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首页> 外文会议>Clearwater clean coal conference;International technical conference on clean energy >Demonstration of the Co-firing of Modified Biomass with Pulverized Coal at the Hunter Plant
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Demonstration of the Co-firing of Modified Biomass with Pulverized Coal at the Hunter Plant

机译：亨特工厂演示改性生物质与煤粉共燃

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The use of biomass to displace some fraction of coal in electric power production (biomass co-firing) has been viewed as one option for reducing the net carbon emissions from a coal-fired power plant. One barrier to the utilization of biomass for power generation is the ease of integration with existing fuel handling systems. Pre-treating the biomass (e.g., torrefaction or steam explosion processes, especially combined with pelletizing) provides a means for addressing this issue. The pretreated biomass fuels have the potential for direct use in existing coal mills with only minor modifications. In addition, the pretreatment of the biomass increases its energy density such that the fuel can be more consistent with the coal feedstock. The University of Utah and Brigham Young University are partnering with Pacificorp to stage a full-scale demonstration of biomass co-firing at the Hunter Unit 3 500 MW power plant, located near Castle Dale, Utah. Two different types of modified biomass will be produced by local suppliers from the same woody biomass feedstock, and these will consist of both torrefied and steam-exploded biomass pellets. The overall program includes the following components: 1) milling trials to assess the impact of co-feeding modified biomass and coal on pulverizer operation; 2) pilot-scale firing of the coal and biomass blends at 1.5 MWth scale; 3) production of 600 tons each of torrefied and steam-exploded biomass pellets, and 4) full-scale demonstration of the firing of coal and biomass blends in a 500 MW_e pulverized-coal power plant.
机译：在发电（生物质共燃）中，使用生物质代替部分煤炭已被视为减少燃煤电厂净碳排放的一种选择。利用生物质发电的一个障碍是与现有燃料处理系统集成的难易程度。对生物质进行预处理（例如，焙干或蒸汽爆炸过程，尤其是与造粒相结合）提供了解决此问题的方法。经过预处理的生物质燃料仅需稍作改动就可以直接用于现有的磨煤机。另外，生物质的预处理增加了其能量密度，使得燃料可以与煤原料更加一致。犹他大学和杨百翰大学正在与Pacificorp合作，在犹他州卡斯尔戴尔附近的Hunter Unit 3 500 MW发电厂进行生物质共燃的全面示范。本地供应商将使用相同的木质生物质原料生产两种不同类型的改性生物质，这些生物质既包括焙烤过的又经过蒸汽爆破的生物质颗粒。总体计划包括以下组成部分：1）碾磨试验，以评估共进料的改性生物质和煤对粉碎机运行的影响; 2）以1.5兆瓦时规模进行煤和生物质混合物的中试燃烧; 3）分别生产600吨经过焙烧和蒸汽爆破的生物质颗粒，以及4）在500 MW_e煤粉发电厂中进行煤炭和生物质混合物燃烧的全面示范。

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