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本文采用SUPERTRAPP软件对压力从3~6MPa,温度从400K~800K,裂解度从1~25%的工况下正癸烷裂解所产生的混合物的密度、导热系数、黏度和定压比热容进行计算。结果发现密度在所有温度和压力下随着裂解度的增大而逐步减小;导热系数在压力为3~6MPa、温度小于600K时导热系数随裂解度的增大而逐步减小;黏度在所有温度和压力下随着裂解度的增大而逐步减小;定压比热容在压力大于4MPa、温度为400K、500K、800K时定压比热容与裂解度的关系基本保持不变。
In this paper, SUPERTRAPP software was used to calculate the density, thermal conductivity, viscosity and specific heat capacity of the mixture produced by n-decane cracking under the pressure from 3 ~ 6MPa, the temperature from 400K ~ 800K and the degree of cracking from 1 ~ 25%. The results show that the density decreases gradually with the increase of the degree of cracking under all temperature and pressure. The thermal conductivity decreases gradually with the increase of the degree of cracking when the pressure is 3 ~ 6MPa and the temperature is less than 600K. Temperature and pressure gradually decrease with the increase of the degree of cracking. The relationship between the specific heat capacity and the degree of pyrolysis of the constant pressure specific heat capacity at a pressure of more than 4MPa, a temperature of 400K, 500K, 800K remains basically unchanged.