| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the power consumption of an induction fan by a method in which, when the ventilation gas of roads, tunnels, or the like, is purified, an apparatus installation space in the vertical direction to a gas current is decreased and the pressure loss of an adsorbent-packed layer is reduced. SOLUTION: In this purification apparatus, an exhaust gas containing NOx is passed through an adsorbent-packed layer in order to remove NOx in the exhaust gas. The layer is divided into two, the divided adsorbent-packed layers 24, 26 are arranged in order that the end face on the gas inlet side is slanted at 20-70 degrees to the axis 12 of an apparatus main body 18 and arranged to be symmetric to the axis 12, and a gas passage, which is divided so as to pass the exhaust gas from the outside to inside of the layers 24, 26, is installed.</p> |
