燃料与化工 ›› 2021, Vol. 52 ›› Issue (3): 36-38.

• 煤气净化与化学产品加工 • 上一篇    下一篇

活性炭脱硫脱硝两段式吸附塔喷氨结构仿真模拟研究

李超1  李旭东1  尹华1  孙刚森1  霍延中1  张平存2   

  1. 1.中冶焦耐(大连)工程技术有限公司, 大连116085; 2.唐山钢联焦化有限公司, 唐山063000
  • 出版日期:2021-05-23 发布日期:2021-07-08

Study on simulation of ammonia spray structure in two-stage absorber for DeSOx and DeNOx of waste flue gas by active carbon process

Li Chao1  Li Xudong1  Yin Hua1  Sun Gangsen1  Huo Yanzhong1  Zhang Pingcun2   

  1. 1.ACRE Coking & Refractory Engineering Consulting Corporation (Dalian),MCC,Dalian 116085,China;2.Tangsteel Meijin (Tangshan) Coal Chemical Industry Company Limited,Tangshan 063000,China
  • Online:2021-05-23 Published:2021-07-08

摘要:

以活性炭法脱硫脱硝两段式吸附塔喷氨结构为研究对象,依据小试实验及中试实验研究成果,采用CFD数值模拟方法,研究大差异流量-浓度焦炉烟道气与氨空混合气均匀混合及气流均布技术,通过调节氨空混合气供气方式及喷氨孔排布优化,提高喷氨管上方氨气分布的均匀性。

关键词: 活性炭法, 两段式吸附塔, 喷氨结构, 仿真模拟

Abstract:

In this paper,a study is conducted for simulation of ammonia spray structure in two-stage absorber for DeSOx and DeNOx of waste flue gas by active carbon process.Based on the results from pilot tests and by adopting CFD simulation,a new streamline technology is studied,i.e.a big range of flow rate-concentration waste flue gas is uniformly mixed with air-NH4 mass fraction and evenly distributed by regulating mixed fraction supply and optimizing ammonia nozzle arrangement so as to improve the uniformity of ammonia distribution above the nozzles.

Key words: Active carbon process, Two-stage absorber, Ammonia spray structure, Simulation

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