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    • 23. 发明专利
    • Encapsulated reducing agent for denitrification
    • 减压剂减水剂
    • JP2007007616A
    • 2007-01-18
    • JP2005194546
    • 2005-07-04
    • Ime Sogo Kenkyusho:Kk株式会社アイエムイー総合研究所
    • HAYASHI JUNICHIROSHIMOKAWABE MASAHIDEMIYAMOTO MASAYASUKOYAMA HITOSHITAMAGAWA JUNNOSUKETANIHATA KAZUKISHIGEE SEIICHIMATSUNAGA KOUTETSUMURATA TOSHIAKIAOKI SHIGEMICHI
    • B01D53/94C01B21/12F01N3/08
    • PROBLEM TO BE SOLVED: To provide an encapsulated reducing agent for denitrification, first, highly efficient with superior ammonia generation capacity; second, a compact apparatus with reduced supply cost; third, suppressed in lowering of temperature of exhaust gas; fourth, applicable to exhaust gas of various tempearture regions; fifth, causing no solidification; and sixth, with superior production cost performance. SOLUTION: This reducing agent 4 for denitrification is formed of powdery ammonium carbamate as individual capsule units. The agent is quantitatively introduced into exhaust gas 2, to generate ammonium gas reducing nitrogen oxides in the exhaust gas 2. In a typical example, the agent has a little amount of water sectionedly contained besides ammonium carbamate, is introduced to the upstream side of a reduction catalyst 10 for a denitrification reaction. Thus, by hydrolysis reaction of ammonium carbamate by heating, ammonia gas, carbon dioxide gas and steam are generated and diffused to break the capsule. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供用于脱氮的封装的还原剂,首先,具有优异的氨生成能力的高效率; 二是减少供应成本的小型设备; 第三,抑制排气温度的降低; 第四,适用于各种气温区域的废气; 第五,不凝固; 第六,具有优越的生产成本表现。 解决方案:用于脱氮的还原剂4由作为单个胶囊单元的粉末状氨基甲酸铵形成。 将该试剂定量引入废气2中,以在排气2中产生还原氮氧化物的氨气。在典型的实例中,除了氨基甲酸铵之外,试剂除了少量的水分含有,被引入到 还原催化剂10用于脱氮反应。 因此,通过加热氨基甲酸铵的水解反应,产生氨气,二氧化碳气体和蒸汽并扩散以破坏胶囊。 版权所有(C)2007,JPO&INPIT