983—),男,博士生; 金保升(联系人),男,教授,博士生导师,bsjin2007@seu.edu.cn.
引文格式: 陶敏,金保升,仲兆平,等.循环流化床烟气脱硫多层喷水数学模型[J]. 东南大学学报:自然科学版,2010,40(1):144-148.[doi:10.3969/j.issn. 1001-0505.2010.01.027]
更新日期/Last Update: 2010-01-20