Method for treating ammonia.

摘要

There is here disclosed a method of reducing or removing ammonia from the exhaust gas of a dry denitration process which uses ammonia at an elected temperature as a reducing agent, characterised by contacting the ammonia-containing exhaust gas at a temperature of 200 DEG C or less in an adsorption zone with an ammonia-adsorbent material whereby to adsorb ammonia in/on the adsorbent material, desorbing the adsorbed ammonia at a temperature of at least 300 DEG C and decomposing the desorbed ammonia in a decomposition zone by contact thereof with an ammonia-decomposition catalyst.