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Experimental studies of SO2 absorption in the sieve-plate wet FGD absorber

机译：筛板湿式烟气脱硫塔吸收SO2的实验研究

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摘要

Limestone-gypsum wet FGD is the maximum widely applied FGD technology in the world at present,sieveplate absorber is one of the critical tower in wet FGD processes. This article provides a study on the features of flow field distribution,resistance and desulfurization of sieve-plate FGD absorber through Laboratory-scale experimental FGD system.It is shown that the flow field distribution in sieve-plate FGD absorber is homogeneous, the deviation of velocity distribution of flue gas is 0.4-0.58,whereas the standard deviation of empty absorber is 0.99.In comparison with empty absorber, the pressure loss of sieve-plate absorber increased 30-160%,and following the decreasing of void ratio, the pressure loss of sieve-plate absorber has a tendency of increasing.While the void ratio of sieve-plate is decreasing from 44.3% to 31.5%, the pressure loss increased 16.1-27.6%. The desulfurization efficiency of sieve-plate absorber presents increase first and decrease afterwards following the increasing of void ratio of sieve-plate.In comparison with empty absorber, the desulfurization efficiency increased 822.89%.And under the condition of same sieveplate, the desulfurization efficiency is 3-8% better when the distribution of sieve-plate pores is in square than that in triangle.
机译：石灰石-石膏湿法烟气脱硫是目前世界上应用最广泛的烟气脱硫技术，筛板吸收塔是湿法烟气脱硫工艺中的关键塔之一。本文通过实验室规模的实验烟气脱硫系统对筛板烟气脱硫塔的流场分布，阻力和脱硫特性进行了研究，结果表明：筛板烟气脱硫塔的流场分布是均匀的。烟气的速度分布为0.4-0.58，空吸收器的标准偏差为0.99。与空吸收器相比，筛板吸收器的压力损失增加了30-160％，并且随着空隙率的降低，压力筛板吸收器的损失有增加的趋势。虽然筛板的空隙率从44.3％降低到31.5％，但压力损失却增加了16.1-27.6％。筛板吸收塔的脱硫效率随着筛板空隙率的增加先增加后减小，与空塔相比，脱硫效率提高了822.89％。在相同筛板的条件下，脱硫效率为筛板孔的分布在正方形处比在三角形中好3-8％。

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  • 来源
  • 会议地点 Harbin(CN)
  • 作者

    Sui Jiancai; Deng Jiajia; Zhang Liqiang; Ma Chunyuan;

  • 作者单位

    National Engineering Laboratory for Coal-Fired Pollutants Emission Reduction,School of Energy and Power Engineering,Shandong University,Jinan 250061,China CPI Yuanda Environmental-Protection Engineering CO.LTD.,Chongqing,401122,China;

    CPI Yuanda Environmental-Protection Engineering CO.LTD.,Chongqing,401122,China;

    National Engineering Laboratory for Coal-Fired Pollutants Emission Reduction,School of Energy and Power Engineering,Shandong University,Jinan 250061,China;

    National Engineering Laboratory for Coal-Fired ollutants Emission Reduction,School of Energy and Power Engineering,Shandong University,Jinan 250061,China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境与清洁生产（无污染技术）;
  • 关键词

    Wet FGD; Sieve-Plate; Absorber; coal combustion;

    机译：湿法烟气脱硫；筛板；吸收剂；煤燃烧;

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