| 摘要 |
<p>A method for cleaning hot gas and optionally recovering energy therefrom. The gas is cooled in a first stage by saturating the gas with water and finely-divided cooling water is delivered to the gas in a second stage so as to cool the gas to a temperature of 5-20 °C, whereupon vapour present in the gas condenses and entrains therewith contaminants contained in the gas. The cooled gas is then led away and the heated water is cooled by heat exchange with a medium which may then be used for heating purposes, wherein after being cooled the water is returned to the first and/or the second stage as cooling water. An arrangement for carrying out the method includes an inlet passage (1), means (2) mounted in the passageway for delivering cooling water in a finely-divided state, a cooling chamber (4) which includes means (5) for delivering cooling water in a finely-divided state, a contaminant treatment container (12), an overflow (14), a pump (18), a heat exchanger (20), conduits (16, 17, 19, 22, 23, 24) and a gas outlet passage (9).</p> |
