公开(公告)号：US06630116B2

公开(公告)日：2003-10-07

申请号：US09917615

申请日：2001-07-25

申请人： Uthamalinga Balachandran ,  Arun C. Bose

发明人： Uthamalinga Balachandran ,  Arun C. Bose

IPC分类号： C01B304

CPC分类号： B01D53/8634 ,  B01D53/228

摘要： An apparatus and method for decomposing NH3. A fluid containing NH3 is passed in contact with a tubular membrane that is a homogeneous mixture of a ceramic and a first metal, with the ceramic being selected from one or more of a cerate having the formula of M′Ce1-x M″3-&dgr;, zirconates having the formula M′Zr1-xM″O3-&dgr;, stannates having the formula M′Sn1-xM′O3-&dgr;, where M′ is a group IIA metal, M″ is a dopant metal of one or more of Ca, Y, Yb, In, Nd, Gd or mixtures thereof and &dgr; is a variable depending on the concentration of dopant and is in the range of from 0.001 to 0.5, the first metal is a group VIII or group IB element selected from the group consisting of Pt, Ag, Pd, Fe, Co, Cr, Mn, V, Ni, Au, Cu, Rh, Ru and mixtures thereof. The tubular membrane has a catalytic metal on the side thereof in contact with the fluid containing NH3 which is effective to cause NH3 to decompose to N2 and H2. When the H2 contacts the membrane H+ ions are formed which pass through the membrane driving the NH3 decomposition toward completion.

摘要翻译： 一种用于分解NH3的装置和方法。 含有NH 3的流体与陶瓷和第一金属的均匀混合物的管状膜接触，陶瓷选自一种或多种具有式M'Ce1-x M'3的铈酸盐 具有式M'Zr1-xM'O3-δ的锆酸盐，具有式M'Sn1-xM'O3-δ的锡酸盐，其中M'是IIA族金属，M“是一种掺杂剂金属 或更多的Ca，Y，Yb，In，Nd，Gd或其混合物，并且Δ是根据掺杂剂的浓度而变化的，并且在0.001至0.5的范围内，第一金属是VIII族或1B族元素 选自Pt，Ag，Pd，Fe，Co，Cr，Mn，V，Ni，Au，Cu，Rh，Ru及其混合物。 管状膜的侧面具有与含有NH 3的流体接触的催化金属，其有效地使NH 3分解成N 2和H 2。 当H 2接触膜时，形成H +离子，其通过膜驱动NH 3分解完成。