| 摘要 |
<p>The application discloses that a high efficiency of abatement of acid gas emissions in an effluent gas of an industrial or commercial manufacturing or treatment process can be achieved by passing the effluent through a particulate chromatographic mass of nepheline syenite, a naturally occurring ore, on which a certain amount of water is adsorbed. The wetting of, and the consequent adsorption of water by, the ore may be effected by passing a stream of humid air through the mass of particles either prior to or concurrently with the arrival of the acid gas-laden effluent thereat, or alternatively by passing the effluent through a humidifying zone prior to its coming in contact with the ore. An additional advantage found is that particulate emissions, if present, are also abated. In lieu of nepheline syenite, pot line alumina or activated alumina, in either case pretreated with an aqueous solution of sodium hydroxide or sodium carbonate, may be used as the adsorbent medium. This abstract is not to be taken as a complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernible only by reference to and from the entire disclosure.</p> |
