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Cited by 27Zeolite Catalysis and SynthesisPetroleum Processing and AnalysisAdvanced Combustion Engine Technologies

The DOI matches its Crossref record; 26 of the 27 references it cites were found in a registry or an index.

Production and fuel properties of iso-olefins with controlled molecular structure and obtained from butene oligomerization

Open access
Dagle, Vanessa Lebarbier, Lopez, Johnny Saavedra, Cooper, Alan, Luecke, Jon, Swita, Marie, Dagle, Robert A., Gaspar, Daniel·2020·Fuel
DOI 10.1016/j.fuel.2020.118147
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Abstract

Abstract The ability to control the molecular structure (e.g., degree of branching) of iso-olefins produced from oligomerizing light olefins is a valuable tool for tuning the final compositions of hydrocarbon fuels and targeting specific fuel properties. In this study, we demonstrated that the degree of branching of iso-olefins obtained from butene oligomerization can be controlled by tuning process conditions (i.e., temperature, weight hourly space velocity [WHSV], nature of butene feedstock) and by choosing the proper catalyst (i.e., Amberlyst-36 vs. Y/ZSM-22). We produced three types of iso-olefin mixtures: 1) a methyl-heptenes rich (74 wt%) mixture,2) dimethyl-hexenes rich (80–96 wt%) mixtures, and 3) highly branched (i.e., ≥3 methyl substitutions) iso-olefins rich (>50 wt%) mixtures. While dimethyl-hexenes are preferentially formed at lower temperatures (60–100 °C) and WHSV (i.e., 2 hr−1), methyl-heptenes are favorably produced at higher temperatures (>100 °C) and WHSVs (i.e., 7 hr−1) over Amberlyst-36. The use of either 1-butene or 2-butene as feedstock resulted in liquid products with similar branching because facile intramolecular isomerization occurs prior to oligomerization. The use of isobutylene feedstock forms a more branched olefin product. For each type of iso-olefins mixture, we determined fuel properties including research octane number (RON), motor octane number (MON), and octane sensitivity (S), which is the difference between RON and MON. We found that not only RON and MON but also S values increased with the degree of branching of these complex mixtures of iso-olefins. The highest RON of 99.7 and S value of 9.3 were obtained for a mixture of highly branched iso-olefins.

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Citations

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Research works printed but not linked: 1

  1. Akhade, 2019, Elucidating the multi-functionality of dispersed Ag-ZrO2/SiO2 catalysts in the thremal conversion of ethanol to butadiene, ACS Catal

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Metadata

Authors
Dagle, V. L., Lopez, J. S., Cooper, A., Luecke, J., Swita, M., Dagle, R. A., & Gaspar, D.
Affiliations
  • Pacific Northwest National Laboratory (US)
  • National Laboratory of the Rockies (US)
ORCID
Venue
Fuel
Publisher
Elsevier BV
Published
2020-10
Volume
277
Pages
118147
ISSN
0016-2361 (ISSN-L)
DOI
10.1016/j.fuel.2020.118147
OpenAlex
W3031088376
Cited by
27
References
27
Citations by year
2026: 4 · 2025: 3 · 2024: 2 · 2023: 6 · 2022: 5 · 2021: 6 · 2020: 1
FWCI
2.81
Type
journal article
Language
en
Open access
Licence
Locations
  • Fuel (acceptedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • Pacific Northwest National Laboratory
  • U.S. Department of Energy
Topics
  • Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
  • Physical Sciences › Chemistry › Analytical Chemistry › Petroleum Processing and Analysis
  • Physical Sciences › Chemical Engineering › Fluid Flow and Transfer Processes › Advanced Combustion Engine Technologies
Keywords
butene oligomerization, degree of branching, Amberlyst 36, 1-butene, 2-butene, intramolecular isomerization, octane number, octane sensitivity, fuel properties, molecular structure control

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CoChat. (2026). Citation check: Production and fuel properties of iso-olefins with controlled molecular structure and obtained from butene oligomerization. https://app.cochat.ai/papers/10.1016/j.fuel.2020.118147
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Dagle, V. L., Lopez, J. S., Cooper, A., Luecke, J., Swita, M., Dagle, R. A., & Gaspar, D. (2020). Production and fuel properties of iso-olefins with controlled molecular structure and obtained from butene oligomerization. Fuel. https://doi.org/10.1016/j.fuel.2020.118147

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