会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 10. 发明授权
    • Method for removing NOx
    • NOx去除方法
    • US06423283B1
    • 2002-07-23
    • US09623797
    • 2000-09-08
    • Masayoshi IchikiMasaki AkiyamaAtsushi Fukuju
    • Masayoshi IchikiMasaki AkiyamaAtsushi Fukuju
    • B01J800
    • B01D53/8625Y02A50/2345Y02C20/10
    • The invention provides a process for removing NOx which is free of impairment in denitration efficiency at a reaction temperature of up to 300° C. even when the component molar ratio of NOx in the gas to be treated is NO2>NO. For use in removing NOx from the gas to be treated and containing NO2 in a larger amount than NO, that is, having a (NO2)/NOx ratio in excess of 0.5, by selective reduction with use of ammonia serving as a main reducing agent in the presence of a denitration catalyst, the process of the invention for removing NOx comprises adding to the denitration reaction system a substance for removing an excess of oxygen accumulating on catalyst active sites by selectively reducing the oxygen at not higher than 300° C., for example, at 300 to 150° C., in other words, a substance which reacts with the excess of oxygen on the catalyst active sites and becomes oxidized at not higher than 300° C.
    • 本发明提供一种除去在300℃以下的反应温度下脱硝效率不受损害的NOx的方法,即使待处理气体中的NOx的成分摩尔比为NO2> NO。 用于从待处理的气体中除去NO含量大于NO的NO 2,即NO 2 / NOx比超过0.5时,通过使用氨作为主要还原剂进行选择性还原 在脱硝催化剂的存在下,本发明除去NOx的方法包括向脱硝反应体系中加入一种物质,用于通过选择性地将氧气在不高于300℃下还原,除去积聚在催化剂活性位上的过量氧, 例如,在300〜150℃,换句话说,与催化剂活性部位上的过量氧反应并在不高于300℃下氧化的物质。