Nickel-Containing Catalysts of Ethylene Conversion for Synthesizing Motor Fuel Components and Light Alkenes

被引：0
|
作者：
Karpova, T. R. [1 ]
Lavrenov, A. V. [1 ]
Moiseenko, M. A. [1 ]
Buluchevskii, E. A. [1 ]
Gulyaeva, T. I. [1 ]
Arbuzov, A. B. [1 ]
机构：
[1] Russian Acad Sci, Ctr New Chem Technol, Boreskov Inst Catalysis, Siberian Branch, Omsk 644040, Russia
来源：
CATALYSIS IN INDUSTRY | 2024年 / 16卷 / 04期
关键词：
nickel-containing catalyst; borate-containing aluminum oxide; molybdenum-containing aluminum oxide; ethylene; propylene; oligomerization; metathesis; ALUMINA; OLIGOMERIZATION; ACID; PROPYLENE; MOLYBDENA; SYSTEM; SITES;
D O I：
10.1134/S2070050424700247
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Polyfunctional nickel-containing catalysts based on B2O3-Al2O3 and MoO3-Al2O3 oxide supports have been synthesized by sequential impregnation and studied in the conversion of ethylene into C5+ alkenes or propylene. The physicochemical properties of the prepared catalysts has been studied using X-ray diffraction analysis, IR spectroscopy, IR spectroscopy of adsorbed CO, UV-Visible diffuse reflectance spectroscopy (UV-Vis DRS), temperature-programmed reduction of hydrogen (H-2-TPR), and temperature-programmed desorption of ammonia (TPD-NH3). The most active catalysts of ethylene oligomerization are NiO/B2O3-Al2O3, where Ni2+ cations chemically bounded to the acidic support are formed. NiO/MoO3-Al2O3 activity in conversion of ethylene to propylene is provided by the presence on the surface of ethylene dimerization active sites, i.e., Ni2+ cations bounded with the support acidic sites, and active sites of metathesis based on monomolybdate species.
引用
收藏
页码：405 / 412
页数：8
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