Kinetic and mechanistic insights into Ni-AlKIT-6 catalyzed ethylene oligomerization

文献情報

出版日 2021-10-11

DOI 10.1039/D1RE00258A

インパクトファクター 4.239

著者

Remi Beucher, Vasile Hulea, Claudia Cammarano

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要旨

A kinetic study of the ethylene oligomerization on a mesoporous 2 wt% Ni-AlKIT-6 was performed in a fixed bed flow reactor. The temperature ranged from 40 to 120 °C, the inlet ethylene partial pressure from 0.1 to 2.0 MPa and the space velocity (WHSV) was between 37 and 240 h−1. The main products identified at low ethylene conversion were n-butenes (90%) and hexenes (9%). A coordination–insertion mechanism (Cossee–Arlman) was proposed to explain the formation of these primary products. An activation energy of 15.2 kJ mol−1 and a global kinetic order of 1.28 were determined. The experimental data suggest that the kinetically limiting step is the insertion of ethylene into the metal–alkyl bond.

掲載誌

Reaction Chemistry & Engineering

CiteScore: 0

自己引用率: 8.8%

年間論文数: 284

Reaction Chemistry & Engineering is an interdisciplinary journal reporting cutting-edge research focused on enhancing the understanding and efficiency of reactions. Reaction engineering leverages the interface where fundamental molecular chemistry meets chemical engineering and technology. Challenges in chemistry can be overcome by the application of new technologies, while engineers may find improved solutions for process development from the latest developments in reaction chemistry. Reaction Chemistry & Engineering is a unique forum for researchers whose interests span the broad areas of chemical engineering and chemical sciences to come together in solving problems of importance to wider society. All papers should be written to be approachable by readers across the engineering and chemical sciences. Papers that consider multiple scales, from the laboratory up to and including plant scale, are particularly encouraged.

Kinetic and mechanistic insights into Ni-AlKIT-6 catalyzed ethylene oligomerization

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