He Dongbo Zhong Shengjun Deng Xufan

(Industrial Explosion Protection Institute(IEP1), Northeastern University)

Abstract

A study on reaction kinetics of maize, lycopodium and two kinds of bituminous dust layers are presented. The experiments are conducted using thermogravimetric analysis under different temperature, oxygen content of 0,2%,8%,20%,50% and 100% respectively and laminar flowcondition. The vapor composition of the samples under different temperature are analyzed by means of an infrared.As results of experiments, the models of oxidation and thermodecomposition of the four types of dust layers are established and some of mechanism of oxidation of dust layers are described.

Keywords：dust; kinetics of reaction; oxidation; thermodecomposition

DOI：10.13732/j.issn.1008-5548.1997.01.004