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    • 4. 发明申请
    • Method for reducing NOx during combustion of coal in a burner
    • 在燃烧器中燃烧煤时减少NOx的方法
    • US20060228282A1
    • 2006-10-12
    • US11129833
    • 2005-05-16
    • Bing ZhouSukesh ParasherJeffrey HareN. HardingStephanie BlackKenneth Johnson
    • Bing ZhouSukesh ParasherJeffrey HareN. HardingStephanie BlackKenneth Johnson
    • B01D53/86
    • A24B15/28A24B15/286A24B15/288B01D53/8625
    • An organically complexed nanocatalyst composition is applied to or mixed with coal prior to or upon introducing the coal into a coal burner in order to catalyze the removal of coal nitrogen from the coal and its conversion into nitrogen gas prior to combustion of the coal. This leads to reduced NOx production during coal combustion. The nanocatalyst compositions include a nanoparticle catalyst that is made using a dispersing agent. The dispersing agent includes at least one functional group such as a hydroxyl, a carboxyl, a carbonyl, an amine, an amide, a nitrile, a nitrogen having a free lone pair of electrons, an amino acid, a thiol, a sulfonic acid, a sulfonyl halide, and an. acyl halide. The dispersing agent forms stable, dispersed, nano-sized catalyst particles. The catalyst composition can be formed as a stable suspension to facilitate storage, transportation and application of the catalyst nanoparticles to a coal material. The catalyst composition can be applied before or after pulverizing the coal material or it may be injected directly into the coal burner together with pulverized coal.
    • 在将煤引入煤燃烧器之前或之后,将有机络合的纳米催化剂组合物施用于煤或与煤混合,以便在煤燃烧之前催化从煤中除去煤氮并转化成氮气。 这导致煤燃烧期间的NOx产生减少。 纳米催化剂组合物包括使用分散剂制备的纳米颗粒催化剂。 分散剂包括至少一种官能团,例如羟基,羧基,羰基,胺,酰胺,腈,具有游离的一对电子的氮,氨基酸,硫醇,磺酸, 磺酰卤,和。 酰卤。 分散剂形成稳定的,分散的纳米尺寸的催化剂颗粒。 催化剂组合物可以形成为稳定的悬浮液,以便于将催化剂纳米颗粒储存,运输和应用于煤材料。 催化剂组合物可以在粉碎煤材之前或之后施用,或者可以与粉煤一起直接注入煤燃烧器。