The feasibility of oxidizing elemental mercury in coal combustion flue gas using catalytic material impregnated onto fabric filters was explored. TiO_2 Au/TiO_2, and Pd/Al_2O_3 were studied based on promising results in previous research. Several fabric coating methods were investigated to determine the best way to load a filter. A spray coat method was found to have the highest initial loading and had the lowest losses after simulated pulse-jet cleaning. The oxidation performance of the catalyst-coated filters was tested using a simulated flue gas in a bench-scale reactor under conditions similar to those found in a baghouse. Au/TiO_2 and Pd/AI_2O_3 were effective, yielding mercury oxidation ranges of 40-60% and 50-80%, respectively. A 19 kW research combustor equipped with a baghouse was used to fire a range of coals and further test the performance of Pd/Al_2O_3. Results obtained warrant further development of this technique as a means of mercury pollution control.
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机译：探索了使用浸渍在织物过滤器上的催化材料氧化煤燃烧烟气中元素汞的可行性。基于先前研究的有希望的结果，研究了TiO_2 Au / TiO_2和Pd / Al_2O_3。对几种织物涂层方法进行了研究，以确定装载过滤器的最佳方法。在模拟脉冲喷射清洁后，发现喷涂方法具有最高的初始负荷，损失最小。使用模拟烟道气在台式规模反应器中，在类似于集尘室的条件下，测试了涂覆有催化剂的过滤器的氧化性能。 Au / TiO_2和Pd / Al_2O_3有效，汞氧化范围分别为40-60％和50-80％。配备布袋除尘器的19 kW研究燃烧室用于燃烧多种煤，并进一步测试Pd / Al_2O_3的性能。获得的结果证明了该技术作为汞污染控制手段的进一步发展。
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