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Numerical Simulations of SCR DeNOx System for a 660MW coal-fired power station

机译：660MW燃煤电站SCR脱硝系统的数值模拟

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Aimed at the selective catalytic reduction (SCR) DeNOx system of a 660 MW coal-fired power station, which is limited by low denitrification efficiency, large ammonia consumption and over-high ammonia escape rate, numerical simulations were conducted by employing STAR-CCM+ (CFD tool). The simulations results revealed the problems existed in the SCR DeNOx system. Aimed at limitations of the target SCR DeNOx system, factors affecting the denitrification performance of SCR, including the structural parameters and ammonia injected by the ammonia nozzles, were optimized. Under the optimized operational conditions, the denitrification efficiency of the SCR system was enhanced, while the ammonia escape rate was reduced below 3ppm. This study serves as references for optimization and modification of SCR systems.
机译：针对某660 MW燃煤电厂的选择性催化还原（SCR）DeNOx系统受到反硝化效率低，氨消耗量大和氨逃逸率过高的局限性，采用STAR-CCM +（ CFD工具）。仿真结果表明，SCR DeNOx系统存在问题。针对目标SCR脱硝系统的局限性，优化了影响SCR脱硝性能的因素，包括结构参数和氨喷嘴注入的氨。在最佳运行条件下，SCR系统的反硝化效率得到提高，而氨的逸出率降低到3ppm以下。这项研究可为SCR系统的优化和修改提供参考。

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