| 摘要 |
<p>PCT No. PCT/EP91/01367 Sec. 371 Date Feb. 16, 1993 Sec. 102(e) Date Feb. 16, 1993 PCT Filed Jul. 20, 1991 PCT Pub. No. WO92/03224 PCT Pub. Date Mar. 5, 1992.In a method for purifying a carbon-containing adsorption medium used for treating flue gases within a flue gas scrubbing process the adsorption medium is introduced into an adsorption medium reactor where the adsorption medium adsorbs pollutants from the flue gas. The adsorption medium laden with pollutants is then removed from the adsorption medium reactor and conveyed into a thermal regeneration apparatus. At temperatures of 350 DEG to 650 DEG C. the pollutants are desorbed in the thermal regeneration apparatus, resulting in a desorption gas. In the desorbing step, pollutants in the form of heavy metals are vaporized and pollutants other than heavy metals are released from the adsorption medium and optionally decomposed. The desorption gas is then guided into an adsorption apparatus where the heavy metals are removed from the desorption gas by adsorption. The desorption gas substantially free of heavy metals is subjected to further treatment, preferably is reintroduced into the flue gas scrubbing process upstream of a flue gas scrubbing apparatus.</p> |
