Chemical Analysis of Impurities in Diverse Bioethanol Samples
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- Habe Hiroshi
- National Institute of Advanced Industrial Science and Technology (AIST)
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- Shinbo Toshio
- National Institute of Advanced Industrial Science and Technology (AIST)
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- Yamamoto Takuji
- National Institute of Advanced Industrial Science and Technology (AIST)
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- Sato Shun
- National Institute of Advanced Industrial Science and Technology (AIST)
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- Shimada Hiromichi
- National Institute of Advanced Industrial Science and Technology (AIST)
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- Sakaki Keiji
- National Institute of Advanced Industrial Science and Technology (AIST)
Bibliographic Information
- Other Title
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- 各種バイオエタノールサンプル中の不純物分析
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Abstract
Bioethanol has recently become an important resource for chemical industries. The chemical compositions of 17 different types of bioethanol were investigated with a focus on impurities that could affect catalytic performances in the downstream chemical processes. Lignocellulosic ethanol contained higher concentrations and a greater variety of organic impurities compared to sugar- or starch-derived bioethanol. Twenty-nine impurities were identified in lignocellulosic ethanol, whereas 16 impurities were in sugar- or starch-derived bioethanol. Lignocellulosic ethanol contained high concentrations of acetic acid, acetaldehyde, methanol, and furan-related compounds such as furfural. In contrast, with the exception of molasses-derived bioethanol obtained by crude distillation, the concentrations of these components were lower in sugar- or starch-derived bioethanol samples. Lignocellulosic ethanol contained dimethyl disulfide and thiazole, whereas the only organosulfur compounds found in sugar- or starch-derived bioethanol were dimethyl sulfide and dimethyl sulfoxide. These sulfur-containing impurities can cause catalyst deactivation in the bioethanol transformation processes. In lignocellulosic ethanol, more than 0.1 μg/mL of Si was detected.
Journal
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- Journal of the Japan Petroleum Institute
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Journal of the Japan Petroleum Institute 56 (6), 414-422, 2013
The Japan Petroleum Institute
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Details 詳細情報について
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- CRID
- 1390001205190720384
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- NII Article ID
- 130003383587
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- NII Book ID
- AA11590615
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- COI
- 1:CAS:528:DC%2BC3sXhslGhtLbN
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- ISSN
- 1349273X
- 13468804
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- NDL BIB ID
- 024968443
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed