远红外辐射加热催化床净化有机蒸汽的实验研究

Organic Vapour Abatement with Catalytie Bed Heated by Far-Infrared Radiation

一、 前言 催化燃烧法以净化效果好、相对节能、操作简便及装置本体安全等优点而成为国内外有机蒸气净化的重要手段。现有的装置一般都采用预热气体的工艺,这又限制了节能的程度和造成了催化剂高温工作的条件。

In order to solve the current problems in catalytic incineration devices for organic vapour abatement thoroughly, an experiment has been done, compared with the existing technology, the innovative design is that far-infrared radiation is used for heating catalytic bed only, not heating vapour and catalytic bed both. The results show that ignition point can be considerably reduced and preheating time shortened. For benzene vapour, the efficiencies at low inlet temperature are not less than those obtained by existing technology if temperatures of catalytic beds are same. For exhaust gas, when temperature is about 170℃, high efficiency (97%) under the experimental conditions has been obtained by using obtained by using honey-comb Pt catalyst. (See pp. 38-42)