彩63

循环流化床干法脱硫工艺
相关产品
  • 石灰石-石膏湿法脱硫技术
  • 钠-钙双碱法烟气脱硫技术
  • 氨法脱硫技术
  • 石灰石-石膏湿法烟气脱硫
  • 名称:

    循环流化床干法脱硫工艺

    描述:循环流化床干法脱硫工艺是指应用粉状或粒状吸收剂、吸附剂或催化剂来脱除烟气中的SO2。
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    循环流化床干法脱硫工艺 详细说明

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    (三)脱硫副产品的综合利用
    彩63 该工艺一般采用干态的消石灰粉作为吸收剂,在特殊情况下也可采用其它对二氧化硫气体有吸收能力的干粉或浆液作吸收剂。

    该工艺产生的脱硫副产品呈干粉状,其化学组成与喷雾干燥工艺的副产品相类似,主要是CaSO3,CaSO4以及未完全反应的吸收剂(Ca(OH)2)等构成。脱硫副产品中是否含有大量的飞灰,则取决于脱硫系统前是否安装了前级除尘器。脱硫副产品的处置方法也与喷雾干燥的副产品基本相同。该工艺的副产品在加水后会硬化,硬化后的屈服强度可达15~18N/mm2,压实密度为l.28g/cm2,而其渗透率则与黏土类似,约为3×10-11。由此可见该副产品的强度与混凝土接近,很适合作矿井回填、道路基础。如能进一步加以   ,可成为良好的建材工业的原料。在德国,该工艺的副产品己用于混凝上掺合料和高速公路两侧的隔音墙。
     

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