Modeling and simulation of an improved ammonia-based desulfurization process for Claus tail gas treatment
Modeling and simulation of an improved ammonia-based desulfurization process for Claus tail gas treatment
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克劳斯尾气处理改进氨法脱硫工艺的建模与仿真
DOI：
10.1039/c7ra02343j
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发表时间：
2017
期刊：
影响因子：
3.9
通讯作者：
Zhao-Tie Liu
中科院分区：
文献类型：
--
作者：
Yuyin Tang;Yang Gao;Dan Liu;Fenglian Zhang;Siqiu Qu;Zhengping Hao;Xin Zhang;Zhao-Tie Liu
提出了一种改进的氨基脱硫工艺，即利用克劳斯尾气产生的热量浓缩产生的过量NH4HSO3，然后在克劳斯炉内分解浓缩的NH4HSO3回收SO2。此外，使用商业软件Aspen Plus对该过程进行了建模和模拟。对氨基脱硫模型的特性进行了验证，并与实验结果进行了比较。此外，系统中的水保持了平衡，因此不需要额外的水。在水平衡条件下，对不同运行条件下系统的脱硫率进行了预测。该模型对新工艺的脱硫性能进行了可靠的预测，有利于实际工业应用。
An improved ammonia-based desulfurization technology was proposed, in which the produced excess NH4HSO3 was concentrated by using the heat from the Claus tail gas and then SO2 was recovered by decomposing the concentrated NH4HSO3 in the Claus furnace. Furthermore, the process was modeled and simulated using the commercial software Aspen Plus. The characteristics of the ammonia-based desulfurization model were validated and compared with experimental results. Moreover, the water balance in the system was maintained, therefore, no extra water was required. Under the water balance condition, the SO2 removal performance in the system was predicted with various operating conditions. The model exhibited a reliable prediction of the desulfurization performance of the innovative process, which will be favorable for actual industrial application.