Abstract: One-dimensional, heterogeneous model for transient state is used for simulating steady-state temperature profiles of adiabatic fixed-bed reactors. Since the length of the high-temperature zone is determined by the temperature profile, it is essential to investigate factors affecting temperature profile. This paper discusses the influences of heat conduction of the bed, of the gas and of the reactor wall. An example is given for making explanation clearer. Results show that for experimental reactors the effect of heat conduction through reactor wall is by no means negligible; therefore, this effect should be taken into account during reactor scale-up.

摘要： 本文运用一维非均相动态模型,研究了绝热固定床反应器床内定态温度分布问题.由于床内温度分布直接关系到反应器内高温区长度,因而对温度分布影响因素的研究甚为重要.本研究分别阐明了催化剂层、气体及器壁导热对床层温度分布的影响,并以实例予以说明.研究表明,实验型反应器器壁导热的影响不容忽视,因而将实验数据用于放大时必须考虑器壁导热的影响.