石灰石-石膏湿法喷淋脱硫模型研究Modelling of Wet Limestone-Gypsum Flue Gas Desulfurization System in Spray Tower
祝杰,吴振元,叶世超,郑毅骏,杨云峰,白洁
摘要(Abstract):
分析了石灰石-石膏湿法脱硫过程,提出了合理假设,建立了喷淋塔内液滴的运动微分方程、液相离子的平衡关系以及气液传质过程的数学模型,考察了不同操作参数对脱硫率的影响。结果表明,脱硫率随吸收液p H值及喷淋密度的增大而增大,随液滴直径、烟气流速、入口SO2浓度及温度的增大而减小,其中液滴直径、吸收液p H值及喷淋密度对脱硫率的影响较显著,温度对脱硫率影响不大;脱硫率的模型计算值与实际值吻合较好,该模型可为石灰石-石膏湿法喷淋脱硫系统优化提供参考。
关键词(KeyWords): 喷淋塔;湿法脱硫;模型;液滴直径;脱硫率
基金项目(Foundation):
作者(Author): 祝杰,吴振元,叶世超,郑毅骏,杨云峰,白洁
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