| 摘要 |
<p>Method of the carbon-containing adsorption agent cleaning is applied in a reactor for the flue gas cleaning. In this process, an adsorption agent is removed and subjected-in a special thermal regeneration plant-to a desorption process for pollutant separation and breakdown. A pollutant-rich desorption gas is subjected to further processing. During the desorption process, heavy metals are evaporated and other pollutants are freed or decomposed at a temperature ranging from 350 to 650 degrees Celsius without direct fuel gas supply. The pollutant-rich desorption gas is directly supplied into the adsorption plant wherein the heavy metals and an exhausted gas is separated from the adsorption plant. The exhausted gas, which is essentially mercury-free, is reintroduced back into a further flue cleaning process. The device for the above-described process consists of a thermal desorption plant (10) which is arranged behind an outlet (7) of the adsorption agent exiting from a reactor (1) for flue gas processing. The thermal desorption plant (10) is provided with a mechanism (11) for heating up the adsorption agent without the direct fuel gas supply. The device further consists of an outlet device (12), for removal of already processed adsorption agent, and an exhaust (13) of gas and steam for exhausting of a pollutant-rich desorption gas. The exhaust (13) of gas and steam of the desorption plant (10) is connected with an adsorption plant (14). The adsorption plant (14) is manufactured for separating mercury out of the desorption gas.</p> |
