Effect of MgO promoter on Ru/γ-Al2O3 catalysts for tricyclopentadiene hydrogenation

被引：2
作者：
Park, Youri [1 ]
Ku, Huiji [1 ]
An, Jae-Yong [1 ]
Han, Jeongsik [2 ]
Shin, Chae-Ho [3 ]
Jeon, Jong-Ki [1 ]
机构：
[1] Kongju Natl Univ, Dept Chem Engn, Cheonan 31080, South Korea
[2] Agcy Def Dev, Daejeon 34186, South Korea
[3] Chungbuk Natl Univ, Dept Chem Engn, Cheongju 28644, South Korea
来源：
CATALYSIS TODAY | 2020年 / 352卷
关键词：
MgO promoter; Ru/gamma-Al2O3; catalyst; Tricyclopentadiene; Hydrogenation; Tetrhydrotricyclopentadiene; Recyclable catalysts; DICYCLOPENTADIENE; CYCLOPENTADIENE; OLIGOMERIZATION; ISOMERIZATION; COMPLEXES; EVOLUTION; KINETICS; SIZE;
D O I：
10.1016/j.cattod.2020.01.003
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The objective of this study is to elucidate the effects of MgO promotors on the catalytic physico-chemical properties of Ru/gamma-Al2O3 catalysts and the activity during the tricyclopentadiene (TCPD) hydrogenation reaction. Ru/gamma-Al2O3 and Ru-MgO/gamma-Al2O3 catalysts were produced by means of a coprecipitation method and formed in a bead type. The specific surface area of the regenerated Ru-MgO/gamma-Al2O3 catalyst is much larger than that of the regenerated Ru/gamma-Al2O3 catalyst. It was confirmed that the addition of MgO has the effect of alleviating the decrease of the specific surface area during the repetitive regeneration procedure. The addition of MgO had no significant effect on the reducibility of the Ru/gamma-Al2O3 catalyst. The results of XRD, CO chemisorption and TEM imagery show that the addition of MgO to the Ru/gamma-Al2O3 catalyst has the effect of decreasing the mobility of Ru atoms during repetitive regeneration at 650 degrees C. It was confirmed that the degree of catalyst deactivation during four repetitive regeneration trials was much lower than that with an unpromoted catalyst, likely because the addition of MgO prevented the sintering of Ru at the regeneration temperature of 650 degrees C. The Ru-MgO/gamma-Al2O3 catalyst is a possible candidate as a reusable catalyst for use during the TCPD hydrogenation reaction.
引用
收藏
页码：308 / 315
页数：8
相关论文
共 37 条
  • [1] [Anonymous], [No title captured], Patent No. 4401837
  • [2] Heterogeneous Catalyst Deactivation and Regeneration: A Review
    Argyle, Morris D.
    Bartholomew, Calvin H.
    [J]. CATALYSTS, 2015, 5 (01) : 145 - 269
  • [3] SINTERING KINETICS OF SUPPORTED METALS - NEW PERSPECTIVES FROM A UNIFYING GPLE TREATMENT
    BARTHOLOMEW, CH
    [J]. APPLIED CATALYSIS A-GENERAL, 1993, 107 (01) : 1 - 57
  • [4] CANNELL LG, 1977, Patent No. 4059644
  • [5] Revealing ruthenium and basicity synergetic effects in Ru-MgAl catalysts for isomerization of linoleic acid to conjugated linoleic acid
    Chen, Jiebo
    Zhang, Liaoyuan
    Zheng, Xinyu
    Zheng, Ying
    [J]. RSC ADVANCES, 2017, 7 (86): : 54747 - 54755
  • [6] Contreras J.L., V SHATOKHA SINTERING, P1
  • [7] Cruz JC, 2011, INT J ELECTROCHEM SC, V6, P6607
  • [8] Liquid fuels and propellants for aerospace propulsion: 1903-2003
    Edwards, T
    [J]. JOURNAL OF PROPULSION AND POWER, 2003, 19 (06) : 1089 - 1107
  • [9] German Randall M., 2016, Materials Science Forum, V835, P50, DOI 10.4028/www.scientific.net/MSF.835.50
  • [10] Model oxide supports for studies of catalyst sintering at elevated temperatures
    Goeke, Ronald S.
    Datye, Abhaya K.
    [J]. TOPICS IN CATALYSIS, 2007, 46 (1-2) : 3 - 9
1234