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A Review of Isobutanol as a Fuel for Internal Combustion Engines

Olson, André L. LU ; Tunér, Martin LU and Verhelst, Sebastian LU orcid (2023) In Energies 16(22).
Abstract

Isobutanol, one of the four isomers of butanol (C4H9OH), possesses some favorable properties that make it an attractive fuel for internal combustion engines. For instance, when compared to ethanol, isobutanol features a higher heating value and lower hygroscopicity (which prevents corrosion and enables it to be transported via pipelines). Moreover, its addition to gasoline does not distort the fuel blend’s vapor pressure to the same extent as ethanol does. All of this while having a high octane rating. Those advantages over ethanol suggest that isobutanol has the potential to be used as a gasoline oxygenate or even as a neat fuel. Furthermore, the advances made in biotechnology have enabled isobutanol to be... (More)

Isobutanol, one of the four isomers of butanol (C4H9OH), possesses some favorable properties that make it an attractive fuel for internal combustion engines. For instance, when compared to ethanol, isobutanol features a higher heating value and lower hygroscopicity (which prevents corrosion and enables it to be transported via pipelines). Moreover, its addition to gasoline does not distort the fuel blend’s vapor pressure to the same extent as ethanol does. All of this while having a high octane rating. Those advantages over ethanol suggest that isobutanol has the potential to be used as a gasoline oxygenate or even as a neat fuel. Furthermore, the advances made in biotechnology have enabled isobutanol to be produced from biomass more efficiently, allowing it to be used in compliance with existing renewable energy mandates. This article reviews some of the relevant literature dedicated to isobutanol as a motor fuel, covering its merits and drawbacks. Several studies on its combustion characteristics are also discussed. Most of the included literature refers to the use of isobutanol in spark-ignition (SI) engines, as its properties naturally lend themselves to such applications. However, isobutanol’s utilization in diesel engines is also addressed, along with a couple of low-temperature combustion examples.

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Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
biofuel, butanol, combustion, emissions, fuel blends, internal combustion engine, isobutanol, oxygenate, renewable
in
Energies
volume
16
issue
22
article number
7470
publisher
MDPI AG
external identifiers
  • scopus:85177845838
ISSN
1996-1073
DOI
10.3390/en16227470
language
English
LU publication?
yes
id
52a4b82b-c403-4194-b007-279601f234fd
date added to LUP
2024-01-02 14:23:23
date last changed
2024-01-02 14:24:56
@article{52a4b82b-c403-4194-b007-279601f234fd,
  abstract     = {{<p>Isobutanol, one of the four isomers of butanol (C<sub>4</sub>H<sub>9</sub>OH), possesses some favorable properties that make it an attractive fuel for internal combustion engines. For instance, when compared to ethanol, isobutanol features a higher heating value and lower hygroscopicity (which prevents corrosion and enables it to be transported via pipelines). Moreover, its addition to gasoline does not distort the fuel blend’s vapor pressure to the same extent as ethanol does. All of this while having a high octane rating. Those advantages over ethanol suggest that isobutanol has the potential to be used as a gasoline oxygenate or even as a neat fuel. Furthermore, the advances made in biotechnology have enabled isobutanol to be produced from biomass more efficiently, allowing it to be used in compliance with existing renewable energy mandates. This article reviews some of the relevant literature dedicated to isobutanol as a motor fuel, covering its merits and drawbacks. Several studies on its combustion characteristics are also discussed. Most of the included literature refers to the use of isobutanol in spark-ignition (SI) engines, as its properties naturally lend themselves to such applications. However, isobutanol’s utilization in diesel engines is also addressed, along with a couple of low-temperature combustion examples.</p>}},
  author       = {{Olson, André L. and Tunér, Martin and Verhelst, Sebastian}},
  issn         = {{1996-1073}},
  keywords     = {{biofuel; butanol; combustion; emissions; fuel blends; internal combustion engine; isobutanol; oxygenate; renewable}},
  language     = {{eng}},
  number       = {{22}},
  publisher    = {{MDPI AG}},
  series       = {{Energies}},
  title        = {{A Review of Isobutanol as a Fuel for Internal Combustion Engines}},
  url          = {{http://dx.doi.org/10.3390/en16227470}},
  doi          = {{10.3390/en16227470}},
  volume       = {{16}},
  year         = {{2023}},
}