氨法烟气脱硫工艺过程模拟与优化Simulation and optimization of ammonia-based flue gas desulfurization process
史永永,李海洋,张慧,林倩
摘要(Abstract):
为了进一步研究氨法烟气脱硫工艺过程,以非平衡级传质理论为依据,利用化工流程模拟软件Aspen Plus建立填料吸收塔脱除SO2过程的数值计算模型,分析和优化操作参数对脱硫效果的影响,模拟结果与文献值吻合较好。模型计算结果表明:脱硫率随着吸收液pH值和液气比的增大而增大;随着进口SO2质量浓度和进口烟气流量的增大而降低,并得出吸收液pH值及液气比在氨法烟气脱硫效率影响因素中占主要位置。所建立的氨法烟气脱硫工艺过程模型准确合理,模拟结果可为脱硫系统实际运行调节各操作参数对脱硫效果的影响提供参考和借鉴。
关键词(KeyWords): 烟气脱硫;氨法;吸收;数值模拟;优化
基金项目(Foundation): 国家“863”支撑项目(2011AA060803);; 贵州省绿色化工技术科技创新人才团队项目(黔科合人才团队[2009]4002)
作者(Author): 史永永,李海洋,张慧,林倩
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