公开(公告)号：EP2517788B1

公开(公告)日：2017-11-22

申请号：EP11190440.5

申请日：2011-11-24

申请人： King Abdulaziz City for Science & Technology (KACST)

发明人： Bagabas, Abdulaziz A. ,  Mostafa, Mohamed Mokhtar Mohamed ,  Al-Rabiah, Abdulrahman A. ,  Akhmedov, Vagif Malik

IPC分类号： B01J21/18 ,  B01J23/60 ,  B01J37/03 ,  B01J37/04 ,  C07C45/73

CPC分类号： B01J23/60 ,  B01J21/18 ,  B01J37/031 ,  B01J37/04

摘要： Ruthenium/activated charcoal (Ru/AC) treated with synthesized nano -ZnO ( n -ZnO) is used for the first time as a novel composite catalyst in one-step self-condensation of acetone (DMK) to methyl isobutyl ketone in the gas phase. The DMK self-condensation was performed under atmospheric pressure, in a tubular glass fixed-bed microreactor, under DMK and H 2 continuous flow at temperature in the range of 523 to 648 K. Addition of n -ZnO to Ru/AC resulted in a pronounced increase in the degree of dispersion of Ru and in the acidic/basic sites concentration ratio. For the one-step synthesis of MIBK at 623 K, the composite catalyst with 2.5 wt% Ru loading was an active and selective bi-functional composite catalyst with balanced acid/base and hydrogenation properties. At 523 K, isopropyl alcohol, product of DMK-direct hydrogenation, was produced in high selectivity for instantly investigated composite catalyst. The catalytic performance depended on the composite catalyst identity, DMK flow rate, H 2 flow rate, and reaction temperature.

公开(公告)号：EP2517788A1

公开(公告)日：2012-10-31

申请号：EP11190440.5

申请日：2011-11-24

申请人： King Abdulaziz City for Science & Technology (KACST)

发明人： Bagabas, Abdulaziz A. ,  Mostafa, Mohamed Mokhtar Mohamed ,  Al-Rabiah, Abdulrahman A. ,  Akhmedov, Vagif Malik

IPC分类号： B01J21/18 ,  B01J23/60 ,  B01J37/03 ,  B01J37/04 ,  C07C45/73

CPC分类号： B01J23/60 ,  B01J21/18 ,  B01J37/031 ,  B01J37/04

摘要： Ruthenium/activated charcoal (Ru/AC) treated with synthesized nano -ZnO ( n -ZnO) is used for the first time as a novel composite catalyst in one-step self-condensation of acetone (DMK) to methyl isobutyl ketone in the gas phase. The DMK self-condensation was performed under atmospheric pressure, in a tubular glass fixed-bed microreactor, under DMK and H 2 continuous flow at temperature in the range of 523 to 648 K. Addition of n -ZnO to Ru/AC resulted in a pronounced increase in the degree of dispersion of Ru and in the acidic/basic sites concentration ratio. For the one-step synthesis of MIBK at 623 K, the composite catalyst with 2.5 wt% Ru loading was an active and selective bi-functional composite catalyst with balanced acid/base and hydrogenation properties. At 523 K, isopropyl alcohol, product of DMK-direct hydrogenation, was produced in high selectivity for instantly investigated composite catalyst. The catalytic performance depended on the composite catalyst identity, DMK flow rate, H 2 flow rate, and reaction temperature.

摘要翻译： 首次使用用合成纳米-ZnO（n-ZnO）处理的钌/活性炭（Ru / AC）作为新型复合催化剂，在丙酮（DMK）与气体中甲基异丁基酮的一步自缩合 相。 DMK自缩合在大气压下，在管状玻璃固定床微反应器中，在DMK和H 2连续流动下，在523至648K的温度范围内进行。向Ru / AC加入n-ZnO导致 Ru的分散度和酸性/碱性部位浓度比显着增加。 对于623K的MIBK的一步合成，具有2.5wt％Ru负载的复合催化剂是具有平衡的酸/碱和氢化性质的活性和选择性双功能复合催化剂。 在523K时，以立即研究的复合催化剂的高选择性生产异丙醇，DMK直接氢化产物。 催化性能取决于复合催化剂的同一性，DMK流量，H 2流量和反应温度。