The inorganic components contained in fuel coal of thermal power plants

in the combustion process

produce inorganic matters in gas

liquid

and solid forms

commonly leading to poisoning and failure of SCR catalyst

resulting in blockage of SCR system etc..Directing against the lignite coal produced in eastern area of Inner Mongolian Region

a SCR catalyst boasting independent intellectural property right has been developed

and midterm test and study being carried out.Result show that the newly developed SCR catalyst has good denitrification efficiency and stronger anti-poisoning ability

however

the denitrification efficiency and the poisoning speed of catalyst are closely related to the design of catalyst proper and the system operation.