SiW 12O 40-based ionic liquid catalysts: Catalytic esterification of oleic acid for biodiesel production

Bin Zhen; Hansheng Li; Qingze Jiao; Yuan Li; Qin Wu; Yaping Zhang

doi:10.1021/ie301453c

SiW ₁₂O ₄₀-based ionic liquid catalysts: Catalytic esterification of oleic acid for biodiesel production

Bin Zhen, Hansheng Li^*, Qingze Jiao, Yuan Li, Qin Wu, Yaping Zhang

^*Corresponding author for this work

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

54 Citations (Scopus)

Abstract

Heteropoly acid (SiW ₁₂O ₄₀)-based ionic liquid (SWIL) and silica supported SiW ₁₂O ₄₀-based ionic liquid (SWIL/SiO ₂) catalysts with different contents of SWIL were designed and prepared. The structures of the catalysts were experimentally characterized and theoretically analyzed, and catalytic activities and reusability of the catalysts were evaluated through an esterification reaction between oleic acid and methanol. The results showed that SWIL had excellent activity and good reusability. SWIL dissolved in the reaction mixture during the reaction process and could be precipitated and separated from products at room temperature after methanol and water were removed. The fresh SWIL/SiO ₂ had high catalytic activity close to that of SWIL and could be easily separated from the reaction system just through simple filtration. However, the leaching of SWIL in the esterification reaction caused the deactivation of SWIL/SiO ₂. SWIL contents of SWIL/SiO ₂ played an important role on the catalytic activity and reusability of SWIL/SiO ₂.

Original language	English
Pages (from-to)	10374-10380
Number of pages	7
Journal	Industrial and Engineering Chemistry Research
Volume	51
Issue number	31
DOIs	https://doi.org/10.1021/ie301453c
Publication status	Published - 8 Aug 2012

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@article{841c428e379b425f82872fa67957fac0,

title = "SiW 12O 40-based ionic liquid catalysts: Catalytic esterification of oleic acid for biodiesel production",

abstract = "Heteropoly acid (SiW 12O 40)-based ionic liquid (SWIL) and silica supported SiW 12O 40-based ionic liquid (SWIL/SiO 2) catalysts with different contents of SWIL were designed and prepared. The structures of the catalysts were experimentally characterized and theoretically analyzed, and catalytic activities and reusability of the catalysts were evaluated through an esterification reaction between oleic acid and methanol. The results showed that SWIL had excellent activity and good reusability. SWIL dissolved in the reaction mixture during the reaction process and could be precipitated and separated from products at room temperature after methanol and water were removed. The fresh SWIL/SiO 2 had high catalytic activity close to that of SWIL and could be easily separated from the reaction system just through simple filtration. However, the leaching of SWIL in the esterification reaction caused the deactivation of SWIL/SiO 2. SWIL contents of SWIL/SiO 2 played an important role on the catalytic activity and reusability of SWIL/SiO 2.",

author = "Bin Zhen and Hansheng Li and Qingze Jiao and Yuan Li and Qin Wu and Yaping Zhang",

year = "2012",

month = aug,

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doi = "10.1021/ie301453c",

language = "English",

volume = "51",

pages = "10374--10380",

journal = "Industrial and Engineering Chemistry Research",

issn = "0888-5885",

publisher = "American Chemical Society",

number = "31",

}

TY - JOUR

T1 - SiW 12O 40-based ionic liquid catalysts

T2 - Catalytic esterification of oleic acid for biodiesel production

AU - Zhen, Bin

AU - Li, Hansheng

AU - Jiao, Qingze

AU - Li, Yuan

AU - Wu, Qin

AU - Zhang, Yaping

PY - 2012/8/8

Y1 - 2012/8/8

N2 - Heteropoly acid (SiW 12O 40)-based ionic liquid (SWIL) and silica supported SiW 12O 40-based ionic liquid (SWIL/SiO 2) catalysts with different contents of SWIL were designed and prepared. The structures of the catalysts were experimentally characterized and theoretically analyzed, and catalytic activities and reusability of the catalysts were evaluated through an esterification reaction between oleic acid and methanol. The results showed that SWIL had excellent activity and good reusability. SWIL dissolved in the reaction mixture during the reaction process and could be precipitated and separated from products at room temperature after methanol and water were removed. The fresh SWIL/SiO 2 had high catalytic activity close to that of SWIL and could be easily separated from the reaction system just through simple filtration. However, the leaching of SWIL in the esterification reaction caused the deactivation of SWIL/SiO 2. SWIL contents of SWIL/SiO 2 played an important role on the catalytic activity and reusability of SWIL/SiO 2.

AB - Heteropoly acid (SiW 12O 40)-based ionic liquid (SWIL) and silica supported SiW 12O 40-based ionic liquid (SWIL/SiO 2) catalysts with different contents of SWIL were designed and prepared. The structures of the catalysts were experimentally characterized and theoretically analyzed, and catalytic activities and reusability of the catalysts were evaluated through an esterification reaction between oleic acid and methanol. The results showed that SWIL had excellent activity and good reusability. SWIL dissolved in the reaction mixture during the reaction process and could be precipitated and separated from products at room temperature after methanol and water were removed. The fresh SWIL/SiO 2 had high catalytic activity close to that of SWIL and could be easily separated from the reaction system just through simple filtration. However, the leaching of SWIL in the esterification reaction caused the deactivation of SWIL/SiO 2. SWIL contents of SWIL/SiO 2 played an important role on the catalytic activity and reusability of SWIL/SiO 2.

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U2 - 10.1021/ie301453c

DO - 10.1021/ie301453c

M3 - Article

AN - SCOPUS:84864861933

SN - 0888-5885

VL - 51

SP - 10374

EP - 10380

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 31

ER -

SiW ₁₂O ₄₀-based ionic liquid catalysts: Catalytic esterification of oleic acid for biodiesel production

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