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首页> 外文会议>International Conference on Advances in Energy Systems and Environmental Engineering >Influence of ammonia on wet-limestone flue gas desulfurization process from coal-based power plant
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Influence of ammonia on wet-limestone flue gas desulfurization process from coal-based power plant

机译：氨对煤基电厂湿石灰石烟气脱硫过程的影响

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The paper presents data concerning the influence of ammonia on wet flue gas desulfurization (WFGD) absorber. Paper presents preliminary results of an industrial scale study on WFGD absorber, that collects flue gases from four boilers with total flue gas flow capacity of the WFGD equal to 1 500 000 Nm~3/h. Each boiler is equipped with selective non-catalytic reduction (SNCR) with urea injection. It was shown, that ammonia present in the flue gas upstream the WFGD increases the pH of absorption slurry, impacting the desulphurization process. In addition, analysis of particulate matter upstream and downstream the absorber shows an increase of the concentration of ammonium species in the particulate matter about 14 times, as average. Moreover, a non-optimized denitrification process can cause a high NH_4~+ concentration in the absorption slurry (up to 768 mg/L) and raw wastewater (up to 891 mg/L).
机译：本文提出了关于氨对湿烟气脱硫（WFGD）吸收剂的影响的数据。论文提出了对WFGD吸收剂的工业规模研究的初步结果，从四个锅炉中收集烟气，总烟气流量的WFGD等于1 500 000nm〜3 / h。每个锅炉配备有尿素注射的选择性非催化还原（SNCR）。结果表明，在烟气上游存在于WFGD中的氨水增加，增加吸收浆料的pH，影响脱硫过程。此外，吸收器上游和下游的颗粒物质分析显示颗粒物质中铵物质浓度的增加约14倍，平均值。此外，非优化的脱氮过程可引起吸收浆料（高达768mg / L）和原废水（高达891mg / L）的高NH_4〜+浓度。

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