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首页> 外文学位 >Full scale calcium bromide injection with subsequent mercury oxidation and removal within wet flue gas desulphurization system: Experience at a 700 MW coal-fired power facility.
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Full scale calcium bromide injection with subsequent mercury oxidation and removal within wet flue gas desulphurization system: Experience at a 700 MW coal-fired power facility.

机译：在湿法烟气脱硫系统中进行全规模溴化钙注入并随后进行汞氧化和去除：在700 MW的燃煤电厂中的经验。

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摘要

he Environmental Protection Agency promulgated the Mercury and Air Toxics Standards rule, which requires that existing power plants reduce mercury emissions to meet an emission rate of 1.2 lb/TBtu on a 30-day rolling average and that new plants meet a 0.0002 lb/GWHr emission rate. This translates to mercury removals greater than 90% for existing units and greater than 99% for new units. Current state-of-the-art technology for the control of mercury emissions uses activated carbon injected upstream of a fabric filter, a costly proposition. For example, a fabric filter, if not already available, would require a ;This research consisted of investigating calcium bromide addition onto PRB coal as a method of increasing flue gas halogen concentration. The treated coal was combusted in a 700 MW boiler and the subsequent treated flue gas was introduced into a wet FGD. Short-term parametric and an 83-day longer-term tests were completed to determine the ability of calcium bromine to oxidize mercury and to study the removal of the mercury in a wet FGD. The research goal was to show that calcium bromine addition to PRB coal was a viable approach for meeting the Mercury and Air Toxics Standards rule for existing boilers.;The use of calcium bromide injection as an alternative to activated carbon approaches could save millions of dollars. The technology application described herein has the potential to reduce compliance cost by
机译：环境保护署颁布了《汞和空气有毒物质标准》规则，该规则要求现有发电厂在30天的滚动平均值上减少汞排放，以达到1.2磅/ TBtu的排放率，新工厂必须达到0.0002磅/ GWHr的排放率。这意味着现有设备的汞去除量大于90％，而新设备的汞去除量大于99％。当前控制汞排放的最先进技术是在织物过滤器上游注入活性炭，这是一项昂贵的提议。例如，如果还没有可用的织物过滤器，则将需要；该研究包括研究将溴化钙添加到PRB煤中作为增加烟道气卤素浓度的方法。经处理的煤在700 MW锅炉中燃烧，随后将经处理的烟道气引入湿法烟气脱硫中。完成短期参数和83天的长期测试，以确定溴化钙氧化汞的能力并研究湿法烟气脱硫中汞的去除。该研究目标是证明，将PRB煤中添加溴化钙是满足现有锅炉的《汞和空气有毒物质标准》规则的可行方法。;使用溴化钙注入替代活性炭方法可以节省数百万美元。本文所述的技术应用有可能通过以下方式降低合规成本：

著录项

  • 作者

    Berry, Mark Simpson.;

  • 作者单位

    The University of Alabama at Birmingham.;

  • 授予单位 The University of Alabama at Birmingham.;
  • 学科 Chemistry Inorganic.;Engineering Materials Science.;Engineering Environmental.
  • 学位 Ph.D.
  • 年度 2012
  • 页码 254 p.
  • 总页数 254
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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