Co改性Ru/γ-Al_(2)O_(3)催化加氢制备1,2-环己烷二甲酸二异壬酯  

Co-modified Ru/γ-Al_(2)O_(3) Catalyzed Hydrogenation to Prepare Diisononyl 1,2-cyclohexanedicarboxylate

作　　者：钱俊峰[1] 吴中[1] 钟兆雅 何明阳[1] 陈群[1] QIAN Junfeng;WU Zhong;ZHONG Zhaoya;HE Mingyang;CHEN Qun(United Chemical Reaction Engineering Research Institute,Changzhou University Branch,Changzhou University,Changzhou 213164,China)

机构地区：[1]常州大学,联合化学反应工程研究所常州大学分所,江苏常州213164

出　　处：《化学反应工程与工艺》2021年第2期139-146,共8页Chemical Reaction Engineering and Technology

摘　　要：研究了Co改性的Ru/γ-Al_(2)O_(3)催化剂在邻苯二甲酸二异壬酯(DINP)催化加氢制备1,2-环己烷二甲酸二异壬酯(DINCH)的反应性能,并采用N2低温吸附、X射线衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)、H2程序升温还原(H2-TPR)、H2程序升温脱附(H2-TPD)和原子发射光谱(ICP)对催化剂进行表征。结果表明:Co与Ru的协同作用使得Ru/γ-Al_(2)O_(3)催化剂的活性增加。当Ru负载量为载体质量的1%,Co为载体质量的0.5%,反应压力为2 MPa、温度为120℃、转速为600 r/min、反应时间为5 h,催化DINP制备DINCH,DINCH选择性达100%,收率为99.4%。催化剂重复使用6次,产物DINCH收率都能维持在99%以上,表明该催化剂在催化DINP加氢制备DINCH中有较好的稳定性。Catalytic hydrogenation of diisononyl phthalate(DINP)to diisononyl 1,2-cyclohexanedicarboxylate(DINCH)over Co-modified Ru/γ-Al_(2)O_(3)was studied.The catalysts were characterized by low-temperature nitrogen adsorption-desorption technique,X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscope(TEM),H2 temperature-programmed reduction(H2-TPR),H2 temperatureprogrammed desorption(H2-TPD)and inductively coupled plasma(ICP).The results showed that the synergistic effect of Co and Ru increased the activity of Ru/γ-Al_(2)O_(3)catalyst.The catalyst exhibited better performance in the case that the catalyst containing 1%Ru and 0.5%Co.Under the conditions of reaction pressure 2 MPa,temperature 120℃,stirring speed 600 r/min and reaction time 5 h,the selectivity of DINCH and yield of DINCH reached 100%and 99.4%,respectively.Even after six cycles,the yield of DINCH maintained above 99%,which indicated that the catalyst showed good stability for the hydrogenation of DINP to DINCH.

关 键 词：邻苯二甲酸二异壬酯 环己烷二甲酸二异壬酯 Ru-Co/γ-Al_(2)O_(3) 催化加氢 

分 类 号：O643.38[理学—物理化学]