蒸汽相变促进燃烧源PM2.5凝并长大的研究现状及展望

Prospect and advances in growth of PM2.5 from combustion by vapor condensation

燃烧过程排放的粉尘是大气中PM2.5的重要来源,目前控制PM2.5排放的主要途径是设置预处理设施使PM2.5凝并成较大颗粒后脱除。蒸汽相变是促进燃烧源PM2.5凝并长大的有效措施,对应用蒸汽相变作为脱除超细微粒的预调节措施的国内外研究现状作了详细评述,指出今后应加强对PM2.5微粒核化凝结长大特性及实用的PM2.5控制新技术的研究。

The dust from combustion is the main anthropogenic sources that contribute to ambient PM2.5, the main process for controlling the discharge of PM2.5 is that PM2.5 must be first enlarged by means of a preconditioning installation and then removed with the conventional separation system, Condensation of water vapor on PM2.5 surfaces has been proved to be one of the most promising techniques to promote PM2.5 growth. The advances in research of vapor condensation as a preconditioning technique for the removal of PM2.5 at home and aboard were reviewed, It was pointed out that the studies on the characteristics of the condensational growth of PM2.5 and the development of new applied technologies for controlling its discharge ought to be strengthened.