Department of Diesel NOx Removal Process by Using Natural-Resource-and Energy-Assisted Ammonia Synthesis

如果我们使用成熟的V_2O_5-TiO_2催化剂，即使在高氧分压下，氨也能选择性地与NOx反应。本研究的目的是利用自然资源（h2o、空气）和能源（太阳能）生产氢和氮，并合成氨，然后用于分解NOx。以上工艺组合在一处为一套，不携带或储存有毒氨，可用于城市地区甚至偏远地区。1)利用太阳能电池成功实现了水电解制氢。2) 1 mol空气和2.8mol氢气在90℃左右通过Pt/Al_2O_3催化剂，生成0.8mol （N_2+3H_2）气体和0.4mol H_2O。3)采用新开发的Ru- ba / ac等几种Ru催化剂制氨研究了Ru/CeO_2.4)在不同固体酸性物质上的吸附行为。5)用吸附系统排出的0.15% NH_3，在V_2O_5/TiO_2上与含0.15% NO和5% O_2的气体（模型废气）反应。6)成功地积累了上述工艺的数据，并对系统的性质和规模进行了讨论。

Ammonia is unique in reacting selectively with NOx even under high oxygen partial pressure if we use the well developed V_2O_5-TiO_2 catalyst. The purpose of this research is to produce hydrogen and nitrogen from natural resources (H_2O,Air) and energy (solar) and is to synthesize ammonia which is thereafter used to decompose NOx. The above processes are combined in a same place as a set so as not to carry or to store poisonous ammonia and can be used in the arban area or even the remote area.1) Hydrogen was successfully obtained from water electrolysis by using solar battery.2) One mole of air and 2.8mole of hydrogen were carafully passed through Pt/Al_2O_3 catalyst at around 90ﾟC to produce 0.8mole of (N_2+3H_2) gas (and 0.4mol H_2O).3) Ammonia was produced using several Ru catalysts newly developed including Ru-Ba/A.C.and Ru/CeO_2.4) Adsorption behavior on various solid acid materials were studied.5) 0.15% NO and 5% O_2 containing gas (model exhaust gas) was reacted on V_2O_5/TiO_2 with 0.15% NH_3 evolved from adsorption system.6) Data of the above processes were successfully accumulated and the property of the system and size were discussed.