Patent ID: 7722704

Claim:
A nitrogen oxide removal equipment for removing nitrogen oxide contained in gas, comprising: a nitrogen oxide absorption means provided with an absorption unit for removing nitrogen oxide contained in said gas by passing said gas through a solid absorbent layers, said absorption unit comprising: an absorbent storage part surrounded by a boundary wall of a storage part, a bottom panel of a storage part, and an upper portion of an outlet side, and provided with said solid absorbent layers therein; and a plurality of low-profile unit bodies being placed vertically and adjacently and being provided with a gas rectification part in which gas is caused to pass through said solid absorbent layers, and said unit body comprising: an intake side surface; an outlet side surface disposed opposite to said intake side surface and provided with said upper portion of said outlet side and a lower portion of an outlet side; said storage part boundary wall disposed between said intake side surface and said outlet side surface; said bottom panel of said storage part disposed horizontally from a lower end of said boundary wall of said storage part to said upper portion of said outlet side; a bottom of said rectification part disposed below a boundary of an outlet side, said boundary including a boundary between said upper portion of said outlet side and said lower portion of said outlet side; a bottom panel of said intake side extending from said intake side surface to said bottom of said rectification part; and a bottom panel of said outlet side extending from said boundary of said outlet side to said bottom of said rectification part, wherein a ratio of A:B is in a range of 1:1 to 1:10, where A represents a distance from a boundary defined by said bottom of said rectification part and said bottom panel extending to said outlet side to said bottom panel of said storage part while B represents a distance from said boundary to said outlet side surface, said boundary being placed near to said intake side surface while said bottom of said rectification part extending so as to be aligned to said boundary wall of said storage part of another unit body at said intake side.