• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Challenges of Power Engineering and Environment >The Combination Control Techniques of the Pollutants Generated in the Coal-fired Power Plant
【24h】

The Combination Control Techniques of the Pollutants Generated in the Coal-fired Power Plant

机译：燃煤电厂产生污染物的联合控制技术

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

At present, environmental issues are coming to the forefront in all parts of the global with increasing public concern. Coal is one of the most important primary energies in this world. Some pollutants such as SO2, NOx, Hg and other harmful matters are yielded during coal combustion. In china, coal holds up to 70% of consumption of the primary energy, and most of the power stations mainly adopt coal as the energy source, which induces much deterioration of the environment. To develop effective air pollution control techniques for coal-fired boilers is very important. Till now, scientists all around the world have developed various methods to reduce air pollution caused by coal combustion. Although the environmental situation has ameliorated, the pollutant emissions have not been completely eliminated. Some pilot projects have demonstrated that it is not economical to remove pollutants separately. There are several advantages to remove air pollutants simultaneously in a whole system, such as simplifying the controlling system, improving the operation characteristics, reducing the operating cost and so on. Many ways have been reported to remove the SO2, NOx and Hg from the flue gas, however, the combination control of air pollutants is rarely investigated. Besides introducing the hazards of air pollutants, and some techniques about desulfurization, denitration and mercury control methods, the paper summarizes the method to design the experimental devices of combination control, and the reasons to determine the experimental program and to select the adsorbents. The combination control scheme recommended in this paper is that spraying CMA (calcium magnesium acetate) into the furnace and increasing humidity at the end of the flue gas duct to take off SO2, NOx and Hg<'2+ simultaneously, applying the adsorption device of impregnating the zeolite with activated manganese dioxide as adsorbents to adsorb mercury, and using bag-house to capture fly ash to remove mercury.
机译：当前，随着公众日益关注，环境问题在全球各地都已成为最重要的问题。煤炭是这个世界上最重要的主要能源之一。燃煤过程中会产生一些污染物，例如SO2，NOx，Hg和其他有害物质。在中国，煤炭占一次能源消耗的比例高达70％，并且大多数发电厂主要采用煤炭作为能源，这导致了环境的严重恶化。为燃煤锅炉开发有效的空气污染控制技术非常重要。迄今为止，世界各地的科学家已经开发出各种方法来减少由燃煤引起的空气污染。尽管环境状况有所改善，但污染物排放尚未完全消除。一些试点项目表明，单独去除污染物并不经济。在整个系统中同时去除空气污染物有几个优点，例如简化控制系统，改善运行特性，降低运行成本等。据报道，有许多方法可以从烟道气中去除SO2，NOx和Hg，但是，很少研究空气污染物的联合控制。除了介绍空气污染物的危害以及脱硫，脱硝和汞控制方法的一些技术外，本文还总结了组合控制实验装置的设计方法，以及确定实验方案和选择吸附剂的原因。本文推荐的组合控制方案是将CMA（醋酸钙镁）喷入炉中，并在烟气管道末端增加湿度，以同时去除SO2，NOx和Hg <'2+，并采用吸附装置。用活性二氧化锰作为吸附剂浸渍沸石以吸附汞，并使用集尘室收集飞灰以除去汞。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号