Ethylene oligomerization from diluted stream over Ni-containing catalysts

Refinery off-gas often contain important amount of ethylene and nowadays are 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 ethyl...

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Bibliographic Details
Published inIndustrial & engineering chemistry research Vol. 59
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 08.01.2020
Subjects
Catalysis
Chemical Sciences
H2O
oligomerization
refinery off-gas
hydroge
Ni-AlSiO2
Ni-AlSBA-15
CO
ethylene
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Summary:Refinery off-gas often contain important amount of ethylene and nowadays are 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.
ISSN:0888-5885
1520-5045
DOI:10.1021/acs.iecr.9b05576