Ethylene Oligomerization from Diluted Stream over Ni-Containing Heterogeneous Catalysts

Refinery off-gas often contains important amounts of ethylene and nowadays is burned as fuel gas. A simple way to valorize this wasted ethylene is to convert it into more easily transportable liquid products, like oligomers C4+. This is the first study focusing on the oligomerization of diluted ethy...

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Published inIndustrial & engineering chemistry research Vol. 59; no. 5; pp. 1746 - 1752
Main Authors Andrei, Radu Dorin, Borodina, Elena, Minoux, Delphine, Nesterenko, Nikolai, Dath, Jean-Pierre, Cammarano, Claudia, Hulea, Vasile
Format Journal Article
LanguageEnglish
Published American Chemical Society 05.02.2020
Subjects
carbon monoxide
catalysts
ethylene
hydrogen
liquids
oligomerization
temperature
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Summary:Refinery off-gas often contains important amounts of ethylene and nowadays is burned as fuel gas. A simple way to valorize this wasted ethylene is to convert it into more easily transportable liquid products, like oligomers C4+. This is the first study focusing on the oligomerization of diluted ethylene, conducted at moderate pressure and temperature. The first objective was to provide new efficient heterogeneous catalysts and a process able to convert diluted ethylene into heavier olefins. Thus, two catalysts, Ni-AlSiO2 and Ni-AlSBA-15, were prepared, characterized, and evaluated in the oligomerization process at 250 °C and 15 bar. The second aim was to evaluate the effect/role on the catalysts of some potential contaminants, such as H2O, CO, and H2, which are usually present in the refinery off-gas.
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ISSN:0888-5885
1520-5045
1520-5045
DOI:10.1021/acs.iecr.9b05576