Efficient Release of Ammonia from a Solid Ammonia Storage Medium
    10.
    发明申请
    Efficient Release of Ammonia from a Solid Ammonia Storage Medium 审中-公开
    从固体氨储存介质中高效释放氨

    公开(公告)号:US20100050615A1

    公开(公告)日:2010-03-04

    申请号:US12374448

    申请日:2007-07-19

    摘要: Solid metal ammine complexes are applied for safe and high-density storage of ammonia to be released for use as reducing agent in selective catalytic reduction of NOx in exhaust gases or as an energy carrier for fuel cell applications. The compositional formula of the metal ammine complexes is M(NH3)nXz, where Mz+ represents one or more metal ions capable of binding ammonia, X represents one or more anions, n is the coordination number (from 2 to 12), and z the valency of the metal ion (and thus the total number of compensating anion charges). Ammonia is released by controlled dosing of water into the storage container whereby ammonia is released because water replaces ammonia on the active sites capable of binding ammonia. Consequently, ammonia can be released without applying a normal thermal desorption of ammonia and the operating temperature of the system is reduced as well as the energy needed for releasing ammonia.

    摘要翻译: 应用固体金属氨络合物来安全和高密度地储存氨,以用作废气中NOx的选择性催化还原或作为燃料电池应用的能量载体的还原剂。 金属络合物的组成式为M(NH 3)n X z,其中M z +表示一种或多种能结合氨的金属离子,X表示一种或多种阴离子,n为配位数(2至12),z为 金属离子的化合价(因此补偿阴离子电荷的总数)。 氨通过控制计量的水释放到储存容器中而释放,由此氨释放出能够结合氨的活性位上的氨。 因此,可以释放氨,而不会对氨进行正常的热解吸,同时降低系统的工作温度以及释放氨所需的能量。