均匀设计法在镍系催化SBS加氢体系中的应用

用环烷酸镍(Ni)/三异丁基铝 (Al)催化剂对SBS进行溶液均相加氢反应。研究了SBS质量分数、环烷酸镍质量分数、n_Al/n_Ni、反应氢气压力、反应温度等工艺条件对SBS加氢度的影响。同时利用均匀设计法模拟并验证了优化的工艺条件：SBS质量浓度为80g/L、环烷酸镍的质量分数为 0.167%、n_Al/n_Ni为6、氢气压力为2.5MPa、反应温度为45℃、反应时间为135min。优化工艺参数下的SEBS用溴碘法测其加氢度，用紫外光谱法测苯乙烯的变化量，结果表明碳碳双键加氢度达到97.1%，而苯环加氢度为3.1% ,说明了该催化剂具有高活性和高选择性。

Application of uniform design to SBS hydrogenation by nickel catalysts

The system of nickel naphthenateNi(Ⅱ)]-triisobutyl aluminiumAl(Ⅲ)] as the homogeneous SBS solution hydrogenation's catalyst were studied for SBS hydrogenation. The hydrogenation technological factors including the ρ_SBS, w_Ni, n_Al/n_Ni , hydrogen pressure and reaction temperature were researched to find the reaction condition of SBS hydrogenation. The better hydrogenation technological referents were obtained by the uniform design with ρ_SBS=80g/L, w_Ni=0.167%, n_Al/n_Ni =6, p_H2= 2.5 MPa, T=45℃ and t=135 min. Underthis technological referents, the hydrogenation degree of unsaturated double bonds were found to be 97.1% by bromine-iodometric technique but the styrene blocks were hydrogenated only 3.1% by UV analysis. It indicates that the system of the catalyst has high activity and high selectivity to SBS hydrogenation.