合成气一步法制二甲醚的固定床有效导热系数  

Effective Thermal Conductivity Coefficient of Fixed-Bed for Dimethyl Ether Direct Synthesis from Syngas

作　　者：陈大胜[1,2] 张海涛[1] 应卫勇[1] 房鼎业[1] 

机构地区：[1]华东理工大学大型工业反应器工程教育部工程研究中心,化学工程联合国家重点实验室,上海200237 [2]上海吴泾化工有限公司,上海200241

出　　处：《华东理工大学学报（自然科学版）》2011年第2期139-144,共6页Journal of East China University of Science and Technology

基　　金：国家科技支撑计划(2006BAE02B02)

摘　　要：当温度为180~320℃时,采用稳态法测定出气体静止时分别装填甲醇合成、甲醇脱水及混合催化剂的固定床有效导热系数范围依次为0.238 0~0.286 0,0.206 0~0.286 2和0.209 2~0.275 3。将实验数据与前人提出的几个常用的固定床有效导热系数关联式的计算值进行了比较,其中Kunii关联式的计算值与实验值吻合程度最好,关联式的计算值与3组实验值的最大误差分别为4.96%,3.63%,3.60%,标准偏差分别为0.78%,0.62%,0.63%。该模型可用于计算气体静止时合成气一步法制二甲醚体系的固定床有效导热系数。The ranges of effective thermal conductivity coefficients of stagnant fixed-bed,which packed with methanol synthesis catalyst,dehydration catalyst and mixed catalyst were measured as 0.238 0-（0.286 0,）（0.206 0）-0.286 2 and 0.209 2-0.275 3,respectively,using the steady state method from （180 °C） to（320 °C）.Compared the experimental results with the calculated data from some prediction formula,Kunii equation gave the best mathing results.The maximum deviation and standard deviation of the calculated value of the Kunii formula with three experimental results are 4.96%,3.63%,3.60% and 0.78%,（0.62%）,0.63%,respectively.It is concluded that the formula proposed by Kunii was suitable to calculate the effective thermal conductivity coefficient of fixed bed for dimethyl ether synthesis from syngas.

关 键 词：合成气 二甲醚 固定床 有效导热系数 

分 类 号：TB302.1[一般工业技术—材料科学与工程]