| 摘要 |
<p>PURPOSE:To reduce the amount of NOX in a relative sense and make it possible to miniaturize the denitration apparatus by providing a means that returns to a burning apparatus the gas which is condensed in a gas separator to contain rich NOX and a means that discharges out of the system the gas which contains lean NOX released from the gas separator. CONSTITUTION:The waste gas preheats in an air preheater 12 the air which is supplied through an air filter, and is then introduced to an NOX separating and recovering apparatus A, where much NOX is removed. The waste gas is then introduced through a fan 20 and a preheater 13 to a desulfurizing apparatus 14. The desulfurized waste gas is heated in the preheater 13 to eventually discharged from a smoke stack 15.</p> |
