赵全忠,赵祯霞,邹昀,韦藤幼,童张法

• 1:广西大学 化学化工学院，广西资源化工应用新技术高校重点实验室，广西 南宁 530004

摘要(Abstract)：

在固定床反应器中研究了Cu-Ni/γ-Al₂O₃催化剂上二甘醇氨化脱水合成吗啉的本征动力学。通过增大进料气体速度和减小催化剂粒径，分别消除内、外扩散的影响；在温度483~513 K，体积空速1.73~4.32 s^-1，压力1.7 MPa，氨醇摩尔比大于10的条件下，考察了温度与进料空速对二甘醇转化率的影响；使用幂律模型描述反应动力学过程，并拟合实验数据估算模型参数。结果表明：当体积空速大于4.32 s^-1，催化剂粒径40~80目，内、外扩散影响均已消除；二甘醇氨化合成吗啉的反应活化能为43.97 kJ·mol^-1，对二甘醇的反应级数为1.45。二甘醇反应速率实验值与模型计算值比较和统计检验结果表明模型是合适的。

关键词(KeyWords)： 吗啉;Cu-Ni/γ-Al₂O₃催化剂;本征动力学;固定床反应器;幂律模型

Abstract:

Keywords:

基金项目(Foundation): 广西自然科学基金重点项目（2017GXNSFDA198047）；广西自然科学基金创新团队项目（2016GXNSFGA380003）；广西石化资源加工及过程强化技术重点实验室主任基金（2017Z001，2017Z010）。

作者(Author): 赵全忠,赵祯霞,邹昀,韦藤幼,童张法

DOI: 10.3969/j.issn.1003-9015.2018.00.004

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