【摘要】 叔丁胺基乙氧基乙醇（TBEE）是一种选择性吸收H₂S的新型空间位阻胺类脱硫剂，研究二甘醇（DEG）和叔丁胺（TBA）的直接还原胺化工艺路线制备TBEE具有重要的学术意义和经济价值。本工作制备了一种Ni_xCu_y/Al₂O₃非均相催化剂，对其活性组分与负载比例进行筛选，得到最优的Ni、Cu元素质量比为3:2。将Ni₃Cu₂/Al₂O₃用于催化DEG还原胺化反应，并对该反应的工艺条件进行了优化。结果表明，在200℃、催化剂质量为1.0 g、原料胺醇物质的量之比为2:1、H₂压力为1.0 MPa的条件下，DEG在3 h内可以达到77.2%的转化率，TBEE收率可以达到67.2%。最后，对DEG还原胺化反应机理与动力学进行研究，该研究结果为TBEE的工业化生产提供了理论依据。更多还原

【Abstract】 2-（2-Tert-butylaminoethoxy）ethanol（TBEE） is a new sterically hindered amine desulfurizer that selectively absorbs H₂S. Studying on the direct reductive amination process of diethylene glycol（DEG） and tert-butylamine（TBA） to prepare TBEE has important academic significance and economic value. In this work, Ni_x Cu_y/Al₂O₃ heterogeneous catalyst was prepared, the active components and loading ratio were screened, resulting in the optimal Ni and Cu element mass ratio was obtained as 3:2. The Ni₃ Cu₂/Al₂O₃ was used for the catalytic reduction amination of DEG, and the process conditions for this reaction were optimized. Experimental results showed that under the conditions of 200 ℃, catalyst mass of 1.0 g, raw material amine to alcohol molar ratio of 2:1, and H₂ pressure of 1.0 MPa, the DEG conversion reached 77.2% within 3 h, with a TBEE yield of 67.2%. Finally, the study on the mechanisms and kinetics of the reductive amination reaction of DEG was carried out, which provided certain reference significance for the industrialization of TBEE.更多还原