Decomposition of a long chain saturated fatty acid with some additives in hot compressed water

Masaru Watanabe; Toru Iida; Hiroshi Inomata

doi:10.1016/j.enconman.2006.01.009

Decomposition of a long chain saturated fatty acid with some additives in hot compressed water

Masaru Watanabe, Toru Iida, Hiroshi Inomata

Tohoku University

Research output: Contribution to journal › Article › peer-review

157 Citations (Scopus)

Abstract

Stearic acid (C₁₇H₃₅COOH: C₁₇-acid) was treated using a batch reactor with supercritical water (SCW) of 673 K and 0.17 g/cm³ for 30 min. In SCW, C₁₇-acid was stable (2% conversion) and the main products were CO₂ and C₁₆ alkene. An addition of alkali hydroxide (NaOH and KOH) in the SCW reaction enhanced the decarboxylation of C₁₇-acid with the main products being CO₂ and C₁₇ alkane. Metal oxides (CeO₂, Y₂O₃ and ZrO₂) enhanced the decarboxylation of C₁₇-acid and the main products were CO₂ and C₁₆ alkene. Based on the results, the reaction mechanism was proposed.

Original language	English
Pages (from-to)	3344-3350
Number of pages	7
Journal	Energy Conversion and Management
Volume	47
Issue number	18-19
DOIs	https://doi.org/10.1016/j.enconman.2006.01.009
Publication status	Published - 2006 Nov

Keywords

CeO
Decarboxylation
Metal oxide catalyst
SCW
Stearic acid
YO
ZrO

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.enconman.2006.01.009

Cite this

@article{4f56283884014a73bf80f351d1b57acf,

title = "Decomposition of a long chain saturated fatty acid with some additives in hot compressed water",

abstract = "Stearic acid (C17H35COOH: C17-acid) was treated using a batch reactor with supercritical water (SCW) of 673 K and 0.17 g/cm3 for 30 min. In SCW, C17-acid was stable (2% conversion) and the main products were CO2 and C16 alkene. An addition of alkali hydroxide (NaOH and KOH) in the SCW reaction enhanced the decarboxylation of C17-acid with the main products being CO2 and C17 alkane. Metal oxides (CeO2, Y2O3 and ZrO2) enhanced the decarboxylation of C17-acid and the main products were CO2 and C16 alkene. Based on the results, the reaction mechanism was proposed.",

keywords = "CeO, Decarboxylation, Metal oxide catalyst, SCW, Stearic acid, YO, ZrO",

author = "Masaru Watanabe and Toru Iida and Hiroshi Inomata",

note = "Funding Information: We gratefully acknowledge the NEDO project (ID: 02A44001d) for financial support for this work.",

year = "2006",

month = nov,

doi = "10.1016/j.enconman.2006.01.009",

language = "English",

volume = "47",

pages = "3344--3350",

journal = "Energy Conversion and Management",

issn = "0196-8904",

publisher = "Elsevier Ltd.",

number = "18-19",

}

TY - JOUR

T1 - Decomposition of a long chain saturated fatty acid with some additives in hot compressed water

AU - Watanabe, Masaru

AU - Iida, Toru

AU - Inomata, Hiroshi

N1 - Funding Information: We gratefully acknowledge the NEDO project (ID: 02A44001d) for financial support for this work.

PY - 2006/11

Y1 - 2006/11

N2 - Stearic acid (C17H35COOH: C17-acid) was treated using a batch reactor with supercritical water (SCW) of 673 K and 0.17 g/cm3 for 30 min. In SCW, C17-acid was stable (2% conversion) and the main products were CO2 and C16 alkene. An addition of alkali hydroxide (NaOH and KOH) in the SCW reaction enhanced the decarboxylation of C17-acid with the main products being CO2 and C17 alkane. Metal oxides (CeO2, Y2O3 and ZrO2) enhanced the decarboxylation of C17-acid and the main products were CO2 and C16 alkene. Based on the results, the reaction mechanism was proposed.

AB - Stearic acid (C17H35COOH: C17-acid) was treated using a batch reactor with supercritical water (SCW) of 673 K and 0.17 g/cm3 for 30 min. In SCW, C17-acid was stable (2% conversion) and the main products were CO2 and C16 alkene. An addition of alkali hydroxide (NaOH and KOH) in the SCW reaction enhanced the decarboxylation of C17-acid with the main products being CO2 and C17 alkane. Metal oxides (CeO2, Y2O3 and ZrO2) enhanced the decarboxylation of C17-acid and the main products were CO2 and C16 alkene. Based on the results, the reaction mechanism was proposed.

KW - CeO

KW - Decarboxylation

KW - Metal oxide catalyst

KW - SCW

KW - Stearic acid

KW - YO

KW - ZrO

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U2 - 10.1016/j.enconman.2006.01.009

DO - 10.1016/j.enconman.2006.01.009

M3 - Article

AN - SCOPUS:33745908577

SN - 0196-8904

VL - 47

SP - 3344

EP - 3350

JO - Energy Conversion and Management

JF - Energy Conversion and Management

IS - 18-19

ER -

Decomposition of a long chain saturated fatty acid with some additives in hot compressed water

Abstract

Keywords

UN SDGs

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